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Juneau, United States
Click any image to view larger versionPast Weather Alerts
5 of 140Special Weather Statement
A pattern change begins Tuesday as clear and cold conditions give way to accumulating snow for the p...
High Wind Warning
* WHAT...Northeast winds 30 to 40 mph with gusts of 60 to 70 mph. * WHERE...City and Borough of Jun...
High Wind Warning
* WHAT...Northeast winds 25 to 35 mph with gusts to 60 mph increasing to 80 mph. * WHERE...Downtown...
High Wind Warning
* WHAT...Northeast winds 25 to 35 mph with gusts to 60 mph increasing to 80 mph. * WHERE...Downtown...
High Wind Warning
* WHAT...Northeast winds 25 to 35 mph with gusts near 60 to 80 mph expected. Occasional gusts near 9...
Past Weather Alerts for Juneau
Special Weather Statement
A pattern change begins Tuesday as clear and cold conditions give way to accumulating snow for the panhandle by the middle of the week as a system moves in from the northern Gulf. Current expectation is snow will be slow to accumulate, with this event proving to be longer in duration with forecast accumulations around 4 to 8 inches of snow starting Tuesday through Thursday. Highest snowfall totals will be for areas north of Sumner Strait, though a brief period of warming conditions late Tuesday will see some areas of the central panhandle change over to rain briefly, before cooler air returns through Wednesday. Thursday will see snow showers become increasingly predominant, with highly variable snow accumulations expected as the low moves south. Stay tuned for latest forecast updates at weather.gov/juneau
High Wind Warning
* WHAT...Northeast winds 30 to 40 mph with gusts of 60 to 70 mph. * WHERE...City and Borough of Juneau. * WHEN...Until 9 PM AKST this evening. * IMPACTS...High winds will blow around unsecured objects and may damage property and cause power outages. Travel by land, sea, or air will be difficult. * ADDITIONAL DETAILS...Strongest gusts are expected to continue through early Sunday morning. Blowing snow may cause visibility restrictions.
High Wind Warning
* WHAT...Northeast winds 25 to 35 mph with gusts to 60 mph increasing to 80 mph. * WHERE...Downtown Juneau and Douglas. * WHEN...Until 9 PM AKST Sunday. * IMPACTS...High winds will blow around unsecured objects and may damage property and cause power outages. Travel by land, sea, or air will be difficult. * ADDITIONAL DETAILS...Winds will continue to increase through Saturday evening, with strongest gusts after midnight through early Sunday afternoon.
High Wind Warning
* WHAT...Northeast winds 25 to 35 mph with gusts to 60 mph increasing to 80 mph. * WHERE...Downtown Juneau and Douglas. * WHEN...Until 9 PM AKST Sunday. * IMPACTS...High winds will blow around unsecured objects and may damage property and cause power outages. Travel by land, sea, or air will be difficult. * ADDITIONAL DETAILS... Winds have remained elevated throughout Friday night and into Saturday afternoon with frequent gusts up to 50 mph and isolated gusts up to 60 mph. Winds will continue to increase through Saturday evening, with strongest gusts after midnight through 12 pm Sunday.
High Wind Warning
* WHAT...Northeast winds 25 to 35 mph with gusts near 60 to 80 mph expected. Occasional gusts near 90 mph are possible. * WHERE...Downtown Juneau and South Douglas. * WHEN...Until 9 PM AKST Sunday. * IMPACTS...High winds will blow around unsecured objects and may damage property and cause power outages. Travel by land, sea, or air will be difficult. * ADDITIONAL DETAILS...Strongest wind gusts are most likely Saturday afternoon and evening.
High Wind Warning
* WHAT...Northeast winds 25 to 35 mph with frequent gusts near 60 to 80 mph expected. Occasional gusts near 90 mph are possible. * WHERE...Downtown Juneau and South Douglas. * WHEN...Until 9 PM AKST Sunday. * IMPACTS...High winds will blow around unsecured objects and may damage property and cause power outages. Travel by land, sea, or air will be difficult. * ADDITIONAL DETAILS...Friday morning winds were already increasing with gusts around 30 to 40 mph over Downtown Juneau and South Douglas. This has created areas of blowing snow with reduced visibilities. Winds will continue to increase into Friday evening. Strongest wind gusts are most likely Saturday afternoon and evening.
High Wind Warning
* WHAT...Northeast winds 25 to 35 mph with frequent gusts near 60 to 80 mph expected. Occasional gusts near 90 mph are possible. * WHERE...Downtown Juneau and South Douglas. * WHEN...From 9 PM this evening to 9 PM AKST Sunday. * IMPACTS...High winds will blow around unsecured objects and may damage property and cause power outages. Travel by land, sea, or air will be difficult. * ADDITIONAL DETAILS...Friday morning winds were already increasing with gusts around 30 to 40 mph over Downtown Juneau and South Douglas. This has created areas of blowing snow with reduced visibilities. Winds will continue to increase into Friday evening. Strongest wind gusts are most likely Saturday afternoon and evening.
High Wind Watch
* WHAT...Northeast winds 20 to 30 mph with gusts up to 60 mph possible. * WHERE...Downtown Juneau and Douglas. * WHEN...From late Sunday night through Monday morning. * IMPACTS...High winds could blow around unsecured objects, damage property and cause power outages. Travel by land, sea, or air could be difficult. * ADDITIONAL DETAILS...Potential for highest wind gusts maximize during the early morning hours of Monday.
High Wind Watch
* WHAT...South winds 25 to 35 mph with gusts up to 65 mph possible. * WHERE...Cape Fairweather to Lisianski Strait and City and Borough of Sitka. * WHEN...From late Wednesday night through Thursday evening. * IMPACTS...High winds could blow around unsecured objects, damage property and cause power outages. Travel by land, sea, or air could be difficult.
Wind Advisory
* WHAT...For the Wind Advisory, south winds 20 to 30 mph with gusts up to 45 mph expected. For the High Wind Watch, south winds 25 to 35 mph with gusts up to 65 mph possible. * WHERE...Cape Fairweather to Lisianski Strait and City and Borough of Sitka. * WHEN...For the Wind Advisory, from 8 PM this evening to 2 AM AKST Wednesday. For the High Wind Watch, from late Wednesday night through Thursday evening. * IMPACTS...High winds could blow around unsecured objects, damage property and cause power outages. Travel by land, sea, or air could be difficult.
High Wind Watch
* WHAT...For the Wind Advisory, south winds 20 to 30 mph with gusts up to 45 mph expected. For the High Wind Watch, south winds 25 to 35 mph with gusts up to 65 mph possible. * WHERE...Cape Fairweather to Lisianski Strait and City and Borough of Sitka. * WHEN...For the Wind Advisory, from 8 PM this evening to 2 AM AKST Wednesday. For the High Wind Watch, from late Wednesday night through Thursday evening. * IMPACTS...High winds could blow around unsecured objects, damage property and cause power outages. Travel by land, sea, or air could be difficult.
Special Weather Statement
A strong front is still on track to push into SE AK from the west later Tuesday into early Wednesday. The highest impact from this front will be areas of strong winds with gusts near 40 to 45 mph in many places and gusts of 50 to 55 mph near Skagway. A period of moderate to heavy rainfall will also occur with the frontal passage, but with the progressive nature of the front, flooding is not expected at this time. Additionally, a gale to potentially storm force low will quickly lift northeast into the Gulf and push across southeast Alaska sometime later Wednesday into Thursday, bringing another round of strong gusty winds and moderate to heavy rainfall. Currently there is around an 80% chance of gale force winds with a 60 to 70% chance of storm force wind gusts. We will continue to update details on the wind and flooding potential for this system in the coming days. Looking further ahead, a cooling trend is favored to commence in the wake of these passing systems by late work week into the weekend. Snow levels will begin to lower and a colder outflow wind pattern could set up by late weekend. This could result in a return of snow for some coastal communities, especially across northern southeast Alaska. Further details on the pattern change and snow potential will be honed as the weekend approaches.
Special Weather Statement
After a series of shortwaves that brought rain and gusty winds over the past few days, a stronger front will approach southeast Alaska from the west on Tuesday. South to southeast winds will increase through the day Tuesday. Confidence is increasing for windy conditions with strong gusts Tuesday night into Wednesday morning as the front pushes west to east across southeast Alaska. Gales with storm force gusts will be possible ahead and along the frontal passage, especially along north-south oriented channels and along the coastal waters. A period of moderate to heavy rainfall will be possible with the frontal passage, but with the progressive nature of the front, flooding is not expected at this time. Another gale to potentially storm force low will quickly lift northeast into the Gulf and looks to push across southeast Alaska sometime later Wednesday into Thursday, bringing another round of strong gusty winds and moderate to heavy rainfall. Further details on the high wind and flooding potential for this system will be honed in on in the coming days. Looking further ahead, a cooling trend is favored to commence in the wake of these passing systems by late work week into the weekend. Snow levels will begin to lower and a colder outflow wind pattern could set up by late weekend. This could result in a return of snow for some coastal communities, especially across northern southeast Alaska. Further details on the pattern change and snow potential will be honed as the weekend approaches.
Freezing Fog Advisory
* WHAT...Visibility one quarter mile or less in freezing fog. * WHERE...Cape Fairweather to Lisianski Strait. * WHEN...Until noon AKST Wednesday. * IMPACTS...Hazardous driving conditions due to low visibility and potential frost on bridges. * ADDITIONAL DETAILS...Patchy freezing fog will continue to be intermittent through Wednesday morning.
Freezing Fog Advisory
* WHAT...Visibility one quarter mile or less in freezing fog. * WHERE...Eastern Chichagof Island mainly for protected areas around Tenakee Springs, Petersburg Borough, and Western Kupreanof Island and Kuiu Island including Kake. * WHEN...Until noon AKST Wednesday. * IMPACTS...Hazardous driving conditions due to low visibility and potential frost on bridges. * ADDITIONAL DETAILS...Patchy freezing fog will continue to be intermittent through Wednesday morning.
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Glacier Bay, Eastern Chichagof Island, Admiralty Island, City and Borough of Juneau, Petersburg Borough, Western Kupreanof Island and Kuiu Island and City and Borough of Wrangell. * WHEN...Until noon AKST today. * IMPACTS...Hazardous driving conditions due to low visibility. * ADDITIONAL DETAILS...Patchy areas of freezing fog will possible, which could result in slick spots on untreated surfaces.
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Glacier Bay including Gustavus, Eastern Chichagof Island including Hoonah, Admiralty Island including Angoon, City and Borough of Juneau, and Western Kupreanof Island and Kuiu Island including Kake. * WHEN...Until noon AKST Monday. * IMPACTS...Hazardous travel conditions due to low visibility. * ADDITIONAL DETAILS...The fog may periodically vary in lateral coverage and denseness/thickness, especially for areas near the outer edge of the advisory.
Special Weather Statement
Another fast moving and wet system is expected for Tuesday into Tuesday night, bringing more moderate to heavy rain and strong winds. Total rainfall amounts will be around 1 to 3 inches, with gusty winds up to 65 mph possible during the event. The heaviest rainfall rates will occur during the morning and afternoon hours, tapering off during the evening hours. Strongest wind gusts will follow the heaviest rain, occurring during the late afternoon into the evening hours, then tapering off overnight. Additionally, freezing levels will be rising to 4000 to 6000 ft on Tuesday, leading to additional snowmelt. Expect rapid rises on smaller area rivers and streams Tuesday into Tuesday night, but we are not expecting flooding at this time. Winds and rain will continue to diminish through the day Wednesday.
Special Weather Statement
Another fast moving and wet system is expected for Tuesday into Tuesday night, bringing more moderate to heavy rain and strong winds for northern SEAK. Total rainfall amounts will be around 1.5 to 3.5 inches with gusty winds up to 65 mph possible during the event. The heaviest rainfall rates will occur during the afternoon and evening hours, tapering off during the overnight hours. Strongest wind gusts will follow the heaviest rain, occurring during the evening and overnight hours, then tapering off Wednesday morning. Freezing levels will be rising to 2000 to 5000 ft, leading to additional snowmelt. Any areas that are continuing to see drainage issues or ponding will likely see additional pooling of water. Winds and rain will continue to diminish through the day Wednesday.
Civil Emergency Message
CEMAJK The following message is transmitted at the request of the City and Borough of Juneau Manager's Office. This is an avalanche evacuation advisory. The avalanche evacuation advisory remains in effect for the Behrends slide path. The evacuation advisory was lifted for all other known slide paths on Sunday, however, avalanche risk remains elevated. With freezing levels of around 3000 feet and rain continuing, large avalanches remain possible. An emergency shelter is available at Centennial Hall. Emergency response crews are staged to respond in the event of an avalanche. Please limit travel in avalanche exposed areas. CBJ and DOT are actively monitoring and assessing avalanche risk for all known slide paths and will provide updates as conditions change. Residents should know their risk and take action. If you are in danger or experiencing an emergency, please call 911. You can find more information online at juneau.org.
Flood Advisory
Persistent warm temperatures combined with recent rain on existing snowpack has lead to gradual rises in some streams. A fast moving system will bring additional rainfall and continued warm temperatures and rising snow levels to the Juneau area Tuesday, with moderate to locally heavy rainfall coming primarily in two waves. The first will move through in the early afternoon Tuesday lasting through the early evening, with the second wave moving through late Tuesday night through early Wednesday morning. * WHAT...Flooding caused by rain and snowmelt is expected. * WHERE...Jordan Creek near areas around the Jordan Creek Mall. * WHEN...Until 900 AM AKST Wednesday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 159 AM AKST, gauge reports indicated elevated stream levels near Jordan Creek. Rapid snowmelt is occurring and will combine with rain to cause minor flooding. Minor flooding is ongoing or expected to begin shortly, especially near Jordan Creek. Between 0.5 and 0.75 inches of rain have fallen within the last 24 hours at Juneau International Airport. Additional rainfall amounts of 1.5 to 2 inches are possible through Wednesday morning. - For Jordan Creek near Juneau: At 1:00am the stage was 9.7 feet. Flood Stage is 9.7 feet. Impacts: At 9.7 feet: Water will inundate the Jordan Square's front and back parking lots, around Jordan Creek office condominiums with up to one foot of water. Some residential driveways will be flooded and cut off.
High Wind Warning
* WHAT...Southeast winds 25 to 35 mph with gusts up to 65 mph expected. * WHERE...Glacier Bay including Gustavus, Eastern Chichagof Island including Hoonah, Cape Fairweather to Lisianski Strait including Elfin Cove and Pelican, Admiralty Island including Angoon, and City and Borough of Juneau. * WHEN...From 6 PM Tuesday to 9 AM AKST Wednesday. * IMPACTS...High winds will blow around unsecured objects and may damage property and cause power outages. Travel will be difficult. * ADDITIONAL DETAILS...A strong, quick moving system, is going to push through the Gulf of Alaska Tuesday into Wednesday. This low will allow for winds to quickly increase Tuesday afternoon, first over southern portions of the panhandle then moving northward. The central panhandle is most likely to see the strongest wind gusts from 9 pm Tuesday to 3 am Wednesday. This timing can change as the system moves closer. Confidence has increased in the system bringing very strong wind gusts around 60 mph, but stronger gusts could occur if the low tracks closer to the panhandle.
Civil Emergency Message
CEMAJK The following message is transmitted at the request of the City and Borough of Juneau Managers Office. This is an avalanche evacuation Advisory. The potential for avalanches in all known slide paths continues. Avalanches remain very likely due to recent snowfall, warmer temperatures and rain at high elevations. An emergency shelter is available at Centennial Hall. Emergency response crews are staged to respond in the event of an avalanche. Please limit travel in avalanche exposed areas. The Alaska Department of Transportation closed Thane Road at the avalanche gates at noon, Friday January 9th. You can find more information online at juneau.org.
Flood Advisory
An atmospheric river with multiple surges of moisture is expected to continue through the weekend. Heavy rain is rapidly melting the recently fallen snow in previously cleared areas. Rain rates are expected to begin to decrease overnight tonight. * WHAT...Flooding caused by rain and snowmelt is expected. * WHERE...The following area, Hoonah. * WHEN...Until 900 PM AKST Saturday. * IMPACTS...Storm drains and ditches are clogged with snow, ice, and other debris. Ponding of water in areas is occurring. * ADDITIONAL DETAILS... - At 821 PM AKST, City officials reported an area of rain and snowmelt across the advisory area is causing minor flooding, especially along roads. Between 1 and 3 inches of rain have fallen. Additional rainfall amounts of 0.5 to 2 inches are possible. Recently fallen snow on areas previously cleared of the existing snowpack are expected to produce the highest runoff from rapid snowmelt.
Flood Advisory
An atmospheric river with multiple surges of moisture is expected to continue through the weekend. Heavy rain is rapidly melting the recently fallen snow in previously cleared areas. Rain rates are expected to begin to decrease overnight tonight. * WHAT...Flooding caused by rain and snowmelt continues. * WHERE...The following area, Juneau. * WHEN...Until 900 PM AKST Saturday. * IMPACTS...Storm drains and ditches are clogged with snow, ice, and other debris. Ponding of water in areas is occurring. * ADDITIONAL DETAILS... - At 727 PM AKST, NWS Staff reported rain and snowmelt are causing minor flooding. Between 1.0 and 2.0 inches of rain have fallen. Additional rainfall amounts of 0.5 to 2 inches are possible. The existing deep snowpack is not expected to produce much, if any, runoff. Recently fallen snow on areas previously cleared of the existing snowpack are expected to produce the highest runoff from rapid snowmelt.
Flood Watch
An atmospheric river with multiple surges of moisture have moved into the panhandle and is possible to last into Sunday evening. Precipitation has mostly transitioned to rain around Icy Strait and Juneau, and is still expected to transition for the northern inner channels Friday evening into overnight Friday. Snow levels have begun to rapidly increase to 2500 ft around the Icy Strait and Juneau area, with snow levels exceeding 4000 ft in the southern half of the panhandle. A brief, distinct lull in heavy rainfall is now expected overnight tonight into Saturday morning for the southern half of the panhandle, before another surge of moderate to heavy rain. Total additional rainfall amounts from late Thursday night through Saturday night (roughly 48 hours) may range around 4.0 to 5.5 inches extreme southern panhandle, including Ketchikan and Metlakatla, 2.0-3.0 inches for the central inner channels including Petersburg, Wrangell, and Kake, 1.0 to 2.0 inches for the Icy Strait corridor, 2.0 to 3.5 for the Juneau area, and 1.0 to 1.5 inches for the far northern inner channels near sea level. Furthermore, any snowfall accumulations on areas cleared of the deep snow pack, such as sidewalks or roadways, may cause additional runoff from melting snow. Currently expecting the snowpack to absorb most rainfall from this weekend system and produce minimal runoff in the northern half of the panhandle with a deep sea level snowpack. Therefore, snow, ice, or other debris could potentially blocking storm drains and allow for ponding of rain and snowmelt in areas that they normally would not collect, such as roadways or walkways. Another surge of moisture is looking increasingly likely for the southern half of the panhandle overnight Saturday and continuing through Sunday, and therefore, the flood watch was extended. There is growing confidence that very strong rain rates during the morning hours for the Ketchikan, Metlakatla, and Prince of Wales Island, with around a 40-60% chance for 3 hour rates exceeding 0.4 inches. This surge in precipitation may coincide with another surge of wind gusts, with sea level gusts possibly reaching as high as 50 mph Sunday evening. The southern panhandle could see 1.5 to 3.0 additional inches, the central inner channels could receive 1.0 to 2.0 additional inches, the Icy Strait corridor could receive 0.75 to 1.5 additional inches, and the Juneau area could receive 1.5 to 2.5 additional inches. Stay tuned for more information. * WHAT...Flooding caused by rain and snowmelt continues to be possible. * WHERE...The following areas, Eastern Gulf Coast and Central Inner Channels. This includes the cities of Gustavus, Hoonah, Tenakee Springs, Elfin Cove, Pelican, Angoon, And Juneau. * WHEN...Through Saturday evening. * IMPACTS...Storm drains and ditches are clogged with snow that may cause ponding of water in these poor drainage areas. * ADDITIONAL DETAILS... - The Icy Strait and Juneau area has just switched over to rain with the exception of north past Auke Bay, with areas near Gustavus transitioning soon. Heavy rain will fall on the existing snowpack which may lead to increased runoff and may produce ponding of water in poor drainage areas during the watch time frame. Through Saturday evening, an additional 1.0 to 2.0 inches for the Icy Strait corridor, 2.0 to 3.5 for the Juneau area is possible. Depending on how culverts and storm drains behave during this upcoming rain, along with the additional rainfall of around 0.75 to 2.5 inches with higher amounts near Juneau, the flood watch may be extended into Sunday.
Civil Emergency Message
CEMAJK The following message is transmitted at the request of the City and Borough of Juneau Managers Office. This is an avalanche evacuation Advisory. The potential for avalanches in all known slide paths continues to increase quickly. Avalanches are very likely due to increased snowfall, warmer temperatures and several inches of rain anticipated at high elevations. An emergency shelter will be available at Centennial Hall by noon Friday January 9th. Emergency response crews are staged to respond in the event of an avalanche. Please limit travel in avalanche exposed areas. The Alaska Department of Transportation will close Thane Road at the avalanche gates at noon, Friday January 9th. You can find more information online at juneau.org.
Flood Advisory
An atmospheric river with multiple surges of moisture is expected to continue through the weekend. Snow has transitioned to heavy rain, rapidly melting the recently fallen snow in previously cleared areas. Rain rates are expected to increase through the early afternoon, and begin to decrease overnight tonight. * WHAT...Flooding caused by rain and snowmelt is expected. * WHERE...The following area, Juneau. * WHEN...Until 900 PM AKST Saturday. * IMPACTS...Storm drains and ditches are clogged with snow, ice, and other debris. Ponding of water in areas is occurring. * ADDITIONAL DETAILS... - At 1148 AM AKST, NWS Staff reported rain and snowmelt are causing minor flooding. Between 0.25 and 0.5 inches of rain have fallen. Additional rainfall amounts of 2 to 3.5 inches are possible. The existing deep snowpack is not expected to produce much, if any, runoff. Recently fallen snow on areas previously cleared of the existing snowpack are expected to produce the highest runoff from rapid snowmelt.
Winter Weather Advisory
An atmospheric river will be impacting the area starting early Friday morning. Temperatures are expected to be slow to warm around Haines and Skagway Friday; possibly not warming above freezing until Friday evening near sea level when southerly winds with gusts to 50 mph could develop during the transition to rain. Inland and higher elevation areas of the Haines and Klondike highways, specifically above 1000 ft, could remain snow through the entire event. For the Icy Strait corridor, continued snow showers followed by warm, moist air overrunning the arctic boundary south of the area will bring accumulating snow. * WHAT...Snow. Additional snow accumulations of around 3 to 5 inches. * WHERE...Glacier Bay, Eastern Chichagof Island, Cape Fairweather to Lisianski Strait, & City & Borough of Juneau. * WHEN...Until 9 AM AKST Friday. * IMPACTS...Travel could be very difficult. Heavy wet snow will be difficult to manage due to high water content. * ADDITIONAL DETAILS...Snow will be dependent on how strong warm air aloft moves into the area. If warm air moves in quicker, bringing temperatures up faster, then less snow will accumulate and the transition to rain will be faster. If the warm air takes longer to move in, & the rain transition to be slower, total snow accumulations could be up to 8 inches.
Flood Watch
An atmospheric river with multiple surges of moisture is expected to arrive across the panhandle starting late Thursday night and lasting through early Saturday morning. Precipitation is expected to start as snow for many areas, but will be transitioning to rain for area near sea level up to around Icy Strait and Juneau into Friday morning and at the latest overnight Friday into Saturday for the far northern inner channels of the panhandle. Southern panhandle is expected to switch over first Thursday night, Icy Strait during the morning hours of Friday, and Friday evening at the latest for Haines and Skagway. With the transition, snow levels are expected to rapidly increase to 2500 ft or greater in the southern half of the panhandle. For Haines and Skagway, it is possible to only reach around 1000 ft. Total rainfall amounts from late Thursday night through Friday night may range around 3.0 to 4.5 inches extreme southern panhandle, including Ketchikan and Metlakatla, 2.0-3.5 inches for the central inner channels including Petersburg, Wrangell, and Kake, 2.0 to 3.5 inches for the Icy Strait corridor including Juneau, and 1.0 to 1.5 inches for the far northern inner channels near sea level. Furthermore, any snowfall accumulations on areas cleared of the deep snow pack, such as sidewalks or roadways, may cause additional runoff from melting snow. Currently expecting the snowpack to absorb most rainfall from this weekend system and produce minimal runoff in the northern half of the panhandle with a deep sea level snowpack. Therefore, snow, ice, or other debris could potentially blocking storm drains and allow for ponding of rain and snowmelt in areas that they normally would not collect, such as roadways. Rain for sea level areas is expected to continue into the weekend, with a series of fronts to push more moisture over the area. Early indication of an additional 1.5-2.5 inches of rain for the southern panhandle, 1.0 to 2.0 inches for the central panhandle and Icy Strait, and up to 1.5 inches of rain near Haines and Skagway. Details for how this will interact with the existing snowpack and when it will be primed and begin to runoff is still unknown at this time. Stay tuned for more information. * WHAT...Flooding caused by rain and snowmelt continues to be possible. * WHERE...The following areas, Eastern Gulf Coast and Central Inner Channels. This includes the cities of Gustavus, Hoonah, Tenakee Springs, Elfin Cove, Pelican, Angoon, And Juneau. * WHEN...From Friday morning through Saturday evening. * IMPACTS...Storm drains and ditches are clogged with snow that may cause ponding of water in these poor drainage areas. * ADDITIONAL DETAILS... - An atmospheric river is forecast to impact the panhandle late Thursday night into Friday night. Areas around Icy Strait and Juneau will see 3 to 6 inches of snowfall before a transition to rain is expected Friday morning. Heavy rain will fall on the existing snowpack which may lead to increased runoff and may produce ponding of water in poor drainage areas during the watch time frame. Around 1-3 inches of rainfall is possible Friday into Friday night, with another 1-2 inches of rainfall on Saturday.
Flood Watch
An atmospheric river is expected to arrive across the panhandle starting late Thursday night and lasting through early Saturday morning. Precipitation is expected to start as snow for many areas, but will be transitioning to rain for many sea level areas into Friday. Southern panhandle is expected to switch over first Thursday night, Icy Strait during the morning hours of Friday, and Friday evening at the lastest for Haines and Skagway. Total rainfall amounts from late Thursday night through Friday night may range around 3.0 to 4.5 inches extreme southern panhandle, including Ketchikan and Metlakatla, 2.0-3.5 inches for the central inner channels including Petersburg, Wrangell, and Kake, 2.0-3.5 inches for the Icy Strait corridor including Juneau, and 1.0 to 1.5 inches for the northern panhandle near sea level. Furthermore, any snowfall accumulations on areas cleared of the deep snow pack, such as sidewalks or roadways, may cause additional runoff from melting snow. Currently expecting the snowpack to absorb most rainfall from this weekend system and produce minimal runoff. Therefore, snow, ice, or other debris could potentially blocking storm drains and allow for ponding of rain and snowmelt in areas that they normally would not collect, such as roadways. * WHAT...Flooding caused by rain and snowmelt continues to be possible. * WHERE...The following areas, Eastern Gulf Coast and Central Inner Channels. This includes the cities of Gustavus, Hoonah, Tenakee Springs, Elfin Cove, Pelican, Angoon, And Juneau. * WHEN...From Friday morning through Saturday evening. * IMPACTS...Storm drains and ditches are clogged with snow that may cause ponding of water in these poor drainage areas. * ADDITIONAL DETAILS... - An atmospheric river is forecast to impact the panhandle late Thursday night into Friday night. Areas around Icy Strait and Juneau may see a couple inches of snowfall before a transition to rain is expected Friday morning. Heavy rain may fall on the existing snowpack leading to increased runoff. Around 1-3 inches of rainfall is possible Friday into Friday night.
Winter Weather Advisory
An atmospheric river will be impacting the area starting early Friday morning. Temperatures are expected to be slow to warm around Haines and Skagway Friday; possibly not warming above freezing until Friday evening near sea level when southerly winds with gusts to 50 mph could develop during the transition to rain. Inland and higher elevation areas of the Haines and Klondike highways, specifically above 1000 ft, could remain snow through the entire event. For the Icy Strait corridor, continued snow showers followed by warm, moist air overrunning the arctic boundary south of the area will bring accumulating snow. * WHAT...Snow. Additional snow accumulations of 5 to 8 inches. * WHERE...Glacier Bay. * WHEN...Until 9 AM AKST Friday. * IMPACTS...Travel could be very difficult. Heavy wet snow will be difficult to manage due to high water content. * ADDITIONAL DETAILS...Ongoing moderate to heavy snow showers continue through this evening before a more organized system arrives. These continued snow showers will bring another 2 to 5 inches before the larger system arrives. Snow will be dependent on how strong warm air aloft moves into the area. If warm air moves in quicker, bringing temperatures up faster, then less snow will accumulate and the transition to rain will be faster.
Winter Weather Advisory
An atmospheric river will be impacting the area starting early Friday morning. Temperatures are expected to be slow to warm around Haines and Skagway Friday; possibly not warming above freezing until Friday evening near sea level when southerly winds with gusts to 50 mph could develop during the transition to rain. Inland and higher elevation areas of the Haines and Klondike highways, specifically above 1000 ft, could remain snow through the entire event. For the Icy Strait corridor, continued snow showers followed by warm, moist air overrunning the arctic boundary south of the area will bring accumulating snow. * WHAT...Snow expected. Total snow accumulations of 4 to 6 inches. * WHERE...Eastern Chichagof Island, Cape Fairweather to Lisianski Strait and City and Borough of Juneau. * WHEN...From 9 PM this evening to 9 AM AKST Friday. * IMPACTS...Travel could be very difficult. Heavy wet snow will be difficult to manage due to high water content. * ADDITIONAL DETAILS...Snow will be dependent on how strong warm air aloft moves into the area. If the warm air takes longer to move in, snow accumulations could be up to 8 inches. If warm air moves in quicker, bringing temperatures up faster, then less snow will accumulate and the transition to rain will be faster.
Hydrologic Outlook
ESFAJK Including the cities of Yakutat, Skagway, White Pass, Haines, Gustavus, Hoonah, Tenakee Springs, Elfin Cove, Pelican, and Juneau
Hydrologic Outlook
ESFAJK Off and on showers will continue through mid week. The next organized system will push an atmospheric river into the panhandle late Thursday night through Friday. This system will bringing rounds of moderate to heavy rain for communities along and south of a line from Sitka to Angoon to Petersburg. Current forecast rainfall amounts are around 2 to 4 inches, with locally higher amounts approaching 5 inches at higher terrain. This rainfall in combination with rapidly rising freezing levels around 3000 to 5000ft will lead to localized flooding concerns like rapid river rises on small streams, ponding on road ways and poor drainage due to snow blocking drains. Any existing snowpack will become more dense and hard to move. Preparations should begin for an expected rain on snow event going into the weekend. Including the cities of Sitka, Angoon, Petersburg, Kake, Port Alexander, Craig, Klawock, Hydaburg, Coffman Cove, Thorne Bay, Wrangell, Ketchikan, Hyder, and Metlakatla
Flood Advisory
The recent warmup and rain have lead to excessive melting of area snowpack. Flooding and ponding of water has been reported along many roads and highways Tuesday evening across Juneau and Douglas. * WHAT...Flooding caused by rain and snowmelt is occurring * WHERE...Juneau, Douglas and surrounding area. * WHEN...Until 800 PM AKST Wednesday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. Overflowing poor and frozen over drainage areas. Ponding of water in areas is occurring or is imminent. * ADDITIONAL DETAILS... - At 814 PM AKST, Public and NWS employees reported rain and snowmelt causing ponding of water on area roadways. Flooding is being exacerbated from overflow of poor and frozen over drainage areas. Between 0.25 and 0.75 inches of rain have fallen. Additional rainfall amounts of 0.25 to 0.75 inches are expected, leading to additional snowmelt and ponding of roadways through Wednesday. - Some locations that will experience flooding include... Juneau, Douglas, Saint Therese, Auke Bay, Lemon Creek area, Outer Point, Tee Harbor, Salmon Creek area, and Thane.
Winter Storm Warning
...HEAVY SNOW CONTINUES FOR SOUTHEAST ALASKA THROUGH MONDAY... Snowfall is ongoing across much of the panhandle as a front pushes inland, with snowfall rates beginning to diminish in the wake of the front as snow showers replace the previously widespread snowfall. Heaviest snowfall rates will continue through Monday afternoon for locations along and north of the Icy Strait Corridor. An initial warmup moving up from the south has brought temperatures as far north as Hoonah and Pelican to 34 degrees. That warm up is expected to continue into the early morning hours of Tuesday, resulting in some locations changing over to a rain and rain/snow mix for areas along and south of the Icy Strait Corridor from Elfin Cove to Gustavus and Juneau. However, weakening winds combined with heavy snow showers on Tuesday will likely see a switch back to snow for most areas. Main forecast challenge on Tuesday will be the highly variable snowfall accumulations across the northern panhandle due to the hit or miss nature of the showers. The potential exists that warnings and advisories could be extended into Tuesday. * WHAT...Heavy snow. Additional snow accumulations of 1 to 4 inches. Winds gusting as high as 30 mph. * WHERE...Glacier Bay, Eastern Chichagof Island, Cape Fairweather to Lisianski Strait and Admiralty Island. * WHEN...Until 9 PM AKST this evening. * IMPACTS...Travel by land, sea, and air will be be very difficult. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Through the afternoon and evening hours, a transition to a rain/snow mix, or even rain, is expected as a strong push of southerly winds moves northward. The southerly winds diminish in strength on Tuesday, allowing snow showers to return to the area.
Winter Storm Warning
...HEAVY SNOW CONTINUES FOR SOUTHEAST ALASKA THROUGH MONDAY... Snowfall is ongoing across much of the panhandle as a front pushes inland, with snowfall rates beginning to diminish in the wake of the front as snow showers replace the previously widespread snowfall. Heaviest snowfall rates will continue through Monday afternoon for locations along and north of the Icy Strait Corridor. An initial warmup moving up from the south has brought temperatures as far north as Hoonah and Pelican to 34 degrees. That warm up is expected to continue into the early morning hours of Tuesday, resulting in some locations changing over to a rain and rain/snow mix for areas along and south of the Icy Strait Corridor from Elfin Cove to Gustavus and Juneau. However, weakening winds combined with heavy snow showers on Tuesday will likely see a switch back to snow for most areas. Main forecast challenge on Tuesday will be the highly variable snowfall accumulations across the northern panhandle due to the hit or miss nature of the showers. The potential exists that warnings and advisories could be extended into Tuesday. * WHAT...Heavy snow. Additional snow accumulations of 2 to 4 inches. Highest snow accumulations expected out the road. Winds gusting as high as 35 mph. * WHERE...City and Borough of Juneau. * WHEN...Until 9 PM AKST this evening. * IMPACTS...Travel by land, sea, and air will be be very difficult. Reduced visibilities due to blowing snow. The hazardous conditions could impact the evening commute. * ADDITIONAL DETAILS...Through Monday night, a transition to a rain/snow mix, or even rain, is expected as a strong push of southerly winds moves northward.
Winter Storm Warning
...HEAVY SNOW RETURNS TO SOUTHEAST ALASKA ON MONDAY... .Prefrontal showers associated with a weak wave moved through the Icy Strait corridor and western Baranof Island has prompted the winter storm warning to be moved up in time. Snow ratios are very high, pushing greater than 30:1, therefore snow characteristic is very fluffy and dry with very little moisture. Once snow becomes increasingly wet, expect to see any snow depth gained from these snow showers reduced. Therefore, there is very little change in overall snow totals. A weather system will arrive late Sunday night and sweep into southeast Alaska, bringing heavy snowfall across the region on Monday. Heaviest snowfall rates are expected through Monday morning and into the afternoon. An initial warmup moving up from the south is expected through the afternoon and overnight hours on Monday, resulting in some locations changing over to a rain and rain/snow mix for areas along and south of the Icy Strait Corridor from Elfin Cove to Gustavus and Juneau. However, weakening winds combined with heavy snow showers on Tuesday will more than likely see a switch back to snow. Main forecast challenge on Tuesday will be the highly variable snowfall accumulations across the northern panhandle due to the hit or miss nature of the showers, warnings and advisories could be extended into Tuesday. * WHAT...Heavy snow. Additional snow accumulations of 4 to 15 inches. Winds gusting as high as 45 mph. * WHERE...City and Borough of Juneau. * WHEN...Until 9 PM AKST this evening. * IMPACTS...Travel by land, sea, and air will be be very difficult. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Highly variable accumulations of 1 to 5 inches have fallen in Juneau. The heaviest snow is expected by 9 am Monday through the afternoon. Through the evening and overnight hours on Monday, a transition to a rain/snow mix, or even rain, is expected as a strong push of southerly winds moves northward. The strongest wind gusts will occur as the southerly winds push northward. The southerly winds diminish in strength on Tuesday, allowing snow showers to return to the area. Main forecast challenge will be highly variable snowfall accumulations on Tuesday across the northern panhandle due to the hit or miss nature of the showers.
Winter Storm Warning
...HEAVY SNOW RETURNS TO SOUTHEAST ALASKA ON MONDAY... .Prefrontal showers associated with a weak wave moved through the Icy Strait corridor and western Baranof Island has prompted the winter storm warning to be moved up in time. Snow ratios are very high, pushing greater than 30:1, therefore snow characteristic is very fluffy and dry with very little moisture. Once snow becomes increasingly wet, expect to see any snow depth gained from these snow showers reduced. Therefore, there is very little change in overall snow totals. A weather system will arrive late Sunday night and sweep into southeast Alaska, bringing heavy snowfall across the region on Monday. Heaviest snowfall rates are expected through Monday morning and into the afternoon. An initial warmup moving up from the south is expected through the afternoon and overnight hours on Monday, resulting in some locations changing over to a rain and rain/snow mix for areas along and south of the Icy Strait Corridor from Elfin Cove to Gustavus and Juneau. However, weakening winds combined with heavy snow showers on Tuesday will more than likely see a switch back to snow. Main forecast challenge on Tuesday will be the highly variable snowfall accumulations across the northern panhandle due to the hit or miss nature of the showers, warnings and advisories could be extended into Tuesday. * WHAT...Heavy snow. Additional snow accumulations of 4 to 7 inches. Winds gusting as high as 40 mph. * WHERE...Glacier Bay, Eastern Chichagof Island, Cape Fairweather to Lisianski Strait and Admiralty Island. * WHEN...Until 9 PM AKST this evening. * IMPACTS...Travel by land, sea, and air will be be very difficult. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Approximately 5 inches of snow has fallen in Gustavus. The heaviest snow is expected by 9 am Monday through the afternoon. Through the morning and midday hours on Monday, a transition to a rain/snow mix, or even rain, is expected as a strong push of southerly winds moves northward. The strongest wind gusts will occur as the southerly winds push northward. The southerly winds diminish in strength on Tuesday, allowing snow showers to return to the area. Main forecast challenge will be highly variable snowfall accumulations on Tuesday across the northern panhandle due to the hit or miss nature of the showers.
Winter Storm Warning
...HEAVY SNOW RETURNS TO SOUTHEAST ALASKA ON MONDAY... .Prefrontal showers associated with a weak wave moving through the Icy Strait corridor and western Baranof Island has prompted the winter storm warning to be moved up in time. Snow ratios are very high, pushing greater than 30:1, therefore snow characteristic is very fluffy and dry with very little moisture. Once snow becomes increasingly wet, expect to see any snow depth gained from these snow showers reduced. Therefore, there is very little change in overall snow totals. A weather system will arrive late Sunday night and sweep into southeast Alaska, bringing heavy snowfall across the region on Monday. Heaviest snowfall rates are expected through Monday morning and into the afternoon. An initial warmup moving up from the south is expected through the afternoon and overnight hours on Monday, resulting in some locations changing over to a rain and rain/snow mix for areas along and south of the Icy Strait Corridor from Elfin Cove to Gustavus and Juneau. However, weakening winds combined with heavy snow showers on Tuesday will more than likely see a switch back to snow. Main forecast challenge on Tuesday will be the highly variable snowfall accumulations across the northern panhandle due to the hit or miss nature of the showers, warnings and advisories could be extended into Tuesday. * WHAT...Heavy snow. Additional snow accumulations of 7 to 10 inches. Winds gusting as high as 40 mph. * WHERE...Glacier Bay, Eastern Chichagof Island, Cape Fairweather to Lisianski Strait, and Admiralty Island. * WHEN...Until 9 PM AKST Monday. * IMPACTS...Travel by land, sea, and air will be be very difficult. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Approximately 5 inches of snow has fallen in Gustavus. The heaviest snow is expected by 9 am Monday through the afternoon. Through the evening and overnight hours on Monday, a transition to a rain/snow mix, or even rain, is expected as a strong push of southerly winds moves northward. The strongest wind gusts will occur as the southerly winds push northward. The southerly winds diminish in strength on Tuesday, allowing snow showers to return to the area. Main forecast challenge will be highly variable snowfall accumulations on Tuesday across the northern panhandle due to the hit or miss nature of the showers.
Winter Storm Warning
...HEAVY SNOW RETURNS TO SOUTHEAST ALASKA ON MONDAY... .Prefrontal showers associated with a weak wave moving through the Icy Strait corridor and western Baranof Island has prompted the winter storm warning to be moved up in time. Snow ratios are very high, pushing greater than 30:1, therefore snow characteristic is very fluffy and dry with very little moisture. Once snow becomes increasingly wet, expect to see any snow depth gained from these snow showers reduced. Therefore, there is very little change in overall snow totals. A weather system will arrive late Sunday night and sweep into southeast Alaska, bringing heavy snowfall across the region on Monday. Heaviest snowfall rates are expected through Monday morning and into the afternoon. An initial warmup moving up from the south is expected through the afternoon and overnight hours on Monday, resulting in some locations changing over to a rain and rain/snow mix for areas along and south of the Icy Strait Corridor from Elfin Cove to Gustavus and Juneau. However, weakening winds combined with heavy snow showers on Tuesday will more than likely see a switch back to snow. Main forecast challenge on Tuesday will be the highly variable snowfall accumulations across the northern panhandle due to the hit or miss nature of the showers, warnings and advisories could be extended into Tuesday. * WHAT...Heavy snow. Additional snow accumulations of 8 to 14 inches. Winds gusting as high as 30 mph. * WHERE...City and Borough of Juneau * WHEN...Until 9 PM AKST Monday. * IMPACTS...Travel by land, sea, and air will be be very difficult. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Highly variable accumulations of 1 to 5 inches have fallen in Juneau. The heaviest snow is expected by 9 am Monday through the afternoon. Through the evening and overnight hours on Monday, a transition to a rain/snow mix, or even rain, is expected as a strong push of southerly winds moves northward. The strongest wind gusts will occur as the southerly winds push northward. The southerly winds diminish in strength on Tuesday, allowing snow showers to return to the area. Main forecast challenge will be highly variable snowfall accumulations on Tuesday across the northern panhandle due to the hit or miss nature of the showers.