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Philadelphia, United States
Click any image to view larger versionPast Weather Alerts
5 of 247Wind Advisory
* WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Portions of central a...
Dense Fog Advisory
* WHAT...Visibility one quarter to one half mile in dense fog. * WHERE...Portions of northern Delaw...
Special Weather Statement
Patchy fog, locally dense at times, will continue this morning. Visibilities at times will be less t...
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of northern Delaware,...
Dense Fog Advisory
* WHAT...Visibility less than one mile in dense fog. * WHERE...Portions of northern Delaware, centr...
Past Weather Alerts for Philadelphia
Wind Advisory
* WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Portions of central and southern Delaware and central, northern, and southern New Jersey. * WHEN...From 2 PM Monday to 2 AM EDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Dense Fog Advisory
* WHAT...Visibility one quarter to one half mile in dense fog. * WHERE...Portions of northern Delaware, northeast Maryland, central, northern, and southern New Jersey, and southeast Pennsylvania. * WHEN...From 2 AM to 10 AM EDT Tuesday. * IMPACTS...Low visibility could make driving conditions hazardous.
Special Weather Statement
Patchy fog, locally dense at times, will continue this morning. Visibilities at times will be less than one mile. If driving this morning, be prepared for rapidly changing conditions. Use caution when traveling by reducing your speed, turning on your low beam headlights, and following at a greater distance.
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of northern Delaware, central, northern, northwest, and southern New Jersey, and southeast Pennsylvania. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Dense Fog Advisory
* WHAT...Visibility less than one mile in dense fog. * WHERE...Portions of northern Delaware, central and southern New Jersey, and east central, northeast, and southeast Pennsylvania. * WHEN...Until 7 AM EDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Special Weather Statement
Patchy fog, locally dense at times, will continue across Northern New Castle County Delaware, parts of southeastern Pennsylvania, and central and southern New Jersey. Visibilities at times will be less than one-quarter of a mile. Use caution when traveling by reducing your speed and following at a greater distance.
Dense Fog Advisory
* WHAT...Visibility less than one mile in dense fog. * WHERE...Coastal area of Delaware and New Jersey. * WHEN...From 6 PM this evening to 10 AM EST Thursday. * IMPACTS...Low visibility could make driving conditions hazardous.
Blizzard Warning
...POTENTIALLY HISTORIC WINTER STORM WILL IMPACT THE REGION THROUGH MONDAY... .A major winter storm is expected to develop today, impacting the region with very heavy, crippling snowfall and areas of blizzard conditions. Precipitation will develop today, changing to all snow this afternoon and evening. The most severe conditions and heaviest snowfall will occur tonight, with snow gradually tapering off during the daytime Monday. Record breaking snowfall totals are possible. * WHAT...Blizzard conditions expected. Total snow accumulations between 20 and 28 inches. Winds gusting as high as 60 mph. * WHERE...Eastern Monmouth, Western Monmouth, Coastal Ocean, Ocean, and Southeastern Burlington Counties. * WHEN...From 10 AM this morning to 6 PM EST Monday. * IMPACTS...Travel could be very difficult to impossible. Widespread blowing snow could significantly reduce visibility. The hazardous conditions will impact the Monday morning and evening commutes. Strong winds could cause tree damage and scattered power outages. * ADDITIONAL DETAILS...Snowfall rates could exceed 2 inches per hour. Locally higher snowfall amounts and significant drifting of snow possible.
Winter Storm Warning
...POTENTIALLY HISTORIC WINTER STORM WILL IMPACT THE REGION THROUGH MONDAY... .A major winter storm is expected to develop today, impacting the region with very heavy, crippling snowfall and areas of blizzard conditions. Precipitation will develop today, changing to all snow this afternoon and evening. The most severe conditions and heaviest snowfall will occur tonight, with snow gradually tapering off during the daytime Monday. Record breaking snowfall totals are possible. * WHAT...Heavy snow expected. Total snow accumulations between 16 and 22 inches. Winds gusting as high as 40 mph. * WHERE...Eastern Chester, Western Chester, and Western Montgomery Counties. * WHEN...Until 6 PM EST Monday. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions will impact the Monday morning and evening commutes. Gusty winds could bring down tree branches and result in isolated power outages. * ADDITIONAL DETAILS...Snowfall rates could exceed 2 inches per hour. Locally higher snowfall amounts possible. Blowing and drifting of snow, and whiteout conditions possible.
Blizzard Warning
...POTENTIALLY HISTORIC WINTER STORM WILL IMPACT THE REGION THROUGH MONDAY... .A major winter storm is expected to develop today, impacting the region with very heavy, crippling snowfall and areas of blizzard conditions. Precipitation will develop today, changing to all snow this afternoon and evening. The most severe conditions and heaviest snowfall will occur tonight, with snow gradually tapering off during the daytime Monday. Record breaking snowfall totals are possible. * WHAT...Blizzard conditions expected. Total snow accumulations between 16 and 22 inches. Winds gusting as high as 45 mph. * WHERE...Portions of southern New Jersey and southeast Pennsylvania. * WHEN...From 10 AM this morning to 6 PM EST Monday. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions will impact the Monday morning and evening commutes. Gusty winds could bring down tree branches and result in isolated power outages. * ADDITIONAL DETAILS...Snowfall rates could exceed 2 inches per hour. Locally higher snowfall amounts and significant drifting of snow possible.
Blizzard Warning
...POTENTIALLY HISTORIC WINTER STORM WILL IMPACT THE REGION THROUGH MONDAY... .A major winter storm is expected to develop today, impacting the region with very heavy, crippling snowfall and areas of blizzard conditions. Precipitation will develop today, changing to all snow this afternoon and evening. The most severe conditions and heaviest snowfall will occur tonight, with snow gradually tapering off during the daytime Monday. Record breaking snowfall totals are possible. * WHAT...Blizzard conditions expected. Total snow accumulations between 18 and 25 inches. Winds gusting as high as 45 mph. * WHERE...Portions of central, northern, and northwest New Jersey. * WHEN...Until 6 PM EST Monday. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions will impact the Monday morning and evening commutes. Gusty winds could bring down tree branches and result in isolated power outages. * ADDITIONAL DETAILS...Snowfall rates could exceed 2 inches per hour. Locally higher snowfall amounts and significant drifting of snow possible.
Coastal Flood Warning
* WHAT...One to two feet of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Ocean, Atlantic, Cape May, Atlantic Coastal Cape May, Coastal Atlantic, Coastal Ocean and Southeastern Burlington. * WHEN...From 9 PM this evening to 5 AM EST Monday. * IMPACTS...At this level, widespread roadway flooding occurs in coastal and bayside communities and along inland tidal waterways. Many roads become impassable. Some damage to vulnerable structures may begin to occur. With any major flooding, flooding may become severe enough to cause more significant structural damage and some locations may become isolated by the flood waters. * ADDITIONAL DETAILS...Widespread minor to near moderate coastal flooding likely with the Monday afternoon high tide. Tidal flooding may also occur with the Monday night high tide.
Coastal Flood Warning
* WHAT...One to two feet of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Ocean, Atlantic, Cape May, Atlantic Coastal Cape May, Coastal Atlantic, Coastal Ocean and Southeastern Burlington. * WHEN...From 9 PM Sunday to 5 AM EST Monday. * IMPACTS...At this level, widespread roadway flooding occurs in coastal and bayside communities and along inland tidal waterways. Many roads become impassable. Some damage to vulnerable structures may begin to occur. * ADDITIONAL DETAILS...Additional coastal flooding may linger into Monday afternoon's high tide cycles.
Winter Storm Warning
* WHAT...Heavy snow expected. Total snow accumulations between 14 and 18 inches. Winds gusting as high as 40 mph. * WHERE...A portion of southeast Pennsylvania. * WHEN...From 7 AM Sunday to 6 PM EST Monday. * IMPACTS...Travel could be very difficult to impossible. Some blowing snow is likely which could reduce visibility. The hazardous conditions could impact the Monday morning and evening commutes.
Blizzard Warning
* WHAT...Blizzard conditions expected. Total snow accumulations between 14 and 20 inches. Winds gusting as high as 45 mph. * WHERE...In Delaware, Kent County. In New Jersey, Camden, Cumberland, Gloucester, and Northwestern Burlington Counties. * WHEN...From 10 AM Sunday to 6 PM EST Monday. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning and evening commutes. Gusty winds could bring down tree branches.
Coastal Flood Watch
* WHAT...One to two feet of inundation above ground level possible in low-lying areas near shorelines and tidal waterways. * WHERE...Ocean, Atlantic, Cape May, Atlantic Coastal Cape May, Coastal Atlantic, Coastal Ocean and Southeastern Burlington. * WHEN...From Sunday evening through late Sunday night. * IMPACTS...At this level, widespread roadway flooding occurs in coastal and bayside communities and along inland tidal waterways. Many roads become impassable. Some damage to vulnerable structures may begin to occur. * ADDITIONAL DETAILS...Additional coastal flooding may linger into Monday's high tide cycles.
Winter Storm Watch
* WHAT...Heavy snow, with total snow accumulations exceeding 5 inches possible. Winds could gust as high as 35 mph. * WHERE...Portions of central, northern, and southern Delaware and northeast Maryland. * WHEN...From Sunday afternoon through Monday afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning and evening commutes.
Winter Storm Watch
* WHAT...Heavy snow, with total snow accumulations exceeding 6 inches possible. Winds could gust as high as 35 mph. * WHERE...Portions of central, northern, northwest, and southern New Jersey. * WHEN...From Sunday morning through Monday afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning and evening commutes.
Winter Storm Watch
* WHAT...Heavy snow, with total snow accumulations exceeding 6 inches possible. Winds could gust as high as 35 mph. * WHERE...Portions of east central, northeast, and southeast Pennsylvania. * WHEN...From Sunday morning through Monday afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning and evening commutes.
Air Quality Alert
The New Jersey Department of Environmental Protection has issued a Code Orange Air Quality Action Day for Fine Particulates, until midnight EST tonight. An Air Quality Advisory means that air quality within the region may approach or exceed unhealthy standards. For more information on current and forecast concentrations of ground-level ozone and fine particulates, visit www.airnow.gov or www.state.nj.us/dep/airmon/ or call the New Jersey Bureau of Air Monitoring at 609-292-0138
Air Quality Alert
The Delaware Valley Regional Planning Commission has issued a code orange air quality alert Wednesday for The Philadelphia Metro area. A code orange air quality alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children...people suffering from asthma... heart disease or other lung diseases...and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles...visit http://www.phila.gov/health/units/ams/
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Ocean and Coastal Ocean. * WHEN...From 5 AM to noon EST Sunday. * IMPACTS...At this level, flooding begins on the most vulnerable roads in coastal and bayside communities, and along inland tidal waterways. Some partial or full road closures are possible. * ADDITIONAL DETAILS...Minor coastal flooding may linger near the times of high tide through Monday. The highest water levels and greatest impacts are forecast to occur during the Sunday morning high tide, when isolated Moderate coastal flood impacts are possible along the back bays. Ice from the back bays could get pushed onshore during high tide, and flood waters could freeze on roadways, further complicating impacts.
Coastal Flood Advisory
* WHAT...Up to one foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Atlantic, Cape May, Atlantic Coastal Cape May, Coastal Atlantic and Southeastern Burlington. * WHEN...From 5 AM to noon EST Sunday. * IMPACTS...At this level, flooding begins on the most vulnerable roads in coastal and bayside communities, and along inland tidal waterways. Some partial or full road closures are possible. * ADDITIONAL DETAILS...Minor coastal flooding may linger near the times of high tide through Monday. The highest water levels and greatest impacts are forecast to occur during the Sunday morning high tide, when isolated Moderate coastal flood impacts are possible along the back bays. Ice from the back bays could get pushed onshore during high tide, and flood waters could freeze on roadways, further complicating impacts.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 15 below. * WHERE...Portions of central, northern, and northwest New Jersey and east central and southeast Pennsylvania. * WHEN...Until 10 AM EST Sunday. * IMPACTS...The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 10 below. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central and southern New Jersey, and southeast Pennsylvania. * WHEN...Until 10 AM EST Sunday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 10 below. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central, northern, northwest, and southern New Jersey, and southeast Pennsylvania. * WHEN...Until 10 AM EST Saturday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 10 below. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central, northern, northwest, and southern New Jersey, and southeast Pennsylvania. * WHEN...Until 11 AM EST Friday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 10 below. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central, northern, northwest, and southern New Jersey, and southeast Pennsylvania. * WHEN...Until 10 AM EST Friday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. * ADDITIONAL DETAILS...Dangerously cold wind chills and or temperatures are expected through tonight.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 20 below. * WHERE...Portions of central, northern, and northwest New Jersey and east central and southeast Pennsylvania. * WHEN...Until 10 AM EST Friday. * IMPACTS...The dangerously cold wind chills as low as 20 below zero could result in hypothermia or frostbite if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. * ADDITIONAL DETAILS...Dangerously cold wind chills and or temperatures are expected through tonight.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 10 below. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central and southern New Jersey, and southeast Pennsylvania. * WHEN...Until 10 AM EST Friday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. * ADDITIONAL DETAILS...Dangerously cold wind chills and or temperatures are expected through tonight.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 8 below. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central and southern New Jersey, and southeast Pennsylvania. * WHEN...Until 10 AM EST Thursday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 12 below. * WHERE...Portions of central, northern, and northwest New Jersey and east central and southeast Pennsylvania. * WHEN...Until 10 AM EST Thursday. * IMPACTS...The cold wind chills as low as 15 below zero could result in hypothermia or frostbite if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 8 below. * WHERE...Portions of Delaware, northeast Maryland, southern New Jersey, and southeast Pennsylvania. * WHEN...Until 10 AM EST Wednesday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 10 below. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central and southern New Jersey, and southeast Pennsylvania. * WHEN...Until 10 AM EST Wednesday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 10 below. * WHERE...Portions of central, northern, and northwest New Jersey and east central and southeast Pennsylvania. * WHEN...Until 10 AM EST Wednesday. * IMPACTS...The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken.
Cold Weather Advisory
* WHAT...Very cold wind chills as between 5 and 10 degrees below zero expected. * WHERE...Portions of central, northern, and northwest New Jersey and east central and southeast Pennsylvania. * WHEN...From 7 PM this evening to 10 AM EST Wednesday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. * ADDITIONAL DETAILS...Extensions to the Cold Weather Advisory are expected and could be upgraded to an Extreme Cold Warning for Wednesday night and/or Thursday Night. Wind chills below zero and even 10 below zero at night are likely to continue into the weekend.
Cold Weather Advisory
* WHAT...Very cold wind chills between 0 and 10 degrees below zero. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central and southern New Jersey, and southeast Pennsylvania. * WHEN...From 7 PM this evening to 10 AM EST Wednesday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. * ADDITIONAL DETAILS...Extensions to the Cold Weather Advisory are expected and could be upgraded to an Extreme Cold Warning for Wednesday night and/or Thursday Night. Wind chills below zero at night are likely to continue into the weekend.
Winter Storm Watch
* WHAT...Heavy snow with sleet and freezing rain possible. Total snow accumulations between 11 and 15 inches and ice accumulations up to two tenths of an inch possible. * WHERE...Portions of Delaware, northeast Maryland, southern New Jersey, and southeast Pennsylvania. * WHEN...From Saturday evening through Monday afternoon. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning commute.
Winter Storm Warning
* WHAT...Heavy snow and mixed precipitation. Additional snow and sleet accumulations between 2 and 8 inches and ice accumulations around two tenths of an inch. * WHERE...Portions of central, northern, northwest, and southern New Jersey and southeast Pennsylvania. * WHEN...Until 1 PM EST Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...Around 4 to 6 inches have already fallen. Snowfall rates of 1 to 2 inches per hour continue into the early afternoon. The snow will mix with and change to sleet and areas of freezing rain Sunday afternoon into Sunday evening.
Winter Storm Warning
* WHAT...Heavy mixed precipitation. Additional snow and sleet accumulations between 1 and 3 inches and ice accumulations up to two tenths of an inch. * WHERE...Portions of central, northern, and southern Delaware and northeast Maryland. * WHEN...Until 1 PM EST Monday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...Around 4 to 6 inches of snow have already fallen. Additional accumulations will come predominantly from sleet before mixing with freezing rain this afternoon then to a period of plain rain for some areas Sunday afternoon and evening.
Winter Storm Warning
* WHAT...Heavy snow and mixed precipitation. Additional snow and sleet accumulations between 3 and 5 inches and ice accumulations up to one tenth of an inch. * WHERE...Portions of central and southern New Jersey. * WHEN...Until 7 AM EST Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...Around 3 to 5 inches of snow have already fallen. Snowfall rates of 1 to 2 inches per hour continue late this morning, then the snow mixes with and changes to sleet and freezing rain then to a period of plain rain this afternoon and evening.
Winter Storm Warning
* WHAT...Heavy snow and mixed precipitation. Additional snow and sleet accumulations between 5 and 8 inches and ice accumulations up to two tenths of an inch. * WHERE...Portions of central, northern, and southern Delaware and northeast Maryland. * WHEN...Until 1 PM EST Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...Snowfall rates of 1 to 2 inches per hour this morning, then the snow mixes with and changes to sleet and freezing rain then to a period of plain rain for some areas Sunday afternoon and evening.