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Big Mountain, United States
Click any image to view larger versionPast Weather Alerts
5 of 47Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations between 2 and 5 inches. Winds gusting as high as ...
Winter Weather Advisory
* WHAT...Snow. Additional snow accumulations up to one inch. Winds gusting as high as 40 mph. * WHE...
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations up to two inches. Winds gusting as high as 45 mph...
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations between 2 and 8 inches. Winds gusting as high as ...
Winter Storm Warning
* WHAT...Heavy snow expected. Total snow accumulations between 3 and 6 inches for the lower elevatio...
Past Weather Alerts for Big Mountain
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations between 2 and 5 inches. Winds gusting as high as 40 mph. * WHERE...A portion of central Pennsylvania. * WHEN...Until 1 PM EST Monday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...Much of the accumulation will occur tonight, with snow tapering off Monday morning. Locally higher snowfall totals are possible in the ridgetops.
Winter Weather Advisory
* WHAT...Snow. Additional snow accumulations up to one inch. Winds gusting as high as 40 mph. * WHERE...A portion of central Pennsylvania. * WHEN...Until 1 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday morning commute.
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations up to two inches. Winds gusting as high as 45 mph. * WHERE...Lancaster, Lebanon, and Schuylkill Counties. * WHEN...Until 1 PM EST this afternoon. * IMPACTS...The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Plan on slippery road conditions. The hazardous conditions could impact the Monday morning commute. Gusty winds could bring down tree branches.
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations between 2 and 8 inches. Winds gusting as high as 40 mph. * WHERE...Dauphin, Lancaster, Lebanon, Schuylkill, and York Counties. * WHEN...Until 1 PM EST Monday. * IMPACTS...The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Travel could be very difficult. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...Rain is currently transitioning to snow across the Lower Susquehanna Valley. Snow will begin to accumulate as temperatures fall tonight. The heaviest snow totals are expected to the east, with lesser amounts to the west. Much of the accumulating snow will be winding down by Monday morning.
Winter Storm Warning
* WHAT...Heavy snow expected. Total snow accumulations between 3 and 6 inches for the lower elevations. For elevations elevations above 1000 feet, snow accumulations of 6 to 8 inches are expected with localized amounts around a foot on the ridge tops of the Catoctin Mountains. Northwest winds gusting around 30 to 45 mph overnight through Monday. * WHERE...Portions of central and north central Maryland, northern and northwest Virginia, and panhandle West Virginia. * WHEN...Until 10 AM EST Monday. Rain or a rain and snow mix will change to snow between 4 PM and 6 PM late this afternoon and evening. The steadiest snow will be this evening before tapering off overnight into early Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the Monday morning commute. * ADDITIONAL DETAILS...Visibility will be reduced to below one-half mile at times in falling and blowing snow overnight into Monday morning.
Winter Storm Warning
* WHAT...Heavy snow expected. Total snow accumulations between 5 and 10 inches. Locally higher amounts around a foot are possible in northeast Maryland. Northwest winds gusting between 30 and 45 mph overnight through Monday. Rain or a rain and snow mix will change to snow between 4 PM and 6 PM late this afternoon and evening. The steadiest snow will continue through tonight before tapering off Monday. * WHERE...Portions of central, north central, northeast, northern, and southern Maryland. * WHEN...Until 10 AM EST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions will impact the Monday morning commute.
Winter Storm Watch
* WHAT...Heavy snow possible. Total snow accumulations between 5 and 8 inches possible. Winds could gust as high as 35 mph late Sunday night and Monday. * WHERE...Cumberland and Perry Counties. * WHEN...From late tonight through Monday afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute.
Winter Storm Watch
* WHAT...Heavy snow possible. Total snow accumulations between 5 and 10 inches possible. Winds could gust as high as 35 mph Sunday night and Monday. * WHERE...A portion of central Pennsylvania. * WHEN...From late tonight through Monday afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...There is still some uncertainty regarding the track of this storm. Any westward shifts in the track may result in higher snowfall amounts.
Winter Storm Watch
* WHAT...Heavy snow possible. Total snow accumulations of 5 or more inches possible. Winds could gust as high as 35 mph. * WHERE...Portions of central, north central, northeast, northern, and southern Maryland and northern Virginia. * WHEN...From Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute.
Winter Storm Watch
* WHAT...Heavy snow possible. Total snow accumulations of 5 inches or more are possible. * WHERE...Portions of central, north central, northeast, and northern Maryland and northern Virginia. * WHEN...From Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult, especially Sunday night into Monday morning. The hazardous conditions could impact the Monday morning commute.
Winter Storm Watch
* WHAT...Heavy snow possible. Total snow accumulations between 4 and 6 inches possible. * WHERE...A portion of central Pennsylvania. * WHEN...From late Saturday night through Monday afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...There is still some uncertainty regarding the track of this storm. Any westward shifts in the track may result in higher snowfall amounts.
Air Quality Alert
The Pennsylvania Department of Environmental Protection has issued a Code ORANGE Air Quality Alert on Thursday for the Susquehanna Valley. 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.airnow.gov and http://www.aqpartners.state.pa.us.
Special Weather Statement
Locally dense fog will reduce visibility to a quarter mile or less in spots through the mid morning hours today. If traveling, be prepared for changes in visibility over a short distance especially on ridgetops or in river and stream valleys. The fog will dissipate and visibility will steadily improve by 10 AM EST.
Air Quality Alert
The Pennsylvania Department of Environmental Protection has issued a Code ORANGE Air Quality Alert on Wednesday for the Susquehanna Valley. 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.airnow.gov and http://www.aqpartners.state.pa.us.
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Lancaster and York Counties. * WHEN...Until 10 AM EST Wednesday. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...At 8 PM, dense fog was reported near the Pennsylvania-Maryland border. Dense fog is expected to expand northward tonight.
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Anne Arundel, Central and Southeast Howard, Northwest Howard, Carroll, Cecil, Northern Baltimore, Northwest Harford, Southeast Harford, and Southern Baltimore Counties. * WHEN...Until 10 AM EST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Cecil, Northern Baltimore, Northwest Harford, Southeast Harford, and Southern Baltimore Counties. * WHEN...Until 10 AM EST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Anne Arundel, Central and Southeast Howard, Northwest Howard, and Carroll Counties. * WHEN...Until 10 AM EST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 18 below zero expected. * WHERE...A portion of central Pennsylvania. * WHEN...Until 10 AM EST Sunday. * IMPACTS...The dangerously cold wind chills as low as 18 below zero could result in hypothermia or frostbite if precautions are not taken.
Cold Weather Advisory
* WHAT...Very cold wind chills of 0 to 12 below. * WHERE...Washington DC, and portions of central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...From 10 PM this evening to 1 PM EST Sunday. * IMPACTS...The cold weather could result in hypothermia or frostbite if precautions are not taken.
Cold Weather Advisory
* WHAT...Very cold wind chills of 8 below to 16 below in the valleys, and 10 below to 20 below on the ridges. * WHERE...Portions of north-central and western Maryland, northwest Virginia, and eastern West Virginia. * WHEN...From 10 PM this evening to 1 PM EST Sunday. * IMPACTS...The cold weather could result in hypothermia or frostbite if precautions are not taken.
Cold Weather Advisory
* WHAT...Very cold wind chills of 0 to 15 below. * WHERE...In Maryland, Carroll, Frederick MD, and Washington Counties. In West Virginia, Berkeley, Jefferson, and Morgan Counties. * WHEN...From 10 PM this evening to 1 PM EST Sunday. * IMPACTS...The cold weather could result in hypothermia or frostbite if precautions are not taken.
Cold Weather Advisory
* WHAT...Very cold wind chills of 0 to 10 below. * WHERE...Washington DC, and portions of central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...From 10 PM this evening to 1 PM EST Sunday. * IMPACTS...The cold weather could result in hypothermia or frostbite if precautions are not taken.
Cold Weather Advisory
* WHAT...For the Cold Weather Advisories, very cold wind chills as low as 16 below. * WHERE...A portion of central Pennsylvania. * WHEN...For the first Cold Weather Advisory, until 11 AM EST this morning. For the second Cold Weather Advisory, from 7 PM this evening to 10 AM EST Sunday. * IMPACTS...The cold wind chills as low as 16 below zero could result in hypothermia or frostbite if precautions are not taken.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 20 below expected. * WHERE...A portion of central Pennsylvania. * WHEN...Until 11 AM EST Saturday. * IMPACTS...The cold wind chills as low as 20 below zero could result in hypothermia or frostbite if precautions are not taken. * ADDITIONAL DETAILS...Dangerously cold wind chills are possible again Saturday night into Sunday morning. Additional Cold Weather Advisories may be needed.
Cold Weather Advisory
* WHAT...Very cold wind chills 10 to 19 degrees below zero expected. * WHERE...A portion of central Pennsylvania. * WHEN...From 7 PM this evening to 10 AM EST Saturday. * IMPACTS...The cold wind chills as low as 19 below zero could result in hypothermia or frostbite if precautions are not taken. * ADDITIONAL DETAILS...Dangerously cold wind chills are possible again Saturday night into Sunday morning. Additional Cold Weather Advisories may be needed.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 5 below expected. * WHERE...Washington DC, and portions of central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...From 8 PM this evening to 11 AM EST Saturday. * IMPACTS...Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. Wind chill values can lead to hypothermia with prolonged exposure.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 10 below expected. * WHERE...In Maryland, Carroll, Frederick MD, and Washington Counties. In West Virginia, Berkeley, Jefferson, and Morgan Counties. * WHEN...From 7 PM this evening to 11 AM EST Saturday. * IMPACTS...Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. Wind chill values can lead to hypothermia with prolonged exposure.
Winter Storm Warning
...MAJOR WINTER STORM WILL IMPACT CENTRAL PENNSYLVANIA THROUGH MONDAY MORNING... .A large area of snowfall is expected to continue across the Mid-Atlantic through Monday morning with significant snowfall expected across all of central Pennsylvania. Snowfall rates exceeding one inch per hour are expected with rates potentially exceeding two inches per hour in the heaviest snow this morning and afternoon. Ice and sleet is possible south of the Pennsylvania Turnpike this afternoon and evening. In addition to the significant snow accumulations, very cold temperatures are expected through the end of the week with periods of sub-zero wind chills likely at times. * WHAT...Heavy snow, mixing with or possibly changing to sleet this afternoon and evening, especially south of the Turnpike. Total snow and sleet accumulations between 9 and 12 inches, possibly topped by light glazing of ice. * WHERE...A portion of central Pennsylvania. * WHEN...Until 1 PM EST Monday. * IMPACTS...Travel could be very difficult to impossible. Widespread and prolonged travel disruptions are expected. * ADDITIONAL DETAILS...Snow is expected to be heavy at times today with accumulation rates of one to two inches per hour at times. Snow may mix with or even change to sleet near and south of the Pennsylvania Turnpike this afternoon and evening, which may cut down on total snow accumulations. Frigid temperatures and wind chills are expected during and after the winter storm. Some blowing and drifting snow is possible.
Winter Storm Warning
...MAJOR WINTER STORM WILL IMPACT THE REGION THROUGH SUNDAY EVENING... .A large area of precipitation will overrun Arctic air in place over the Mid-Atlantic. This will lead to widespread significant snow, with the potential for ice today especially south of Highway 50 and near and east of Interstate 95. In addition to the high threat for significant snow and ice, very cold temperatures are expected tonight through the middle of next week with sub-zero wind chills likely at times. * WHAT...Heavy mixed precipitation expected. Total snow and sleet accumulations between 10 and 14 inches, with up to 18 inches possible near the Mason-Dixon line. Ice accumulations up to a tenth of an inch, mainly across the northern Shenandoah Valley. * WHERE...Portions of north central and western Maryland, northern and northwest Virginia, and eastern and panhandle West Virginia. * WHEN...Until 4 AM EST Monday. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...Snow will continue this morning, becoming heavy at times with rates of around one inch per hour possible at times. A mix with sleet or freezing rain is expected later this morning and into the afternoon. Visibility of one-quarter mile or less is possible at times. A prolonged period of very cold wind chills continues this evening and lasting through the middle of next week.
Winter Storm Warning
...MAJOR WINTER STORM WILL IMPACT THE REGION THROUGH SUNDAY EVENING... .A large area of precipitation will overrun Arctic air in place over the Mid-Atlantic. This will lead to widespread significant snow, with the potential for ice today especially south of Highway 50 and near and east of Interstate 95. In addition to the high threat for significant snow and ice, very cold temperatures are expected tonight through the middle of next week with sub-zero wind chills likely at times. * WHAT...Heavy mixed precipitation expected. Total snow and sleet accumulations between 6 and 10 inches, with up to 12 inches possible, especially in the far northern and western suburbs of Washington and Baltimore. Ice accumulations between one and two tenths of an inch. * WHERE...DC, central, northeast, and northern Maryland, and northern Virginia. * WHEN...Until 4 AM EST Monday. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...Snow will continue today, heavy at times with rates of around one inch per hour possible at times. A mix with sleet or freezing rain is later this morning and into the afternoon. Significant icing is possible especially south of Highway 50. Visibility of one-quarter mile or less is possible at times. A prolonged period of wind chills in the single digits and teens continues this evening and lasting through the middle of next week, with sub-zero wind chills possible at times.
Winter Storm Warning
* WHAT...Heavy snow expected. Total snow accumulations between 10 and 18 inches. * WHERE...A portion of central Pennsylvania. * WHEN...From 10 PM Saturday to 1 PM EST Monday. * IMPACTS...Travel could be very difficult to impossible. Widespread and prolonged travel disruptions are expected. * ADDITIONAL DETAILS...Snow will overspread the area late Saturday evening into Saturday night, becoming heavy at times through Sunday with accumulation rates of one to two inches per hour at times. Snow may mix with sleet or freezing rain near and south of the Pennsylvania Turnpike on Sunday afternoon, which may cut down on total snow accumulations. Frigid temperatures and wind chills are expected before, during, and after the winter storm. Some blowing and drifting snow is possible.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 10 below expected. * WHERE...Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon, Perry, Schuylkill, and York Counties. * WHEN...Until 10 AM EST Saturday. * IMPACTS...The cold wind chills could result in frostbite and hypothermia if precautions are not taken.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 9 below expected. * WHERE...Portions of DC, central, northeast, and northern Maryland, and central, northern, northwest, and western Virginia. * WHEN...Until 10 AM EST Saturday. * IMPACTS...Wind chill values can lead to hypothermia with prolonged exposure.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 19 below expected. * WHERE...Portions of north central and western Maryland, central, northwest, and western Virginia, and eastern and panhandle West Virginia. * 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. Very cold temperatures can lead to hypothermia with prolonged exposure.
Winter Storm Warning
...MAJOR WINTER STORM WILL IMPACT THE REGION SATURDAY EVENING THROUGH SUNDAY EVENING... .A large area of precipitation will overrun Arctic air in place over the Mid-Atlantic. This will lead to widespread significant snow beginning Saturday evening, with the potential for ice Sunday especially south of Highway 50 and near and east of Interstate 95. In addition to the high threat for significant snow and ice, very cold temperatures are expected tonight through the middle of next week with sub-zero wind chills likely at times. * WHAT...Heavy mixed precipitation expected. Total snow and sleet accumulations between 10 and 16 inches, with highest amounts north and west of US-340. Ice accumulations up to two tenths of an inch, mainly south and east of US-340. * WHERE...Portions of north central and western Maryland, northern and northwest Virginia, and eastern and panhandle West Virginia. * WHEN...From 11 PM Saturday to 4 AM EST Monday. * IMPACTS...Travel could be very difficult to impossible. * ADDITIONAL DETAILS...Snow will likely overspread the area Saturday night, becoming heavy at times with rates of one to two inches per hour possible at times. A mix with sleet or freezing rain is expected Sunday. Visibility of one-quarter mile or less is possible at times. A prolonged period of very cold wind chills is likely beginning this evening and lasting through the middle of next week.
Winter Storm Warning
...MAJOR WINTER STORM WILL IMPACT THE REGION SATURDAY EVENING THROUGH SUNDAY EVENING... .A large area of precipitation will overrun Arctic air in place over the Mid-Atlantic. This will lead to widespread significant snow beginning Saturday evening, with the potential for ice Sunday especially south of Highway 50 and near and east of Interstate 95. In addition to the high threat for significant snow and ice, very cold temperatures are expected tonight through the middle of next week with sub-zero wind chills likely at times. * WHAT...Heavy mixed precipitation expected. Total snow and sleet accumulations between 7 and 14 inches, with highest in the far northern and western suburbs of Washington and Baltimore. Ice accumulations between one and two tenths of an inch. * WHERE...Portions of DC, central, northeast, and northern Maryland, and northern Virginia. * WHEN...From 11 PM Saturday to 4 AM EST Monday. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...Snow will likely overspread the area Saturday night, becoming heavy at times with rates of one to two inches per hour possible at times. A mix with sleet or freezing rain is expected Sunday. Significant icing is possible especially south of Highway 50. Visibility of one-quarter mile or less is possible at times. A prolonged period of wind chills in the teens and single digits is likely beginning this evening and lasting through the middle of next week, with sub-zero wind chills possible at times.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 10 below expected. * WHERE...Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon, Perry, Schuylkill, and York Counties. * WHEN...From 10 PM this evening to 10 AM EST Saturday. * IMPACTS...The cold wind chills could result in frostbite and hypothermia if precautions are not taken.
Winter Storm Warning
...MAJOR WINTER STORM THIS WEEKEND... * WHAT...Heavy snow expected. Total snow accumulations between 10 and 18 inches. * WHERE...A portion of south central Pennsylvania. * WHEN...From 10 PM Saturday to 1 PM EST Monday. * IMPACTS...Travel could be very difficult to impossible. Widespread and prolonged travel disruptions are expected. * ADDITIONAL DETAILS...Snow will overspread the area late Saturday evening into Saturday night, becoming heavy at times through Sunday with accumulation rates of one to two inches per hour at times. Snow may mix with sleet or freezing rain near and south of the Pennsylvania Turnpike on Sunday afternoon, which may cut down on total snow accumulations. Frigid temperatures and wind chills are expected before, during, and after the winter storm. Some blowing and drifting snow is possible.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 9 below expected. * WHERE...Portions of DC, central, northeast, and northern Maryland, and central, northern, northwest, and western Virginia. * WHEN...From 8 PM this evening to 10 AM EST Saturday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. Wind chill values can lead to hypothermia with prolonged exposure.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 19 below expected. * WHERE...Portions of north central and western Maryland, central, northwest, and western Virginia, and eastern and panhandle West Virginia. * WHEN...From 8 PM this evening to 10 AM EST Saturday. * 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. Very cold temperatures can lead to hypothermia with prolonged exposure.
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 13 below expected. * WHERE...Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon, Perry, Schuylkill, and York Counties. * WHEN...From 10 PM this evening to 10 AM EST Saturday. * IMPACTS...The cold wind chills approaching 15 below zero could result in hypothermia if precautions are not taken.