National Weather Service Notices

• Cold Weather Advisory issued January 23 at 10:27PM EST until January 24 at 10:00AM EST by NWS Baltimore MD/Washington DC
  * WHAT…Very cold wind chills as low as 5 below expected.
  
  
  * WHERE…In Maryland, Calvert, Charles, and St. Marys Counties. In
  Virginia, Albemarle, Greene, King George, Orange, Spotsylvania,
  and Stafford Counties.
  
  
  * WHEN…Until 10 AM EST Saturday.
  
  
  * IMPACTS…Wind chill values can lead to hypothermia with prolonged
  exposure.
• Winter Storm Warning issued January 23 at 5:16PM EST until January 26 at 4:00AM EST by NWS Baltimore MD/Washington DC…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 5 and 10 inches and ice accumulations around
  one quarter of an inch.
  
  
  * WHERE…Portions of southern Maryland and central 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.
  
  
  * 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.