UPDATED Tuesday, 11:40 a.m.: Snowy roadways and frigid temperatures are creating treacherous commutes for many drivers and walkers Tuesday morning.
Bitter cold temperatures moved in overnight, freezing all the snow that fell Monday.
Many road continue to be covered in snow and slush, especially ramps and side streets. Snow-covered sidewalks are pushing pedestrians into the street, creating arduous travel conditions for both drivers and pedestrians.
"Having snow in March is not unusual, but having snow with an arctic air mass entrenched across our area in March, that is unusual…or at least fairly rare," says ABC7 Meteorologist Brian van de Graaff.
Temperatures plummeted into the single digits in the early morning and some areas reached record lows. Baltimore-Washington International Thurgood Marshall Airport broke a 141-year-old record low temperature, reaching 4 degrees.
The record-challenging cold that started Tuesday morning is making the roads even worse. The snow on the ground has frozen, meaning lots of slick spots to start the day.
There will be plenty of sunshine for the next couple of days, but temperatures will remain well below average. Many areas will not climb out of the 20s Tuesday.
For Wednesday, expect partly cloudy skies and continued cold with highs in the 30s.
The federal government and D.C. government will open on a two-hour delay.
Several area school systems will be closed Tuesday. Read the full list of closings and delays on WTOP.com.
There are no major traffic delays at this time. For the latest traffic updates, follow @WTOPTraffic on Twitter.
Officials are still asking drivers to stay off the roads if possible. Many roads are covered in snow and slush, which has turned into ice -- especially on ramps and side streets.
Some highways in the region have been cleared and are in good condition.
Below are some notes for commuters:
All three area airports are open, but all are warning of delays and cancellations and advise travelers to check with their airlines before heading to the airport.
Hear the latest on weather and road conditions on WTOP.com.
Dominion Virginia Power's Chuck Bell tells WTOP the power company has crews ready to respond to power outages as the winter storm moves through the area. Dominion has staged resources and personnel across the region and additional assistance will be arriving from the Richmond area.
If you lose power, please alert your power company as soon as possible, even if you think your neighbor already has called.
Reagan National Airport is quiet this morning as the word "canceled" flashes across reader boards, WTOP's Nick Ianelli reports. Airlines have canceled thousands of flights across the Eastern United States due to this winter storm. Check with your airline before you leave for the airport today.
A Snow Emergency Declaration means that parking is prohibited along routes signed and marked as a “Snow Emergency Route.” Vehicles parked on emergency routes will be ticketed and towed. During a Snow Emergency, vehicles on the road must have all-weather or snow tires or chains. Residents are asked to move vehicles off-street if at all possible so snowplows can remove snow more efficiently. Taxicabs operating in Montgomery County during declared snow emergencies are allowed to charge $2.50 extra per trip.
All County parking lots and garages will offer free parking beginning at midnight tonight through Monday.
All Metrobus service (all routes, all lines) will be suspended Monday morning due to expected hazardous weather conditions.
Metro's Emergency Operations Center will monitor weather and road conditions during the day on Monday to determine when service may be restored. Bus service will only be restored when it is safe to do so. Customers are encouraged to sign up for MetroAlerts for their route to receive updates.
Buses are expected to continue running until the last scheduled trips tonight.
MetroAccess service suspended Monday due to winter storm
Due to the weather forecast and expected road conditions, all MetroAccess paratransit service will be suspended on Monday, March 3. Service will be restored when it is safe to do so; however a time for service restoration is not yet known.
In addition, the meeting of Metro's Accessibility Advisory Committee scheduled for Monday has been cancelled and will be rescheduled.
Additional service changes for Monday are possible.