Accumulating snow is expected to fall overnight in the D.C. area, potentially leading to hazardous driving conditions.
The National Weather Service issued a Winter Weather Advisory Sunday afternoon, warning of around one inch of snow.
From NWS:
… WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 7 AM EST MONDAY… THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW… WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 7 AM EST MONDAY. * PRECIPITATION TYPE… SNOW. * ACCUMULATIONS… A COATING TO 1 INCH. LOCALIZED AMOUNTS OF 1 TO 2 INCHES ARE EXPECTED SOUTH OF INTERSTATE 66 IN VIRGINIA AND EAST OF INTERSTATE 95 IN MARYLAND. * TIMING… SNOW WILL OVERSPREAD THE AREA BETWEEN 7 AND 10 PM THIS EVENING. THE STEADIEST SNOW IS EXPECTED BETWEEN 11 PM AND 4 AM. SNOW WILL END BY 6 AM ACROSS MOST LOCATIONS. * IMPACTS… ROADS WILL BE MAINLY WET THIS EVENING WITH TEMPERATURES ABOVE FREEZING. UNTREATED SURFACES WILL BECOME SLIPPERY AFTER MIDNIGHT WITH TEMPERATURES DROPPING TO NEAR OR SLIGHTLY BELOW FREEZING. * WINDS… NORTH TO NORTHWEST AROUND 5 MPH… BECOMING NORTHWEST AROUND 10 TO 15 MPH TOWARD MORNING. * TEMPERATURES… MID TO UPPER 30S THIS EVENING… FALLING INTO THE UPPER 20S AND LOWER 30S OVERNIGHT INTO EARLY MONDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS… A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES… AND USE CAUTION WHILE DRIVING. &&