* Flood warning thru 8 p.m. immediate metro area (map) *
* Winter weather advisory N Fauquier, Loudoun, Frederick, Montgomery & Howard counties 7 p.m. to 3 a.m. (map)*
* Snow accumulation map, timeline & frequent questions *
A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED. ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS IMMEDIATELY. RAINFALL ON ALREADY SATURATED GROUNDS WILL CAUSE CREEKS AND STREAMS TO RISE OUT OF THEIR BANKS.
Remember: never try to cross a flooded roadway - turn around, don’t drown. Some of the heaviest rain may fall during rush hour, so leave extra time for your commute.
As the upper level low draws closer, the intensity of the precipitation will increase. And until it pivots through the region from southwest to northeast later tonight, a steady stream of moisture will continue to feed into the area .
While the rain continues, with some of the heaviest yet to come, cold air is rushing into the region. The cold front has passed to our east (see image to right). To show an example of the temperature contrasts, at 1 p.m. Richmond, southeast of the front was 70, while Pittsburgh, northwest of the front, was 35.