Tornado warnings for southern Prince George's County and north-central Charles County have expired, as strong storms are exiting the Washington region.
At 9:30 a.m. radar indicated a severe storm capable of producing a tornado near Waldorf moving northeast at 45 mph. Locations impacted included Clinton, Md.
A tornado watch also had been issued until 10 a.m. for the Washington region.
A flash flood watch is in effect through Wednesday afternoon, according to the National Weather Service, but the really severe weather arrived just in time to wreck havoc on Wednesday morning's rush hour. Coastal flood warnings also have been issued until 3 p.m.
Tuesday's warm weather was ahead of a strong storm system that delivered severe storms Wednesday morning, said NBC Washington Chief Meteorologist Doug Kammerer.
Translation: We got rain -- a lot of it, and very quickly. Heavy rain, thunderstorms and very strong winds were expected, with anywhere from one to three inches of rain possible in some areas, Kammerer said. A wind advisory is in effect, with wind gusts of 40 to 50 mph possible.
If you live in an area prone to flooding, be prepared, and be careful. Do not to try to get through flooded areas on foot or by car, as depths and currents can be deceiving.
The Department of Public Works will give up to four sandbags per household to D.C. residents. DPW will distribute the sandbags at its site at New Jersey Avenue and K Street S.E. from 7 a.m. to noon Wednesday. Each bag weighs between 40 and 50 pounds. Residents will need to load them into their vehicles.
The heavy rain could end by about 10 a.m. Wednesday, with the remainder moving out by about noon Wednesday. Temperatures will be in the fifties in the morning, with strong winds of 40 up to 60 mph. By late afternoon, the rain should taper off, but temps will fall to around 45 degrees, with a cold wind.
Very cold air will work its way into the Washington region behind that weather system. Temperatures will be in the low- to mid-40s through the weekend.
Weather on the Web: Get the latest weather from NBCWashington.com anytime, anywhere:
- Latest NBC Washington Forecast: Click Here
- Severe Weather Alerts: Click Here
- Weather Maps: Click Here
- Complete Weather Coverage: Click Here
Follow us on Twitter and Facebook. Sign up for our e-mail newsletters and get breaking news delivered right to your mobile phone -- just text DCBREAKING to 622339 to sign up. (Message and data rates may apply.)