Scattered showers and severe storms brought occassional downpours for days, so flooding remains a concern in the D.C. area.
A costal flood warning issued for D.C. and Alexandria, Arlington and Falls Church in Virginia has been extended to 2 a.m. Saturday. Water levels at the Wisconsin Avenue gauge are expected to reach 8-9 feet Thursday night and Friday. On April 18, when Washington Harbour in Georgetown flooded because the floodgates weren't closed, the peak was 8.97 feet.
That large, persistent area of low pressure hovering over the area began to clear out Thursday, but there's still a 30 percent chance of rain in the area Friday, NBC Washington meteorologist Doug Kammerer said. The Potomac River should peak in the next 24 hours.
Many area creeks and streams have been running high, so people in flood-prone areas have been warned to be prepared.
Weather on the Web:
Get the latest weather from NBCWashington.com anytime, anywhere:
- Latest News4 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.)