MD Flash Flood Watch Issued For 6 Counties, Baltimore City

MARYLAND — Six Maryland counties plus the city of Baltimore are under a flash flood watch that begins at 3 p.m. Wednesday and will continue through the night.

The counties the National Weather Service included in the watch are Anne Arundel, Howard, Montgomery, Prince George's, Harford, and Baltimore counties, plus the city of Baltimore. Portions of Washington, D.C. and northern Virginia are also under the watch.

"Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations," said the National Weather Service. "Creeks and streams may rise rapidly out of their banks. Flooding may occur quickly in poor drainage and urban areas."

Rain and thunderstorms are expected Wednesday afternoon and evening—flash flooding is most likely in the evening, though it could happen in the late afternoon, according to AccuWeather.

People in the affected areas should expect several inches of rain in a short time period and be ready to take action if a flood warning is issued. The National Weather Service generally advises that people have a communication plan in place, assemble an emergency kit, know the risk in your area, sign up for weather notifications, and charge electronics in order to be prepared for a serious weather event.

See more tips from the Weather Service on how to stay safe during a potential flood.

Here's the latest forecast from AccuWeather:

Wednesday: Scattered showers expected before 2 p.m., followed by scattered showers and thunderstorms between 2 p.m. and 5 p.m. Shower are likely and there could be thunderstorm after 5 p.m. Some of the storms could include heavy rain. There will be northwest wind around 7 mph and the chance of precipitation is 60 percent.

Wednesday Night: Showers are likely and there is a possible thunderstorm before 11 p.m., followed by scattered showers and thunderstorms after 11 p.m. There could be heavy rain during the storms. The skies are expected to be mostly cloudy, with a low temperature around 74. East wind around 5 mph will become calm in the evening, and the chance of precipitation is 70 percent. New rainfall amounts is expected between a tenth and quarter of an inch, except for higher amounts that are possible in thunderstorms.

Thursday: There is a chance of showers and thunderstorms before 8 a.m., followed by a chance of showers between 8 a.m and 2 p.m., then there is a chance of showers and thunderstorms after 2 p.m. Skies will be mostly cloudy, with a high near 83, with northeast wind 3 to 6 mph and a chance of precipitation at 50 percent.

Thursday Night: There is a chance of showers and thunderstorms before 11 p.m., then a chance of showers between 11 p.m. and 2 a.m., then a chance of showers and thunderstorms after 2 a.m. It will be mostly cloudy, with a low around 74. There will be a calm wind becoming southeast around 5 mph after midnight, and the chance of precipitation is 40 percent.

Friday: There's a chance of showers and thunderstorms, and showers are likely along with a thunderstorm after 2 p.m. It will be mostly cloudy, with a high near 84. West wind around 6 mph. Chance of precipitation is 60 percent.

Friday Night: Showers are likely and there could be a thunderstorm before 8 p.m., followed by a chance of showers and thunderstorms after 8 p.m. Skies are expected to be mostly cloudy, with a low around 69. Chance of precipitation is 60 percent.

Saturday: Skies are partly sunny, with a high near 83.

Saturday Night: Skies are expected to be partly cloudy, with a low around 64.

Sunday: Sunny skies with a high near 81.

Sunday Night: Skies will be mostly clear, with a low around 65.