Rainfall Of 2 Inches Per Hour In MD Forecast, Flood Watch Issued

With heavy rain and storms brewing that could dump 2 inches of rain per hour in parts of already soggy Maryland, a flood watch has been issued by the National Weather Service for Monday evening in portions of the greater Baltimore-Washington region.

"Showers and thunderstorms are likely both this afternoon and Tuesday afternoon. Quieter conditions are expected behind a cold front mid-week through early next weekend," the agency said.

The flood watch will be in effect from 5 to 11 p.m. Monday for areas that received rain over the weekend.

That includes Anne Arundel, Carroll, Howard, Montgomery, Baltimore, Prince George's and Baltimore counties.

A tornado warning was issued at 5:13 p.m. Monday for east-central Baltimore County, and set to expire at 5:30 p.m.

"Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations," the National Weather Service said. "Thunderstorms are expected to develop in the next couple of hours across parts of the Baltimore and Washington metro areas. Storms are expected to be slow movers and be capable of producing intense rainfall rates of 1 to 2 inches per hour, which may result in flash flooding of small streams, creeks, urban and poor drainage areas."

With high temperatures around 90 degrees for much of the Baltimore-DC region, the humidity makes it feel like 100 to 105 outside.

"Following an extended drought, the past two months have been unusually wet in much of the region, leaving soils saturated. Rainfall totals around 10 to 15 inches have been common, which is about 125 to as much as 200 percent normal," The Washington Post's Capital Weather Gang said.

Here is the National Weather Service forecast for the Baltimore region:

Monday Night: Scattered showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 80. South wind 3 to 6 mph. Chance of precipitation is 40%.

Tuesday: Showers and thunderstorms likely before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm. Some of the storms could produce heavy rainfall. High near 94. Heat index values as high as 100. Southwest wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Tuesday Night: Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 75. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Wednesday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 91. West wind 3 to 5 mph. Chance of precipitation is 30%.

Wednesday Night: Partly cloudy, with a low around 75.

Thursday: Sunny, with a high near 93.

Thursday Night: Mostly clear, with a low around 73.

Independence Day: Sunny, with a high near 91.

Friday Night: Mostly clear, with a low around 73.

Saturday: Mostly sunny, with a high near 93.

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