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Flooding possible for commute

4:45 p.m. Update: A flash flood watch is in effect for much of the region through Tuesday morning. Two to 4 inches of rain are possible across the region.

Our colleagues at The Capital Weather Gang say strong winds, and even isolated tornadoes, are possible tonight. Additional storms may effect the morning commute.

Original post: The National Weather Service has issued a flash flood warning for eastern Montgomery and western Howard counties until 4:30 p.m. today.

The Capital Weather Gang has said heavy rain is likely in the region through tomorrow, with 1 to 3 inches possible.

TBD reported earlier that water was already swamping the intersection of Wisconsin and Montgomery avenues in Bethesda.

Be alert for additional flooding as you head for home, even if there is no flood warning for your area. Drivers may also have to contend with darkened intersections due to power outages -- remember to treat those as four-way stops.

Drive with caution, especially in areas that are prone to flooding. According to the Federal Emergency Management Agency:
-- Six inches of water will reach the bottom of most passenger cars and may cause you to lose control or stall.
-- A foot of water will float many vehicles.
-- Two feet of rushing water can carry away most vehicles -- even SUVs and pickups.

Montgomery County officials warned that flooding is likely in low-lying areas and on streets with slow drainage. Additionally, flooded areas may be more difficult to identify at night, they said.

Here are some additional resources:

Live Traffic Map | Capital Weather Gang | Radar Map |
Share your photos | NOAA Flood Safety

Post coverage of recent storms:

July 26 | Aug. 6 | Aug. 13

By Michael Bolden  | September 27, 2010; 4:45 PM ET
Categories:  Commuting, Driving, Metro  
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At about 11:30 this morning, I was driving southbound on 355 north of Montgomery Village and boy, was it coming down! You couldn't even see the lane markers. The majority of drivers were going much slower than the speed limit, but some idiots were driving fast and of course, they didn't have their lights on! There are always going to be idiots on the road, but why didn't the police who were on the road at that time stop them and give them tickets? The conditions were bad enough to warrant it.

Posted by: WashingtonDame | September 27, 2010 4:53 PM | Report abuse

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