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March 13, 2010

Flooding increases amid heavy rains

NOAA 

Heavy, peristent rain across the region is bringing small stream and creeks to their brims, while waters are rising to flood stage along the Potomac River, the Monocacy in Frederick County and other rivers.

BWI-Marshall has tallied more than 3 inches of rain so far from this storm. We have 1.6 on the gauge here on the WeatherDeck. Drop a comment and let us know what you're seeing.

The National Weather Service has posted Flood Warnings from Garrett County east to theWestern Run in flood Chesapeake, with more rain expected. Here is a bit of this afternoon's Forecast Discussion from Sterling:

"...THE FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM EST FOR URBAN
AREAS AND SMALL STREAMS IN BALTIMORE CITY...BALTIMORE...NORTHERN ANNE
ARUNDEL...HOWARD AND CARROLL COUNTIES...

"AT 219 PM EST NATIONAL SERVICE DOPPLER RADAR CONTINUED TO INDICATE
AN AREA OF HEAVY RAINFALL ACROSS THE BALTIMORE METROPOLITAN AREA.
ADDITIONAL RAINFALL AMOUNTS UP TO AN INCH ARE POSSIBLE.

"A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED.
HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS
IMMEDIATELY.
"

NOAA's Advanced Hydrologic Prediction Service is reporting minor flooding along the Potomac River near Williamsport, Little Falls (chart above) and Wisconsin Avenue in Washington, D.C.

The National Weather Service is also reporting flooding and closed roads on Route 77 near Cunningham Falls, near Thurmont in Frederick County and in Elkridge. Roads have been closed, also, in parts of Loudon County, Va., and Hampshire County, West Virginia.

(SUN PHOTO: Frank D. Roylance)

Posted by Frank Roylance at 2:51 PM | | Comments (2)
Categories: Flooding
        

Comments

Frank, not sure if you knew about these gauges or not: http://afws.erh.noaa.gov/afws/county.php?state=24&county=027&type=stage

Patapsco River rose 8 feet at Elkridge, 3 feet at Ellicott City.

My parents live in Shepherdstown, WV, along the Potomac (I told them to never buy property where a required access road is called "River Road") , and people were kayaking on their field yesterday -- there was just no sense of where river, road, or field ended or began.

I also just wanted to thank you, though we're not in a high-drama snow period, for all the time and effort you take with this blog, really expanding my understanding of meteorology and the interaction of various forces!

FR: Thanks!

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About Frank Roylance
Frank Roylance is a reporter for The Baltimore Sun. He came to Baltimore from New Bedford, Mass. in 1980 to join the old Evening Sun. He moved to the morning Sun when the papers merged in 1992, and has spent most of his time since covering science, including astronomy and the weather. One of The Baltimore Sun's first online Web logs, the Weather Blog debuted in October 2004. In June 2006 Frank also began writing comments on local weather and stargazing for The Baltimore Sun's print Weather Page. Frank also answers readers’ weather queries for the newspaper and the blog. Frank Roylance retired in October 2011. Maryland Weather is now being updated by members of The Baltimore Sun staff
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