Wet Weather

Good weather held together across the region for most of the Memorial Day extended weekend. The chance for rain threatened much of the weekend but nothing substantial happened until Monday Afternoon. Since that time, some significant rains have hit the area.

tueranjNWS Doppler Radar, Sterling, Va. … Storm Total Estimate

The image above shows the rain total from the most recent rains. The heaviest rains have fallen in a band running from central Delaware westward across theBaltimore-Washington area into northern Virginia. Rain totals in the 3-4 inch range have been estimated by radar between Baltimore and Washington. The list below shows actual rainfall reported to the National Weather Service:

PUBLIC INFORMATION STATEMENT
SPOTTER REPORTS
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
828 AM EDT TUE MAY 26 2009

THE FOLLOWING ARE UNOFFICIAL OBSERVATIONS TAKEN DURING THE PAST 12 HOURS
FOR THE STORM THAT HAS BEEN AFFECTING OUR REGION.  APPRECIATION IS EXTENDED
TO HIGHWAY DEPARTMENTS...COOPERATIVE OBSERVERS...SKYWARN SPOTTERS
AND MEDIA FOR THESE REPORTS.  THIS SUMMARY IS ALSO AVAILABLE ON OUR
HOME PAGE AT WEATHER.GOV/BALTIMORE

***********************6 HOUR RAINFALL***********************

LOCATION               6 HOUR    TIME/DATE    COMMENTS
                     RAINFALL       OF
                     (INCHES)   MEASUREMENT

VIRGINIA

...LOUDOUN COUNTY...
   DULLES AIRPORT DAM    3.63   811 AM  5/26
   STERLING NWS/WFO      2.79   812 AM  5/26

**********************12 HOUR RAINFALL**********************

LOCATION              12 HOUR    TIME/DATE    COMMENTS
                     RAINFALL       OF
                     (INCHES)   MEASUREMENT

MARYLAND

...PRINCE GEORGE`S COUNTY...
   GREENBELT             2.50   809 AM  5/26

**********************24 HOUR RAINFALL**********************

LOCATION              24 HOUR    TIME/DATE    COMMENTS
                     RAINFALL       OF
                     (INCHES)   MEASUREMENT

MARYLAND

...PRINCE GEORGE`S COUNTY...
   GREENBELT             4.00   809 AM  5/26

The band of rain that produced all of this lies just north of a nearly stalled cool front that will be in the area for at least the next 24 hours. Clouds, cool temperatures and periods of rain will be the dominant weather feature.

latest

 

The satellite image above shows the moisture feed coming in to the Mid Atlantic region from the Atlantic Ocean and a storm complex to the west. It will take the rest of the week for all of this to work its’ way eastward so it appears that the rain threat will continue until the weekend.

John Collins

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