668  
WGUS61 KLWX 060646  
FFALWX  
 
URGENT - IMMEDIATE BROADCAST REQUESTED  
FLOOD WATCH  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
246 AM EDT THU AUG 6 2020  
 
DCZ001-MDZ004>006-011-013-014-016>018-503>508-VAZ025-036-037-050-  
052>057-501-502-505-506-508-062145-  
/O.EXB.KLWX.FF.A.0018.000000T0000Z-200807T0400Z/  
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
DISTRICT OF COLUMBIA-FREDERICK MD-CARROLL-NORTHERN BALTIMORE-  
SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-  
CALVERT-NORTHWEST MONTGOMERY-CENTRAL AND SOUTHEAST MONTGOMERY-  
NORTHWEST HOWARD-CENTRAL AND SOUTHEAST HOWARD-NORTHWEST HARFORD-  
SOUTHEAST HARFORD-AUGUSTA-NELSON-ALBEMARLE-ORANGE-  
PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-  
ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-  
KING GEORGE-NORTHERN FAUQUIER-SOUTHERN FAUQUIER-WESTERN LOUDOUN-  
EASTERN LOUDOUN-CENTRAL VIRGINIA BLUE RIDGE-  
INCLUDING THE CITIES OF WASHINGTON, FREDERICK, BALLENGER CREEK,  
ELDERSBURG, WESTMINSTER, REISTERSTOWN, COCKEYSVILLE, BALTIMORE,  
BOWIE, SUITLAND-SILVER HILL, CLINTON, COLLEGE PARK, GREENBELT,  
LAUREL, CAMP SPRINGS, GLEN BURNIE, ANNAPOLIS, SEVERN, SOUTH GATE,  
SEVERNA PARK, ARNOLD, ODENTON, ST. CHARLES, WALDORF,  
LEXINGTON PARK, CALIFORNIA, CHESAPEAKE BEACH, HUNTINGTOWN,  
DUNKIRK, NORTH BEACH, LUSBY, PRINCE FREDERICK, GERMANTOWN,  
DAMASCUS, BETHESDA, ROCKVILLE, GAITHERSBURG, SILVER SPRING,  
LISBON, COLUMBIA, ELLICOTT CITY, JARRETTSVILLE, ABERDEEN,  
STAUNTON, WAYNESBORO, STUARTS DRAFT, LOVINGSTON, CHARLOTTESVILLE,  
ORANGE, GORDONSVILLE, DALE CITY, MANASSAS, WOODBRIDGE,  
LAKE RIDGE, MONTCLAIR, RESTON, HERNDON, ANNANDALE, CENTREVILLE,  
CHANTILLY, MCLEAN, FRANCONIA, ARLINGTON, ALEXANDRIA,  
FALLS CHURCH, FALMOUTH, FREDERICKSBURG, DAHLGREN, WARRENTON,  
TURNBULL, PURCELLVILLE, LEESBURG, ASHBURN, STERLING,  
AND WINTERGREEN  
246 AM EDT THU AUG 6 2020  
   
..FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING
 
 
THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS EXPANDED  
THE  
 
* FLASH FLOOD WATCH TO INCLUDE PORTIONS OF MARYLAND, THE  
DISTRICT OF COLUMBIA, AND VIRGINIA, INCLUDING THE FOLLOWING  
AREAS, IN MARYLAND, ANNE ARUNDEL, CALVERT, CARROLL, CENTRAL  
AND SOUTHEAST HOWARD, CENTRAL AND SOUTHEAST MONTGOMERY,  
CHARLES, FREDERICK, NORTHERN BALTIMORE, NORTHWEST HARFORD,  
NORTHWEST HOWARD, NORTHWEST MONTGOMERY, PRINCE GEORGES,  
SOUTHEAST HARFORD, SOUTHERN BALTIMORE, AND ST. MARYS. THE  
DISTRICT OF COLUMBIA. IN VIRGINIA, ALBEMARLE, ARLINGTON/FALLS  
CHURCH/ALEXANDRIA, AUGUSTA, CENTRAL VIRGINIA BLUE RIDGE,  
EASTERN LOUDOUN, FAIRFAX, KING GEORGE, NELSON, NORTHERN  
FAUQUIER, ORANGE, PRINCE WILLIAM, SOUTHERN FAUQUIER,  
SPOTSYLVANIA, STAFFORD, AND WESTERN LOUDOUN.  
 
* THROUGH THIS EVENING  
 
* NUMEROUS SLOW MOVING SHOWERS AND THUNDERSTORMS CONTINUE TO  
DEVELOP ACROSS THE REGION AND SHOULD EXPAND AND REDEVELOP WITH  
TIME. LOCATIONS WHICH ARE REPETITIVELY AFFECTED COULD RECEIVE  
MULTIPLE-INCH RAINFALL TOTALS. THIS COULD LEAD TO RAPID RISES ON  
STREAMS AND FLASH FLOODING OF LOW LYING AREAS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD  
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.  
 
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION  
SHOULD FLASH FLOOD WARNINGS BE ISSUED.  
 

 
 

 
 
VAZ026-029-038>040-051-507-062145-  
/O.EXT.KLWX.FF.A.0018.000000T0000Z-200807T0400Z/  
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
ROCKINGHAM-PAGE-GREENE-MADISON-RAPPAHANNOCK-CULPEPER-  
NORTHERN VIRGINIA BLUE RIDGE-  
INCLUDING THE CITIES OF HARRISONBURG, LURAY, SHENANDOAH, STANLEY,  
STANARDSVILLE, MADISON, WASHINGTON, CULPEPER, AND BIG MEADOWS  
246 AM EDT THU AUG 6 2020  
   
..FLASH FLOOD WATCH NOW IN EFFECT THROUGH THIS EVENING
 
 
THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR  
 
* PORTIONS OF CENTRAL VIRGINIA, NORTHERN VIRGINIA, NORTHWEST  
VIRGINIA, AND WESTERN VIRGINIA, INCLUDING THE FOLLOWING AREAS,  
IN CENTRAL VIRGINIA, GREENE. IN NORTHERN VIRGINIA, CULPEPER.  
IN NORTHWEST VIRGINIA, MADISON, NORTHERN VIRGINIA BLUE RIDGE,  
PAGE, AND RAPPAHANNOCK. IN WESTERN VIRGINIA, ROCKINGHAM.  
 
* THROUGH THIS EVENING  
 
* NUMEROUS SLOW MOVING SHOWERS AND THUNDERSTORMS CONTINUE TO  
DEVELOP ACROSS THE REGION AND SHOULD EXPAND AND REDEVELOP WITH  
TIME. LOCATIONS WHICH ARE REPETITIVELY AFFECTED COULD RECEIVE  
MULTIPLE-INCH RAINFALL TOTALS. THIS COULD LEAD TO RAPID RISES ON  
STREAMS AND FLASH FLOODING OF LOW LYING AREAS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD  
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.  
 
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION  
SHOULD FLASH FLOOD WARNINGS BE ISSUED.  
 

 
 

 
 
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