[CALV-AUXCOMM] NWS Issues Flash Flood Watch

[N3AE]

All 

Not anticipating any call-up at this time but keep alert to changing conditions. 

N3AE 

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Event: 	Flash Flood Watch 
Alert: 	
...FLASH FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH 
FRIDAY MORNING... 
 
THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A 
 
* FLASH FLOOD WATCH FOR PORTIONS OF MARYLAND...THE DISTRICT OF 
COLUMBIA...VIRGINIA AND WEST VIRGINIA...INCLUDING THE 
FOLLOWING AREAS...IN MARYLAND...ANNE ARUNDEL...CALVERT... 
CARROLL...CENTRAL AND EASTERN ALLEGANY...CENTRAL AND SOUTHEAST 
HOWARD...CENTRAL AND SOUTHEAST MONTGOMERY...CHARLES... 
FREDERICK MD...NORTHERN BALTIMORE...NORTHWEST HARFORD... 
NORTHWEST HOWARD...NORTHWEST MONTGOMERY...PRINCE GEORGES... 
SOUTHEAST HARFORD...SOUTHERN BALTIMORE...ST. MARYS AND 
WASHINGTON. THE DISTRICT OF COLUMBIA. IN VIRGINIA... 
 
ARLINGTON/FALLS CHURCH/ALEXANDRIA...CLARKE...CULPEPER... 
EASTERN LOUDOUN...FAIRFAX...FREDERICK VA...GREENE...KING 
GEORGE...MADISON...NORTHERN FAUQUIER...NORTHERN VIRGINIA BLUE 
RIDGE...ORANGE...PAGE...PRINCE WILLIAM/MANASSAS/MANASSAS 
PARK...RAPPAHANNOCK...SHENANDOAH...SOUTHERN FAUQUIER... 
SPOTSYLVANIA...STAFFORD...WARREN AND WESTERN LOUDOUN. IN WEST 
VIRGINIA...BERKELEY...EASTERN MINERAL...HAMPSHIRE...HARDY... 
JEFFERSON AND MORGAN. 
 
* FROM LATE WEDNESDAY NIGHT INTO FRIDAY MORNING 
 
* AN UPPER LEVEL LOW PRESSURE OVER THE WESTERN GREAT LAKES WILL 
DROP SOUTHWARD INTO THE OHIO VALLEY WEDNESDAY INTO THURSDAY. AS 
THE UPPER LOW DROPS SOUTHWARD...LOW LEVEL FLOW IS FORECAST TO 
RAPIDLY INCREASE OVER THE AREA WEDNESDAY NIGHT RESULTING IN 
SIGNIFICANT MOISTURE TRANSPORT INTO THE AREA. PERIODS OF HEAVY 
RAINFALL ARE ANTICIPATED LATE WEDNESDAY NIGHT THROUGH THURSDAY 
NIGHT ACROSS THE CENTRAL MID-ATLANTIC. THE PERIOD OF MOST 
INTENSE RAINFALL IS EXPECTED LATE WEDNESDAY NIGHT THROUGH EARLY 
THURSDAY AFTERNOON. WIDESPREAD RAINFALL AMOUNTS OF 3 TO 5 INCHES 
ARE EXPECTED WITH LOCALIZED HIGHER TOTALS IN AREAS OF REPEATED 
ACTIVITY. EASTERN SLOPES OF MOUNTAINS SUCH AS THE NORTHERN BLUE 
RIDGE AND CATOCTIN MOUNTAIN ALSO HAVE AN INCREASED RISK FOR 
HIGHER RAIN TOTALS. 
 
* POTENTIAL EXISTS FOR FLASH FLOODING OF SMALL STREAMS...CREEKS 
AND URBAN AREAS ESPECIALLY IN AREAS OF REPEATED ACTIVITY. 

Instructions: 	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. 
Target Area: 	Anne Arundel 
Calvert 
Carroll 
Central and Eastern Allegany 
Central and Southeast Howard 
Central and Southeast Montgomery 
Charles 
Frederick 
Northern Baltimore 
Northwest Harford 
Northwest Howard 
Northwest Montgomery 
Prince Georges 
Southeast Harford 
Southern Baltimore 
St. Marys 
Washington