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2 products issued by NWS for: Walkersville MD
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Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
514 AM EDT WED SEP 28 2016

MDZ003>006-501>507-VAZ025>031-036>040-050-051-501>508-WVZ050>053-
055-501>506-290915-
WASHINGTON-FREDERICK MD-CARROLL-NORTHERN BALTIMORE-
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-
NORTHWEST MONTGOMERY-CENTRAL AND SOUTHEAST MONTGOMERY-
NORTHWEST HOWARD-CENTRAL AND SOUTHEAST HOWARD-NORTHWEST HARFORD-
AUGUSTA-ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-
NELSON-ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-ORANGE-CULPEPER-
NORTHERN FAUQUIER-SOUTHERN FAUQUIER-WESTERN HIGHLAND-
EASTERN HIGHLAND-WESTERN LOUDOUN-EASTERN LOUDOUN-
NORTHERN VIRGINIA BLUE RIDGE-CENTRAL VIRGINIA BLUE RIDGE-
HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-HARDY-WESTERN GRANT-
EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL-WESTERN PENDLETON-
EASTERN PENDLETON-
510 AM EDT WED SEP 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN WEST VIRGINIA...
NORTHERN AND CENTRAL VIRGINIA...AND CENTRAL AND WESTERN MARYLAND
WITH THE EXCEPTION OF GARRETT COUNTY.

.DAY ONE...TODAY AND TONIGHT

A FLASH FLOOD WATCH IS IN EFFECT LATE TONIGHT FOR MOST OF THE
AREA EXCEPT OVER THE POTOMAC HIGHLANDS AND THE SOUTHERN SHENANDOAH
VALLEY. PLEASE REFER TO THE FLASH FLOOD MESSAGE FOR MORE DETAILS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE FLASH FLOOD WATCH CONTINUES THURSDAY THROUGH FRIDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.
$$




Flash Flood Watch

FLOOD WATCH
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1244 AM EDT WED SEP 28 2016


DCZ001-MDZ003>006-011-013-014-016>018-502>508-VAZ027>031-038>040-
050>057-501-502-505>507-WVZ050>053-055-504-281245-
/O.CON.KLWX.FF.A.0011.160929T0600Z-160930T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DISTRICT OF COLUMBIA-WASHINGTON-FREDERICK MD-CARROLL-
NORTHERN BALTIMORE-SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-
CHARLES-ST. MARYS-CALVERT-CENTRAL AND EASTERN ALLEGANY-
NORTHWEST MONTGOMERY-CENTRAL AND SOUTHEAST MONTGOMERY-
NORTHWEST HOWARD-CENTRAL AND SOUTHEAST HOWARD-NORTHWEST HARFORD-
SOUTHEAST HARFORD-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-
GREENE-MADISON-RAPPAHANNOCK-ORANGE-CULPEPER-
PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-
KING GEORGE-NORTHERN FAUQUIER-SOUTHERN FAUQUIER-WESTERN LOUDOUN-
EASTERN LOUDOUN-NORTHERN VIRGINIA BLUE RIDGE-HAMPSHIRE-MORGAN-
BERKELEY-JEFFERSON-HARDY-EASTERN MINERAL-
INCLUDING THE CITIES OF...WASHINGTON...HAGERSTOWN...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...CUMBERLAND...
GERMANTOWN...DAMASCUS...BETHESDA...ROCKVILLE...GAITHERSBURG...
SILVER SPRING...LISBON...COLUMBIA...ELLICOTT CITY...
JARRETTSVILLE...ABERDEEN...STRASBURG...WOODSTOCK...
MOUNT JACKSON...NEW MARKET...WINCHESTER...LURAY...SHENANDOAH...
STANLEY...FRONT ROYAL...BERRYVILLE...STANARDSVILLE...MADISON...
ORANGE...GORDONSVILLE...CULPEPER...DALE CITY...MANASSAS...
WOODBRIDGE...LAKE RIDGE...MONTCLAIR...RESTON...HERNDON...
ANNANDALE...CENTREVILLE...CHANTILLY...MCLEAN...FRANCONIA...
ARLINGTON...ALEXANDRIA...FALMOUTH...FREDERICKSBURG...DAHLGREN...
WARRENTON...TURNBULL...PURCELLVILLE...LEESBURG...ASHBURN...
STERLING...BIG MEADOWS...ROMNEY...PAW PAW...MARTINSBURG...
CHARLES TOWN...SHEPHERDSTOWN...MOOREFIELD...ANTIOCH...KEYSER...
NEW CREEK...RIDGEVILLE...RUSSELLDALE...HEADSVILLE...FORT ASHBY
1244 AM EDT WED SEP 28 2016

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY MORNING...

THE FLASH FLOOD WATCH CONTINUES 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 TONIGHT THROUGH 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 GREATEST
  RAIN RATES IS EXPECTED LATE WEDNESDAY NIGHT THROUGH THURSDAY
  AFTERNOON. WIDESPREAD RAINFALL AMOUNTS OF 3 TO 5 INCHES ARE
  EXPECTED WITH LOCALIZED HIGHER TOTALS IN AREAS OF REPEATED
  ACTIVITY. ADDITIONALLY...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.

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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Silver Spring, MD 20910
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Page last modified: May 16, 2007
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