Flash Flood Watch
Issued by NWS Portland, ME

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WGUS61 KGYX 210720
FFAGYX

FLOOD WATCH
NATIONAL WEATHER SERVICE GRAY ME
320 AM EDT TUE APR 21 2015

...HEAVY RAIN AND SNOWMELT MAY CAUSE FLOODING THROUGH TONIGHT...
LOW PRESSURE WILL DRIVE AN OCCLUDED FRONT ACROSS THE REGION TODAY
PRECEDED BY LOCALLY HEAVY RAIN AND SCATTERED THUNDERSTORMS.


MEZ007>009-012>014-018>028-NHZ002>010-013-014-211700-
/O.CON.KGYX.FA.A.0001.000000T0000Z-150422T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHERN OXFORD-NORTHERN FRANKLIN-CENTRAL SOMERSET-
SOUTHERN OXFORD-SOUTHERN FRANKLIN-SOUTHERN SOMERSET-INTERIOR YORK-
INTERIOR CUMBERLAND-ANDROSCOGGIN-KENNEBEC-INTERIOR WALDO-
COASTAL YORK-COASTAL CUMBERLAND-SAGADAHOC-LINCOLN-KNOX-
COASTAL WALDO-SOUTHERN COOS-NORTHERN GRAFTON-NORTHERN CARROLL-
SOUTHERN GRAFTON-SOUTHERN CARROLL-SULLIVAN-MERRIMACK-BELKNAP-
STRAFFORD-INTERIOR ROCKINGHAM-COASTAL ROCKINGHAM-
INCLUDING THE CITIES OF...ANDOVER...ROXBURY...UPTON...
WILSONS MILLS...COBURN GORE...RANGELEY...KINGFIELD...BINGHAM...
JACKMAN...RUMFORD...NORWAY...FRYEBURG...OXFORD...FARMINGTON...
WILTON...MADISON...SKOWHEGAN...PITTSFIELD...SANFORD...BERWICK...
NORTH WINDHAM...GORHAM...BRIDGTON...LEWISTON...AUBURN...
LIVERMORE FALLS...AUGUSTA...WATERVILLE...WINTERPORT...UNITY...
BIDDEFORD...SACO...OLD ORCHARD BEACH...KITTERY...PORTLAND...
SOUTH PORTLAND...WESTBROOK...BATH...TOPSHAM...BOOTHBAY HARBOR...
WISCASSET...WALDOBORO...CAMDEN...ROCKLAND...THOMASTON...BELFAST...
LINCOLNVILLE...BERLIN...LANCASTER...LITTLETON...NORTH CONWAY...
LEBANON...HANOVER...PLYMOUTH...WOLFEBORO...OSSIPEE...CLAREMONT...
NEWPORT...CHARLESTOWN...CONCORD...HOOKSETT...LACONIA...MEREDITH...
ROCHESTER...DOVER...SALEM...DERRY...EXETER...PORTSMOUTH...HAMPTON
320 AM EDT TUE APR 21 2015

...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING...

THE FLOOD WATCH CONTINUES FOR

* PORTIONS OF WESTERN MAINE AND NEW HAMPSHIRE...INCLUDING THE
  FOLLOWING AREAS...IN WESTERN MAINE...ANDROSCOGGIN...CENTRAL
  SOMERSET...COASTAL CUMBERLAND...COASTAL WALDO...COASTAL YORK...
   INTERIOR CUMBERLAND...INTERIOR WALDO...INTERIOR YORK...
  KENNEBEC...KNOX...LINCOLN...NORTHERN FRANKLIN...NORTHERN
  OXFORD...SAGADAHOC...SOUTHERN FRANKLIN...SOUTHERN OXFORD AND
  SOUTHERN SOMERSET. IN NEW HAMPSHIRE...BELKNAP...COASTAL
  ROCKINGHAM...INTERIOR ROCKINGHAM...MERRIMACK...NORTHERN
  CARROLL...NORTHERN GRAFTON...SOUTHERN CARROLL...SOUTHERN
  COOS...SOUTHERN GRAFTON...STRAFFORD AND SULLIVAN.

* THROUGH WEDNESDAY MORNING.

* LOW PRESSURE WILL DRIVE AN OCCLUDED FRONT ACROSS THE REGION
  TODAY PRECEDED BY LOCALLY HEAVY RAIN AND SCATTERED THUNDERSTORMS.
  THIS FRONTAL SYSTEM WILL PRODUCE BETWEEN 1.5 AND 2.5 INCHES OF
  RAIN ACROSS MUCH OF THE AREA...WITH LOCALLY HIGHER AMOUNTS. THE
  HEAVIEST RAINFALL SHOULD OCCUR THIS MORNING... BUT RUNOFF AND
  ADDITIONAL SNOWMELT WILL KEEP THE THREAT FOR FLOODING GOING
  THROUGH AT LEAST TONIGHT. THE HEAVIEST RAINFALL IS EXPECTED ON
  THE COASTAL PLAIN...AS WELL AS THE EAST SLOPES OF THE WHITE
  MOUNTAINS NORTHEASTWARD INTO THE MAINE FOOTHILLS.

* RIVERS ARE ALREADY ON THE RISE FROM SNOWMELT OVER THE PAST FEW
  WEEKS. 1.5 TO 2.5 INCHES OF RAINFALL WILL ALLOW SOME RIVERS TO
  RISE TO BANKFULL AND EVEN OVERFLOW THEIR BANKS. URBAN AND POOR
  DRAINAGE FLOODING IS ALSO LIKELY THIS MORNING IN LOCALLY HEAVY
  RAINFALL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

&&

$$

NHZ011-012-015-211700-
/O.CON.KGYX.FA.A.0001.000000T0000Z-150422T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHESHIRE NH-EASTERN HILLSBOROUGH NH-
WESTERN AND CENTRAL HILLSBOROUGH NH-
INCLUDING THE CITIES OF...JAFFREY...KEENE...MANCHESTER...NASHUA...
PETERBOROUGH...WEARE
320 AM EDT TUE APR 21 2015

...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING...

THE FLOOD WATCH CONTINUES FOR

* A PORTION OF SOUTHERN NEW HAMPSHIRE...INCLUDING THE FOLLOWING
  AREAS...CHESHIRE NH...EASTERN HILLSBOROUGH NH AND WESTERN AND
  CENTRAL HILLSBOROUGH NH.

* THROUGH WEDNESDAY MORNING.

* LOW PRESSURE WILL DRIVE AN OCCLUDED FRONT ACROSS THE REGION
  TODAY PRECEDED BY LOCALLY HEAVY RAIN AND SCATTERED THUNDERSTORMS.
  THIS FRONTAL SYSTEM WILL PRODUCE BETWEEN 1.5 AND 2.5 INCHES OF
  RAIN ACROSS MUCH OF THE AREA...WITH LOCALLY HIGHER AMOUNTS. THE
  HEAVIEST RAINFALL SHOULD OCCUR THIS MORNING... BUT RUNOFF AND
  ADDITIONAL SNOWMELT WILL KEEP THE THREAT FOR FLOODING GOING
  THROUGH AT LEAST TONIGHT. THE HEAVIEST RAINFALL IS EXPECTED ON
  THE COASTAL PLAIN...AS WELL AS THE EAST SLOPES OF THE WHITE
  MOUNTAINS NORTHEASTWARD INTO THE MAINE FOOTHILLS.

* RIVERS ARE ALREADY ON THE RISE FROM SNOWMELT OVER THE PAST FEW
  WEEKS. 1.5 TO 2.5 INCHES OF RAINFALL WILL ALLOW SOME RIVERS TO
  RISE TO BANKFULL AND EVEN OVERFLOW THEIR BANKS. URBAN AND POOR
  DRAINAGE FLOODING IS ALSO LIKELY THIS MORNING IN LOCALLY HEAVY
  RAINFALL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

&&

$$

SCHWIBS


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