Hydrometeorological Discussion
Issued by NWS Northeast RFC

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AGUS71 KTAR 181611
HMDTAR
HYDROMETEOROLOGICAL DISCUSSION
NATIONAL WEATHER SERVICE
NORTHEAST RIVER FORECAST CENTER...TAUNTON...MA
1206 PM EDT FRI APR 18 2014

HYDROMETEOROLOGICAL DISCUSSION:
:
HIGH PRESSURE KEPT THE NORTHEASTERN UNITED STATES DRY THURSDAY AND
EARLY FRIDAY.
:
THE HIGH PRESSURE SYSTEM...LOCATED OVER THE CANADIAN MARITIMES
FRIDAY MORNING...WILL KEEP MUCH OF THE NORTHEASTERN UNITED STATES
DRY FRIDAY. AN APPROACHING COLD FRONT WILL BRING LIGHT
PRECIPITATION TO WESTERN NEW YORK FRIDAY AFTERNOON OR EVENING...
AND MOVE TO THE NORTHEAST FRIDAY NIGHT AND SATURDAY. PRECIPITATION
AMOUNTS ARE FORECAST TO BE LESS THAN ONE QUARTER OF AN INCH...
WITH MOST LOCATIONS EXPECTING LESS THAN ONE TENTH OF AN INCH.
:
TEMPERATURES WILL BE WARMING INTO THE 40S AND 50S FRIDAY...AHEAD
OF THE APPROACHING COLD FRONT. HOWEVER...SOME OF THE PRECIPITATION
MAY FALL AS SNOW ACROSS THE HIGHEST ELEVATIONS IN NORTHERN NEW
YORK STATE AND NORTHERN NEW ENGLAND. ANY ACCUMULATIONS SHOULD BE
MINOR.
:
THE NEXT CHANCE FOR ANY SIGNIFICANT RAINFALL IS NOT EXPECTED UNTIL
THE MIDDLE OF NEXT WEEK. THIS WILL ALLOW RIVER LEVELS TO RECEDE
FOR THE NEXT FEW DAYS.
:
HYDROLOGIC DISCUSSION:
:
RIVER FLOODING CONTINUES TODAY ACROSS PORTIONS OF NORTHERN NEW
YORK AND NORTHERN NEW ENGLAND, AS WELL AS THE MAINSTEM CONNECTICUT
RIVER.
:
MAJOR FLOODING IS OCCURRING ALONG THE MATTAWAMKEAG RIVER AT
MATTAWAMKEAG, ME, AND THIS MAJOR FLOODING IS FORECAST TO CONTINUE
THROUGH SATURDAY AFTERNOON BEFORE THE RIVER RECEDES BELOW ITS 16.0
FOOT MAJOR FLOOD STAGE.  ALSO, MAJOR FLOODING IS OCCURRING ALONG
THE SCHROON RIVER AT RIVERBANK, NY, AND THIS MAJOR FLOODING IS
EXPECTED TO CONTINUE THROUGH FRIDAY AFTERNOON.
:
MINOR FLOODING IS OCCURRING ALONG THE FOLLOWING RIVER FORECAST
LOCATIONS:
:
SEBASTICOOK RIVER AT PITTSFIELD, ME
CONNECTICUT RIVER AT DALTON, NH, NH
CONNECTICUT RIVER AT WEST LEBANON, NH
CONNECTICUT RIVER AT NORTHAMPTON, MA
CONNECTICUT RIVER AT THOMPSONVILLE, CT
CONNECTICUT RIVER AT MIDDLE HADDAM, CT
RICHELIEU RIVER AT ROUSES POINT, NY
:
IN ADDITION, THE COMBINATION OF HIGH FLOWS AND WINDS WILL BRING
THE RICHELIEU RIVER AT SAINT JOHN SHOAL ABOVE ITS 98.7 FOOT MINOR
FLOOD STAGE THIS FRIDAY AFTERNOON.
:
WITH NO SIGNIFICANT PRECIPITATION FORECAST OVER THE NEXT FEW DAYS,
RIVER LEVELS WILL CONTINUE TO CREST AND RECEDE ACROSS THE
NORTHEAST.  HOWEVER, MINOR TO MODERATE FLOODING WILL STILL BE
OCCURRING ON THE SCHROON RIVER, THE MATTAWAMKEAG RIVER, AND THE
LOWER END OF THE MAINSTEM CONNECTICUT RIVER THROUGH THIS UPCOMING
WEEKEND.
:
FLOOD OUTLOOK DISCUSSION:
:
SIGNIFICANT RAIN COMBINED WITH SNOWMELT EARLIER THIS WEEK RESULTED
IN WIDESPREAD MINOR TO SIGNIFICANT RIVER FLOODING ACROSS THE
NORTHEAST.  AS INDICATED BY THE NERFC 5-DAY SIGNIFICANT FLOOD
OUTLOOK GRAPHIC, TWO LOCATIONS STILL REMAIN ABOVE THEIR MAJOR
FLOOD STAGES...THE SCHROON RIVER AT RIVERBANK, NY AND THE
MATTAWAMKEAG RIVER AT MATTAWAMKEAG, ME. THIS SIGNIFICANT FLOODING
IS EXPECTED TO CONTINUE THROUGH THIS UPCOMING WEEKEND AT BOTH OF
THESE LOCATIONS.
:
WHILE THE LATEST FORECAST FOR THE CONNECTICUT RIVER AT MIDDLE
HADDAM, CT KEEPS THE RIVER JUST BELOW ITS 10.5 FOOT MODERATE FLOOD
STAGE, IT IS TOO CLOSE TO CALL AT THIS POINT WHETHER OR NOT THE
RIVER WILL REACH ITS MODERATE FLOOD STAGE OVER THE NEXT FEW DAYS.
THUS, SIGNIFICANT FLOODING IS STILL POSSIBLE ALONG THE LOWER
CONNECTICUT RIVER AT MIDDLE HADDAM, CT THIS UPCOMING WEEKEND, AND
THIS LOCATION WILL NEED TO BE CLOSELY MONITORED.
:
THE FLOOD OUTLOOK GRAPHIC IS AVAILABLE ON THE WEB AT:
:
HTTP://W2.WEATHER.GOV/NERFC/FOP
:
ADDITIONAL WATER AND WEATHER RELATED INFORMATION CAN BE FOUND ON
THE NWS/NERFC HOME PAGE AT http://www.nws.noaa.gov/er/nerfc
:
$$
:
HYDROMETEOROLOGICAL DISCUSSION:  JEFF OUELLET
HYDROLOGIC DISCUSSION:           TRACY MCCORMICK





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