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Mesoscale Discussion 94
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   MESOSCALE DISCUSSION 0094
   NWS STORM PREDICTION CENTER NORMAN OK
   1130 AM CST MON FEB 08 2016

   AREAS AFFECTED...PORTIONS OF ERN MA...FAR ERN NH...RI...ERN CT...AND
   ERN LONG ISLAND

   CONCERNING...HEAVY SNOW 

   VALID 081730Z - 082230Z

   SUMMARY...HEAVY SNOWFALL...WITH RATES OF 1 INCH/HR COMMON...WILL
   LIKELY CONTINUE UNTIL AROUND 22Z. BLIZZARD CONDITIONS WILL REMAIN
   LIKELY ACROSS SERN MA...INCLUDING THE CAPE AND ADJACENT ISLANDS.

   DISCUSSION...RADAR IMAGERY AS OF 1715Z ACROSS THE REGION DEPICTS
   SEVERAL BANDS OF ONGOING MODERATE TO HEAVY SNOW ASSOCIATED WITH A
   STACKED UPPER/SFC LOW ESE OF THE NEW ENGLAND COAST. TENDENCY WILL BE
   FOR THESE MESOSCALE BANDS TO SLOWLY SHIFT EWD TOWARDS THE COAST
   THROUGH 22Z AS THE UPPER/SFC LOW CONTINUE QUICKLY NEWD AND AWAY FROM
   THE MCD AREA. ACROSS WRN PORTIONS OF MA/CT...ONE OF THESE MESOSCALE
   BANDS IS STRUGGLING TO PRODUCE ANY MORE THAN MODERATE SNOW PER SFC
   OBSERVATIONS AND REPORTED SNOW TOTALS. THIS MAY BE DUE TO AN
   INTRUSION OF DRY LOW-LEVEL AIR EVIDENT ON THE 12Z KGYX SOUNDING AND
   IN RECENT SFC DEWPOINTS AOB 10 DEG F LOCATED IN THIS AREA.

   FURTHER E ACROSS THE DISCUSSION AREA...SFC DEWPOINTS ARE GENERALLY
   HIGHER...AND A STRONG NLY/NELY FETCH OFF THE ATLANTIC SHOULD
   ENCOURAGE HIGHER SNOWFALL RATES AROUND 1 INCH/HR. A STRONG PRESSURE
   GRADIENT AND NELY LOW-LEVEL JET...PARTICULARLY OVER SERN MA
   INCLUDING THE CAPE/ISLANDS...WILL CONTINUE TO PROMOTE NEAR-BLIZZARD
   TO BLIZZARD CONDITIONS ACROSS THIS REGION. RECENT SFC OBSERVATIONS
   INDICATE REDUCTIONS IN VISIBILITY AOB 1/4 MI WITH HEAVY SNOW AND
   SUSTAINED WINDS OF 20-35 KT...WITH GUSTS UP TO 45 KT AT KACK.

   ..GLEASON.. 02/08/2016


   ATTN...WFO...GYX...BOX...OKX...

   LAT...LON   40707292 41867240 42637167 43077081 42987055 42607052
               42077000 41666983 41196992 41197085 41027180 40817237
               40707292 

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Page last modified: February 08, 2016
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