MESO: Mesoscale Discussion 0939

ACUS11 KWNS 022027
SWOMCD
SPC MCD 022026
MEZ000-NHZ000-MAZ000-CTZ000-VTZ000-NYZ000-022200-

MESOSCALE DISCUSSION 0939
NWS STORM PREDICTION CENTER NORMAN OK
0326 PM CDT SUN JUN 02 2013

AREAS AFFECTED...SERN NY AND NEW ENGLAND

CONCERNING...SEVERE THUNDERSTORM WATCH 271...

VALID 022026Z - 022200Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 271
CONTINUES.

SUMMARY...GREATEST DAMAGING WIND THREAT SHOULD EXIST THROUGH 22Z
WITH LINE SEGMENT SURGING E/NEWD FROM NH INTO WRN/SRN ME THROUGH THE
HEART OF WW 271. MORE ISOLATED DAMAGING WIND AND SEVERE HAIL IS
ANTICIPATED ACROSS AREAS FARTHER N AND S OF THIS QLCS.

DISCUSSION...SURGING QLCS CROSSING NH AS OF 2015Z HAD A HISTORY OF
NUMEROUS DAMAGING WIND REPORTS EARLIER IN VT. MEASURED WIND GUSTS OF
35-40 KT HAVE OCCURRED SINCE 19Z IN AREA METARS. HOWEVER...MOST
HIGHER REFLECTIVITY CORES IN THE MID-LEVELS HAVE WEAKENED IN THE
PAST HALF HOUR SUGGESTING OVERALL THREAT HAS PEAKED. STILL...WITH
MIDDLE 80S TO LOWER 90S SURFACE TEMPERATURES IMMEDIATELY AHEAD OF
THE LINE...A CONTINUED RISK FOR DAMAGING WINDS WILL PERSIST
NEAR-TERM. WITH TIME...ACTIVITY SHOULD FURTHER WEAKEN AS IT
ENCOUNTERS THE MARINE LAYER WHERE DOWNSTREAM TEMPERATURES HAVE
DROPPED INTO THE 60S TO LOWER 80S ACROSS MOST OF SRN/ERN/COASTAL ME.

..GRAMS.. 06/02/2013

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...CAR...GYX...BOX...BTV...ALY...BGM...

LAT...LON 47316834 46786756 45986773 44946892 43947002 42287179
41887248 41737359 41867459 42247447 42817388 43517227
45347092 47146941 47316834

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