SWOMCD
SPC MCD 201904
MEZ000-MAZ000-NHZ000-202030-
MESOSCALE DISCUSSION 1039
NWS STORM PREDICTION CENTER NORMAN OK
0204 PM CDT SUN JUN 20 2010
AREAS AFFECTED...ERN AND ERN ME...SRN NH...ERN MA
CONCERNING...SEVERE THUNDERSTORM WATCH 356...
VALID 201904Z - 202030Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 356
CONTINUES.
THREAT FOR MAINLY ISOLATED DAMAGING WIND CONTINUES WITH PRIMARY
THREAT EXPECTED TO PERSIST THROUGH UNTIL ABOUT 2030-21Z.
A PRE-FRONTAL LINE OF STORMS WITH EMBEDDED DISCRETE CELLS AND
OCCASIONAL BOWING SEGMENTS IS MOVING SEWD THROUGH SRN AND ERN ME AT
AROUND 20-25 KT. OTHER MORE DISCRETE CELLS ARE DEVELOPING FROM PARTS
OF SRN NH INTO MA...CT AND RI. ATMOSPHERE REMAINS MODERATELY
UNSTABLE WITH 1500-2000 J/KG MLCAPE LOCATED FROM SRN NEW ENGLAND
INTO SRN AND ERN ME. STORMS WILL REMAIN CAPABLE OF PRODUCING
ISOLATED STRONG TO DAMAGING WIND GUSTS AS THIS RESERVOIR OF
INSTABILITY IS OVERTURNED.
OTHER STORMS ARE DEVELOPING FARTHER NORTH FROM NRN VT...NRN NH INTO
NRN ME BEHIND MAIN CONVECTIVE LINE WHERE INSTABILITY IS MORE
LIMITED. ANY SEVERE THREAT WITH THIS ACTIVITY IS EXPECTED TO REMAIN
MARGINAL.
..DIAL.. 06/20/2010
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...CAR...GYX...BOX...
LAT...LON 44996892 45426800 45166754 44486806 44126917 43187055
42287085 42087197 42317246 43697160 44996892
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