SWOMCD
SPC MCD 020235
MNZ000-IAZ000-SDZ000-NEZ000-020430-
MESOSCALE DISCUSSION 1778
NWS STORM PREDICTION CENTER NORMAN OK
0935 PM CDT WED SEP 01 2010
AREAS AFFECTED...ERN SD
CONCERNING...SEVERE THUNDERSTORM WATCH 640...
VALID 020235Z - 020430Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 640
CONTINUES.
SEVERE THREAT CONTINUES ACROSS ERN SD/WW 640.
RADAR LOOP CONTINUES TO SHOW SCATTERED STRONG/SEVERE STORMS ONGOING
AHEAD OF THE COLD FRONT MOVING SEWD ACROSS SD ATTM. GREATEST STORM
COVERAGE EXISTS ACROSS THE NERN QUARTER OF SD...WHERE WEAKER
INSTABILITY IS INDICATED. HERE...STORMS CONTINUE TO SPREAD EWD ATOP
AN INCREASINGLY STABLE BOUNDARY LAYER...WHICH WITH TIME SHOULD TEND
TO LIMIT DAMAGING WIND POTENTIAL. IN THE MEAN TIME...A FEW OF THE
STRONGER/ROTATING CELLS CONTINUE TO POSE A THREAT FOR DAMAGING WINDS
ALONG WITH LARGE HAIL.
FARTHER S...MORE ISOLATED CELLS PERSIST WITHIN MODERATELY UNSTABLE
ENVIRONMENT. WHILE STORMS HAVE REMAINED SUB-SEVERE ACROSS SERN
SD...DEGREE OF INSTABILITY AND AMPLE SHEAR SUGGESTS ISOLATED SEVERE
THREAT PERSISTS ACROSS THIS REGION.
..GOSS.. 09/02/2010
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...MPX...FSD...OAX...ABR...LBF...
LAT...LON 42799922 44779859 45819722 45639633 42859665 42799922
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