Monday, May 26, 2008

MESO: Mesoscale Discussion 1041

ACUS11 KWNS 260429
SWOMCD
SPC MCD 260428
ILZ000-IAZ000-MOZ000-260530-

MESOSCALE DISCUSSION 1041
NWS STORM PREDICTION CENTER NORMAN OK
1128 PM CDT SUN MAY 25 2008

AREAS AFFECTED...E-CNTRL/SERN IA...NWRN IL

CONCERNING...TORNADO WATCH 368...

VALID 260428Z - 260530Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 368 CONTINUES.

WIDESPREAD SEVERE/DAMAGING WIND THREAT CONTINUES WITH PROGRESSIVE
LEWP/BOW STRUCTURE EXTENDING FROM IOWA TO DAVIS COUNTIES AS OF
0415Z.

NUMEROUS MEASURED WIND GUSTS FROM 40 TO 55 KTS HAVE BEEN RECENTLY
REPORTED...LOCALLY AS HIGH AS 67 KTS AT DSM. GIVEN AT A LEAST
MODERATELY UNSTABLE AIR MASS OUT AHEAD OF THE LINE FUELED BY MIDDLE
60S TO LOWER 70S SURFACE DEW POINTS...AND WLY MID-LEVEL FLOW AROUND
50 TO 60 KTS /AS SAMPLED BY LATEST JOHNSTON AND SLATER IA
PROFILERS/...THE QLCS SHOULD CONTINUE TO MAINTAIN ITS CURRENT
CHARACTER AS IT PUSHES THROUGH SERN IA INTO NWRN IL. ALTHOUGH
DAMAGING WINDS WILL REMAIN THE PRIMARY THREAT...ISOLATED TORNADOES
MAY DEVELOP WITHIN THE LINE. THIS LATTER THREAT SHOULD BE FOCUSED
ALONG THE NRN END OF THE LEWP NEAR THE I-80 CORRIDOR...AIDED BY
REMNANT W/E-ORIENTED OUTFLOW BOUNDARY LOCATED FROM AROUND CID TO RFD
AT 04Z.

..GRAMS.. 05/26/2008

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

ATTN...WFO...LOT...ILX...LSX...DVN...DMX...EAX...

42018875 41508906 41168998 41009049 40349080 40199127
40309207 40559248 40929244 41629198 41909161 42049076
42209001 42138919

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