SWOMCD
SPC MCD 280331
INZ000-ILZ000-280500-
MESOSCALE DISCUSSION 1977
NWS STORM PREDICTION CENTER NORMAN OK
1031 PM CDT THU AUG 27 2009
AREAS AFFECTED...EAST CENTRAL IL/WEST CENTRAL INDIANA
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 280331Z - 280500Z
AN ISOLATED/BRIEF TORNADO CANNOT BE RULED OUT INTO THE OVERNIGHT
ACROSS PORTIONS OF EAST CENTRAL IL INTO WEST CENTRAL INDIANA. A
WATCH IS NOT ANTICIPATED. OTHERWISE...HEAVY RAINFALL WILL REMAIN THE
PRIMARY CONCERN.
SEVERAL STORMS CONTINUE TO EXHIBIT EPISODIC BOUTS OF LOW LEVEL
ROTATION ACROSS EAST CENTRAL IL IN VICINITY OF A
QUASI-STATIONARY/WARM FRONT THAT ROUGHLY PARALLELS I-74. DERIVED
WIND PROFILE DATA FROM LINCOLN WSR-88D VWP/WLC PROFILER REFLECTS
ONLY MODEST DEEP LAYER SHEAR/LOW LEVEL SRH...HOWEVER THE EXISTENCE
OF THE ROUGHLY WEST-EAST FRONT AND A VERY MOIST AIRMASS /AROUND 70F
SURFACE DEWPOINTS/ COULD BE SUFFICIENT FOR SEMI-SUSTAINED LOW LEVEL
MESOCYCLONES/PERHAPS A BRIEF TORNADO.
..GUYER.. 08/28/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...IND...LOT...ILX...
LAT...LON 40508893 40398677 39368679 39678864 40508893
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