SWOMCD
SPC MCD 110150
KYZ000-ILZ000-MOZ000-110315-
MESOSCALE DISCUSSION 0872
NWS STORM PREDICTION CENTER NORMAN OK
0850 PM CDT SAT MAY 10 2008
AREAS AFFECTED...ECNTRL/SERN MO...FAR W KY...SWRN IL
CONCERNING...SEVERE THUNDERSTORM WATCH 301...
VALID 110150Z - 110315Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 301
CONTINUES.
UPR TROUGH AXIS AND ASSOCD COOLING ALOFT CONTINUE TO SWING EWD INTO
THE MID-MS VLY THIS EVENING. NUMEROUS TSTMS CONTINUE TO THRIVE IN A
STRONG WARM ADVECTION PROFILE AHEAD OF THIS SYSTEM. VWP FROM ST.
LOUIS EXHIBITED ABOUT 50 KTS OF EFFECTIVE VERTICAL SHEAR...
SUPPORTIVE OF SUPERCELL STORMS. MID-LEVEL LAPSE RATES WILL CONTINUE
TO IMPROVE THROUGH THE EVENING AND SUSTAINED STORMS WILL LIKELY GIVE
LARGE HAIL. ACTIVITY SHOULD REMAIN SLIGHTLY ELEVATED...BUT
SUFFICIENT UNCERTAINTY EXISTS ON THE LOWER LEVEL OF EFFECTIVE
PARCELS FEEDING STORMS THAT AN ISOLD TORNADO CANNOT BE RULED
OUT...ESPECIALLY ACROSS SERN MO INTO SWRN IL/FAR W KY.
..RACY.. 05/11/2008
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...PAH...LSX...
36679042 38689179 38698994 37068864 36738893
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