[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 032240
SWOMCD
SPC MCD 032239 
ILZ000-WIZ000-IAZ000-032345-

MESOSCALE DISCUSSION 1862
NWS STORM PREDICTION CENTER NORMAN OK
0539 PM CDT TUE AUG 03 2004

AREAS AFFECTED...CENTRAL/ERN IA AND NWRN IL

CONCERNING...TORNADO WATCH 698...

VALID 032239Z - 032345Z

TORNADOES POSSIBLE AND DAMAGING WINDS ARE LIKELY...ESPECIALLY ACROSS
 CENTRAL IA THROUGH 00Z.

A LINE OF SUPERCELLS WAS MOVING ESEWD AT 25 KT THROUGH CENTRAL IA.
EXTREME INSTABILITY/MLCAPES NEAR 4500 J/KG/...1KM SRH FROM 100-150
M2/S2 AND A VERY MOIST BOUNDARY FAVOR TORNADOES IN STORMS THAT DO
NOT BECOME OUTFLOW DOMINANT. WIND DAMAGE IS LIKELY IN ALL OTHER
STORMS. GIVEN THE EXTREME INSTABILITY AND LINEAR NATURE OF THE
STORMS...EXPECT SYSTEM TO BEGIN ACCELERATING SEWD DURING THE NEXT
HOUR OR SO...WITH THE WIND THREAT POSSIBLY BECOMING MORE DAMAGING AS
IT MOVES INTO ERN IA.

..IMY.. 08/03/2004

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

ATTN...WFO...ILX...MKX...DVN...ARX...DMX...

42749263 42508974 40748983 40689389 41459396 

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