[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 131839
SWOMCD
SPC MCD 131839 
ILZ000-WIZ000-IAZ000-131945-

MESOSCALE DISCUSSION 1645
NWS STORM PREDICTION CENTER NORMAN OK
0139 PM CDT TUE JUL 13 2004

AREAS AFFECTED...NORTHERN IL

CONCERNING...TORNADO WATCH 619...

VALID 131839Z - 131945Z

SEVERE THUNDERSTORMS ARE RAPIDLY DEVELOPING ON THE OUTFLOW FROM THE
INTENSE TORNADIC SUPERCELL NOW MOVING SEWD THRU LA SALLE COUNTY. 
THESE NEW STORMS IN SRN LEE AND NRN BUREAU COUNTY ARE IN A VERY
FAVORABLE ENVIRONMENT TO BECOME POTENTIALLY TORNADIC SUPERCELLS AS
WELL.  THE AIR MASS FEEDING THE STORMS FROM THE WEST IS EXTREMELY
UNSTABLE WITH MLCAPES IN EXCESS OF 4000 J/KG ALONG WITH 30-40 KT OF
DEEP LAYER SHEAR.

..HALES.. 07/13/2004

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

ATTN...WFO...LOT...ILX...MKX...DVN...ARX...

40348763 40329074 42549185 42558848 

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