Monday, August 20, 2007

MESO: Mesoscale Discussion 1822

ACUS11 KWNS 202327
SWOMCD
SPC MCD 202327
MOZ000-IAZ000-KSZ000-NEZ000-210130-

MESOSCALE DISCUSSION 1822
NWS STORM PREDICTION CENTER NORMAN OK
0627 PM CDT MON AUG 20 2007

AREAS AFFECTED...NORTHEAST KS/NORTHWEST MO

CONCERNING...SEVERE POTENTIAL...WATCH NEEDED SOON

VALID 202327Z - 210130Z

ENVIRONMENTAL CONDITIONS HAVE BECOME FAVORABLE FOR SEVERE STORMS AND
A WATCH ISSUANCE WILL BE COORDINATED BETWEEN THE SPC AND THE
AFFECTED LOCAL NATIONAL WEATHER SERVICE OFFICES SHORTLY.

ARCING BAND OF SEVERE STORMS CONTINUE TO ORGANIZE ACROSS SOUTHEAST
NEB/NORTH CENTRAL KS EARLY THIS EVENING...AND IT APPEARS WITH
CONTINUED ORGANIZATION/COMPOSITING OF MESOSCALE COLD POOLS...A
SEVERE THREAT MAY EXPAND ACROSS PORTIONS OF NORTHEAST KS/NORTHWEST
MO THIS EVENING...WITH A DISTINCT RISK OF DAMAGING WINDS/LARGE HAIL.

SPECIAL 18Z RAOB FROM TOPEKA SAMPLED AN EXTREMELY UNSTABLE
DOWNSTREAM AIRMASS ACROSS NORTHEAST KS INTO NORTHWEST MO...WITH
MLCAPE IN EXCESS OF 5000 J/KG. A WATCH IS LIKELY SOON.

.GUYER.. 08/20/2007

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

ATTN...WFO...DMX...EAX...OAX...TOP...

38679733 39909687 40779519 40649416 39539393 38489511

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