SWOMCD
SPC MCD 241504
OKZ000-KSZ000-TXZ000-241700-
MESOSCALE DISCUSSION 0558
NWS STORM PREDICTION CENTER NORMAN OK
1004 AM CDT TUE APR 24 2007
AREAS AFFECTED...WRN AND CENTRAL KS...WRN AND CENTRAL OK
CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY
VALID 241504Z - 241700Z
SEVERE/TORNADO THREAT WILL CONTINUE SLOWLY INCREASING THROUGH THIS
MORNING/AFTERNOON. TORNADO WATCHES WILL LIKELY BE REQUIRED IN THE
NEXT 1-2 HOURS -- LIKELY FIRST IN KS AND THEN SWD INTO OK.
LATEST VISIBLE SATELLITE IMAGERY SHOWS SOME BREAKS IN THE CLOUD
SHIELD JUST AHEAD OF THE COLD FRONT...WHICH IS NOW MOVING ACROSS
SWRN KS/WRN OK. HEATING WILL CONTINUE TO SLOWLY INCREASE...WHICH
WILL PUSH MEAN-LAYER CAPE INTO THE 1500 TO 2000 J/KG RANGE GIVEN
MOIST BOUNDARY LAYER IN PLACE /LOW TO MID 60S DEWPOINTS/.
WHILE DEEP-LAYER WIND FIELD WILL REMAIN SOMEWHAT
MERIDIONAL...STRENGTH OF FLOW WILL YIELD DEEP-LAYER SHEAR SUFFICIENT
FOR SUPERCELLS. AS CLOUDS SLOWLY ERODE AND INSTABILITY CREEPS
UPWARD...AND HEIGHT FALLS CONTINUE TO SHIFT GRADUALLY EWD AHEAD OF
UPPER TROUGH...EXPECT A SLOW INCREASE IN SEVERE THREAT WITH TIME --
INCLUDING THE POTENTIAL FOR LARGE HAIL AND LOCALLY-DAMAGING WINDS
ALONG WITH A FEW TORNADOES.
.GOSS.. 04/24/2007
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...TSA...TOP...ICT...OUN...GID...DDC...GLD...
38950200 39740011 39639743 37859685 35699709 34029791
34199965 36479922 37640067 37880197
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