MESOSCALE DISCUSSION 0364
NWS STORM PREDICTION CENTER NORMAN OK
0606 PM CST THU APR 03 2003
AREAS AFFECTED...SWRN AND CENTRAL OK...NW TX
CONCERNING...SEVERE THUNDERSTORM WATCH 83...
VALID 040006Z - 040130Z
PARAMETERS REMAIN FAVORABLE FOR STORM ROTATION OVER SWRN INTO
CENTRAL OK WITH ANY SUSTAINED UPDRAFTS. LARGE HAIL IS THE
PRIMARY THREAT.
REGIONAL RADARS SHOW A SEVERE STORM OVER FAR ERN KIOWA COUNTY
MOVING INTO SRN CADDO COUNTY. MESO-ANALYSES OVER THE LAST FEW
HOURS INDICATE THAT THE DRY LINE HAS REMAINED QUASI-STATIONARY
OVER FAR WRN OK...WITH A MODERATELY UNSTABLE AIR MASS EWD INTO
CENTRAL OK. WIND PROFILERS SHOW LOW-LEVEL FLOW OVER
OK/CENTRAL-ERN KS HAS BACKED TO A MORE SLY DIRECTION DURING THE
LAST 2-3 HOURS...AS AN UPPER TROUGH MOVES INTO THE OK/TX
PANHANDLES AND WRN KS. THIS HAS INCREASED THE LOW-MID
DIRECTIONAL SHEAR...AND COMBINED WITH STRONG DEEP LAYER
SHEAR...THE SEVERE STORM MOVING INTO CENTRAL OK IS EXPECTED TO
REMAIN A SUPERCELL FOR THE NEXT 1-2 HOURS.
..PETERS.. 04/04/2003
ATTN...WFO...FWD...OUN...SJT...
35779988 35819843 35809728 34549700 33059682 32999820
33059933 34299959
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