SWOMCD
SPC MCD 032232
ARZ000-LAZ000-TXZ000-OKZ000-032330-
MESOSCALE DISCUSSION 0543
NWS STORM PREDICTION CENTER NORMAN OK
0532 PM CDT THU APR 03 2008
AREAS AFFECTED...SERN OK/N CENTRAL AND NERN TX/SWRN AR
CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY
VALID 032232Z - 032330Z
STORMS ARE INCREASING ACROSS PARTS OF N TX AND INTO ADJACENT SERN OK
WITHIN ENVIRONMENT FAVORABLE FOR SUPERCELLS. NEW TORNADO WATCH WILL
LIKELY BE REQUIRED.
MOIST/UNSTABLE AIRMASS IS EVIDENT ALONG AND JUST AHEAD OF NE TO
SW-ORIENTED DRYLINE EXTENDING FROM CENTRAL OK SWWD INTO WRN N TX.
FURTHER E...PERSISTENT CLOUD COVER ACROSS PARTS OF N CENTRAL AND
NERN TX AND INTO SERN OK HAS HINDERED BOUNDARY-LAYER
HEATING/DESTABILIZATION TO SOME DEGREE. HOWEVER...AS SLY LOW-LEVEL
FLOW INCREASES OVER THE NEXT SEVERAL HOURS...FURTHER DESTABILIZATION
ATOP THE CLOUDY BOUNDARY LAYER IS EXPECTED.
STORMS WILL CONTINUE TO DEVELOP ALONG THE DRYLINE FROM S CENTRAL OK
SWWD INTO N TX...WITH SHEAR QUITE FAVORABLE FOR SUPERCELLS. THESE
STORMS WILL MOVE ENEWD WITH TIME...AND EVENTUALLY SHIFT OUT OF WW
153 INTO N CENTRAL TX. FURTHER...AS FRONT OVERTAKES THE DRYLINE
LATER THIS EVENING...EXPECT A FURTHER INCREASE IN STORM COVERAGE --
ESPECIALLY NEAR AND N OF THE FRONT IN CONJUNCTION WITH INCREASING
LOW-LEVEL JET.
WITH SOMEWHAT LESS UNSTABLE BOUNDARY LAYER ACROSS THIS REGION BUT
STEEP LAPSE RATES ALOFT...PRIMARY THREAT WILL LIKELY BE LARGE HAIL.
LOCALLY-DAMAGING WINDS AND A TORNADO OR TWO WILL BE POSSIBLE --
PARTICULARLY LATE THIS AFTERNOON AND EARLY THIS EVENING.
.GOSS.. 04/03/2008
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...LZK...SHV...TSA...FWD...OUN...
32059830 34059704 34799248 33499289 32549459 31969746
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