SWODY1
SPC AC 080058
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0758 PM CDT MON APR 07 2008
VALID 080100Z - 081200Z
..THERE IS A SLGT RISK OF SVR TSTMS ACROSS N TX...OK...SRN KS...AND
FAR SWRN MO...
..N TX/OK/SRN KS AND VICINITY...
ISOLATED SEVERE/SUPERCELL STORMS ARE ONGOING ATTM FROM JUST S OF THE
RED RIVER NEAR SPS /WICHITA FALLS TX/ AHEAD OF THE N-S DRYLINE...AND
NWD INTO OK NEAR AND N OF THE W-E SURFACE WARM FRONT. AIRMASS
REMAINS MODERATELY UNSTABLE ACROSS N TX AND THE SRN HALF OF OK --
AIDED BY VERY STEEP MID-LEVEL LAPSE RATES...BUT BOUNDARY LAYER
MOISTURE REMAINS SOMEWHAT LIMITED...WITH GENERALLY MID TO UPPER 50S
DEWPOINTS ACROSS MOST OF THE WARM SECTOR.
GIVEN SOMEWHAT MEAGER LOW-LEVEL MOISTURE...ONLY ISOLATED TORNADO
THREAT IS EXPECTED THROUGH THE REMAINDER OF THE PERIOD. MAIN SEVERE
POTENTIAL WILL LIKELY REMAIN LARGE HAIL...WITH STEEP LAPSE RATES AND
FAVORABLE SHEAR FOR ROTATING STORMS TO PERSIST THROUGH THE END OF
THE PERIOD. THE THREAT FOR THE LARGEST HAIL THE REMAINDER OF THIS
PERIOD SHOULD REMAIN CONFINED TO SWRN OK AND ADJACENT N TX WHERE THE
GREATEST INSTABILITY IS INDICATED. HOWEVER...MOST WIDESPREAD HAIL
LATER THIS EVENING/OVERNIGHT WILL LIKELY OCCUR ACROSS AREAS
GENERALLY N OF THE WARM FRONT -- ACROSS THE NRN HALF OF OK AND INTO
SRN KS AND PERHAPS FAR SWRN MO -- AS LOW-LEVEL JET AND ASSOCIATED
ISENTROPIC LIFT INCREASE OVER THE NEXT SEVERAL HOURS.
.GOSS.. 04/08/2008
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