SWODY1
SPC AC 291948
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0248 PM CDT TUE MAY 29 2007
VALID 292000Z - 301200Z
..THERE IS A SLGT RISK OF SVR TSTMS ACROSS THE CENTRAL HIGH
PLAINS...
..CENTRAL HIGH PLAINS...
LARGE-SCALE UVV CONTINUES TO INCREASE ACROSS CO AHEAD OF SHORT-WAVE
TROUGH S OF MAIN UPPER CIRCULATION CENTER NOW OVER NRN WY. IN
RESPONSE...STORM DEVELOPMENT CONTINUES INVOF THE CO FRONT
RANGE...AND NEWD ACROSS WRN NEB ALONG SURFACE BOUNDARY.
WITH 1500 TO 2500 J/KG MEAN-LAYER CAPE NOW INDICATED ACROSS ERN CO
AND INTO WRN KS/WRN NEB...EXPECT STORMS TO CONTINUE/INCREASE THROUGH
THIS AFTERNOON...AND THEN SHIFT ESEWD ACROSS SRN NEB/KS/POSSIBLY OK
AS LOW-LEVEL JET INTENSIFIES AFTER DARK.
AS STRONGER MID-LEVEL FLOW SPREADS EWD ACROSS THE CENTRAL HIGH
PLAINS...SHEAR WILL BECOME MORE CONDUCIVE WITH TIME FOR
SEVERE/SUPERCELL STORMS. ALONG WITH THE THREAT FOR LARGE
HAIL...DAMAGING WINDS AND A COUPLE OF TORNADOES WILL ALSO BE
POSSIBLE. GREATEST OVERALL THREAT IS ANTICIPATED FROM LATER THIS
AFTERNOON THROUGH LATE EVENING ACROSS ERN CO AND INTO WRN KS/SWRN
NEB. WHILE STORMS SHOULD CONTINUE/SPREAD ESEWD OVERNIGHT...SEVERE
THREAT SHOULD GRADUALLY DIMINISH IN CONJUNCTION WITH DIURNAL
STABILIZATION.
..UPPER MS VALLEY REGION SWWD INTO THE MID MO VALLEY...
SCATTERED THUNDERSTORMS CONTINUE ACROSS THIS REGION...ALONG AND
AHEAD OF SURFACE FRONT WHERE MOIST AIRMASS COMBINED WITH LIMITED
HEATING HAS RESULTED IN 500 TO 1500 J/KG MEAN-LAYER CAPE. MODERATE
SLY/SWLY FLOW ALOFT WILL CONTINUE TO SUPPORT ISOLATED
STRONGER/MULTICELL STORMS...WITH A FEW OF THE STRONGER STORMS
CAPABLE OF PRODUCING HAIL/LOCALLY-DAMAGING WINDS THROUGH MID
EVENING.
.GOSS.. 05/29/2007
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