SWODY1
SPC AC 150100
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0800 PM CDT WED APR 14 2010
VALID 150100Z - 151200Z
...NO SVR TSTM AREAS FORECAST...
...SRN HIGH PLAINS THROUGH CNTRL PLAINS...
TRAILING PORTIONS OF FRONTAL ZONE IS LIFTING NWD AS A WARM FRONT
THROUGH ERN AND SWRN NEB AND ERN CO. A FEW STORMS CONTINUE IN
VICINITY OF THIS BOUNDARY. OTHER STORMS ARE SPREADING OFF THE HIGHER
TERRAIN INTO THE SRN PLAINS OF ERN NM AND WRN TX. OBJECTIVE ANALYSIS
AND RAOB DATA INDICATE A NARROW AXIS OF 400-800 J/KG MLCAPE FROM ERN
NM NEWD THROUGH WRN KS...SERN NB INTO THE UPPER MS VALLEY AREA WITH
THE STRONGER INSTABILITY OVER THE SRN HIGH PLAINS.
STORMS DEVELOPING OVER THE SRN HIGH PLAINS ARE EMBEDDED WITHIN WEAK
VERTICAL SHEAR...BUT MAY REMAIN CAPABLE OF PRODUCING ISOLATED STRONG
WIND GUSTS AND MARGINALLY SEVERE HAIL INTO MID EVENING. OVERALL
TREND SHOULD BE FOR THIS ACTIVITY TO WEAKEN AS THE BOUNDARY LAYER
STABILIZES.
...MID-UPPER MS VALLEY AREA...
STORMS COULD UNDERGO SOME INCREASE IN COVERAGE AND INTENSITY FARTHER
NE ACROSS IA...SERN NEB AND WRN WI AS THE LOW LEVEL JET STRENGTHENS
THIS EVENING. ACTIVITY WILL INITIALLY BE EMBEDDED WITHIN VERTICAL
SHEAR SUFFICIENT FOR UPDRAFT ROTATION. HOWEVER...WEAK INSTABILITY
WILL SERVE AS A LIMITING FACTOR FOR ORGANIZED SEVERE STORMS...AND
EFFECTIVE SHEAR SHOULD GRADUALLY DECREASE AS THE BOUNDARY LAYER
DECOUPLES.
..DIAL.. 04/15/2010
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