DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 271722
SWODY2
SPC AC 271721

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1121 AM CST THU FEB 27 2014

VALID 281200Z - 011200Z

...NO SVR TSTM AREAS FORECAST...

...CALIFORNIA...
AN UPPER-LEVEL LOW AND ASSOCIATED UPPER-LEVEL TROUGH WILL APPROACH
CA ON FRIDAY. THE EXIT REGION OF A 90 TO 100 KT MID-LEVEL JET
ROUNDING THE BASE OF THE SYSTEM...WILL OVERSPREAD CNTRL AND SRN CA.
THIS WILL RESULT IN STRONG LARGE-SCALE ASCENT FRIDAY ACROSS MUCH OF
SRN AND CNTRL CA. IN ADDITION...THE MID-LEVEL JET COUPLED WITH A 40
TO 50 KT LOW-LEVEL JET WILL PROVIDE STRONG DEEP LAYER SHEAR WHICH
SHOULD BE SUFFICIENT FOR A MARGINAL SEVERE THREAT DURING THE DAY.
FORECAST SOUNDINGS NEAR SACRAMENTO SSEWD INTO THE LA BASIN SHOW
0-1KM SHEAR INCREASING TO 25 TO 30 KT SUGGESTING A FEW ROTATING
STORMS MAY DEVELOP BY FRIDAY AFTERNOON. THE GREATEST POTENTIAL FOR A
MARGINAL TORNADO THREAT WOULD EXIST WITH STORMS THAT MOVE ONSHORE IN
THE LA BASIN WHERE SFC DEWPOINTS WILL BE IN THE 55 TO 60 F RANGE AND
LCL HEIGHTS ARE FORECAST TO BE BELOW 400 METERS. STRONG GUSTY WINDS
AND HAIL WILL ALSO BE POSSIBLE IN AREAS THAT SUFFICIENTLY HEAT UP
DURING THE LATE MORNING AND EARLY AFTERNOON.

..BROYLES.. 02/27/2014

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