SWODY2
SPC AC 161651
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1051 AM CST WED FEB 16 2011
VALID 171200Z - 181200Z
...NO SVR TSTM AREAS FORECAST...
...PACIFIC COAST...
MEAN UPPER TROUGH WILL REMAIN POSITIONED ALONG THE PACIFIC COAST
INTO THE DAY2 PERIOD DESPITE ONE STRONG LEAD UPPER SHORTWAVE
EJECTING ACROSS THE GREAT BASIN INTO THE NRN PLAINS. LATEST
GUIDANCE SUGGEST MULTIPLE SIGNIFICANT UPPER VORT MAXIMA/SHORTWAVE
TROUGHS WILL ROTATE INTO THE BASE OF THE LARGE SCALE TROUGH BEFORE
MOVING INLAND. EACH OF THESE FEATURES WILL UNDOUBTEDLY ENHANCE
LARGE SCALE ASCENT AND FOCUS AT LEAST SHALLOW CONVECTION ALONG
CONVERGENT PROGRESSIVE LOW LEVEL BOUNDARIES. AT THIS TIME IT
APPEARS INSTABILITY WILL REMAIN WEAK THUS CONVECTION CAPABLE OF
PENETRATING LEVELS NECESSARY FOR LIGHTNING PRODUCTION SHOULD REMAIN
CONFINED TO MORE BUOYANT AREAS NEAR THE COAST...OR MORE LIKELY JUST
OFFSHORE...AND PRIMARILY NORTH OF 35N LAT.
..DARROW.. 02/16/2011
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