DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 021718
SWODY2
SPC AC 021716

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1216 PM CDT TUE OCT 02 2012

VALID 031200Z - 041200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
LARGE-SCALE UPPER-LEVEL TROUGH FROM THE MID-MS VALLEY TO THE WRN
GULF COAST WILL EJECT NEWD AS A SHORT WAVE TROUGH OVER THE CANADIAN
ROCKIES DIGS ACROSS THE NRN PLAINS. A SHARP COLD FRONT ATTENDANT TO
THE LATTER TROUGH WILL SWEEP S/SEWD ACROSS THE NRN/CNTRL PLAINS. IN
THE EAST...A COLD FRONT WILL DECAY E OF THE APPALACHIANS.

...NORTHEAST...
MEAGER BUOYANCY MAY BE SUFFICIENT FOR ISOLATED TSTMS WED AFTERNOON
ALONG THE DISSIPATING COLD FRONT. WITH WEAK MID-LEVEL HEIGHT FALLS
NOT EXPECTED TO OVERSPREAD THE FRONT UNTIL LATE IN THE PERIOD...POOR
MID/UPPER-LEVEL LAPSE RATES WILL PERSIST IN THE WARM SECTOR. THESE
FACTORS SHOULD LIMIT THE POTENTIAL FOR ORGANIZED SEVERE TSTMS.

...CNTRL PLAINS TO THE MID-MO VALLEY...
DESPITE RELATIVELY POOR MOISTURE RETURN AHEAD OF THE APPROACHING
COLD FRONT...POST-FRONTAL/ELEVATED TSTMS MAY FORM THU NIGHT WITH
POTENTIAL SATURATION NEAR 700 MB. BUOYANCY SHOULD BE SCANT BUT STEEP
LAPSE RATES AND MODERATE CLOUD-BEARING SHEAR COULD YIELD SMALL HAIL.

..GRAMS.. 10/02/2012

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