DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 081648
SWODY2
SPC AC 081647

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1147 AM CDT MON OCT 08 2012

VALID 091200Z - 101200Z

...NO SVR TSTM AREAS FORECAST...

...OH VALLEY...

STRONG HEIGHT FALLS WILL SPREAD ACROSS THE UPPER MS VALLEY INTO THE
GREAT LAKES/NRN OH VALLEY TUESDAY IN RESPONSE TO DIGGING SHORT-WAVE
TROUGH. THIS FEATURE WILL INDUCE ASCENT ACROSS THE OH VALLEY AHEAD
OF ADVANCING COLD FRONT AND LATEST MODEL GUIDANCE SUGGEST MID LEVEL
SATURATION WILL OCCUR DURING THE LATTER HALF OF THE PERIOD ALONG A
NARROW CORRIDOR FROM SRN IL INTO SRN OH. GIVEN THE STEEPENING MID
LEVEL LAPSE RATES THERE WILL LIKELY BE WEAK INSTABILITY SUFFICIENT
FOR SCATTERED ELEVATED CONVECTION...SOME OF IT POSSIBLY DEEP ENOUGH
TO PRODUCE LIGHTNING.

...FL...

NW FLOW IS EXPECTED TO DEEPEN ACROSS THE NRN FL PENINSULA DURING THE
DAY2 PERIOD WHICH SHOULD DRIVE WEAK SFC BOUNDARY TOWARD THE FL
STRAITS. PRIOR TO THE WIND SHIFT DAYTIME HEATING SHOULD CONTRIBUTE
TO SUFFICIENT BUOYANCY FOR AT LEAST ISOLATED TO PERHAPS SCT TSTM
ACTIVITY.

..DARROW.. 10/08/2012

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