DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 190608
SWODY2
SPC AC 190607

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1207 AM CST TUE NOV 19 2013

VALID 201200Z - 211200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...

A BROAD LOW AMPLITUDE CYCLONIC FLOW REGIME WILL CHARACTERIZE THE
UPPER PATTERN WEDNESDAY. A SERIES OF IMPULSES WILL MOVE THROUGH THIS
REGIME INCLUDING A SHORTWAVE TROUGH FORECAST TO ADVANCE FROM THE
CNTRL PLAINS INTO THE GREAT LAKES. A NRN STREAM TROUGH NOW MOVING
INTO BRITISH COLUMBIA WILL CONTINUE THROUGH THE NRN PLAINS AND UPPER
MS VALLEY...USHERING IN A SURGE OF CP AIR. BY THE END OF THIS PERIOD
THE COLD FRONT DELINEATING THE LEADING EDGE OF THIS AIR MASS SHOULD
EXTEND FROM THE WRN GREAT LAKES SWWD THROUGH KS AND THE TX
PANHANDLE. FARTHER WEST...A SRN STREAM TROUGH WILL BEGIN THE
AMPLIFICATION PROCESS OVER THE SWRN STATES.

...SRN AND CNTRL PLAINS INTO THE MID MS VALLEY AREAS...

ELEVATED CONVECTION WILL LIKELY BE ONGOING WEDNESDAY MORNING FROM
ERN KS INTO THE MID MS VALLEY REGION WITHIN ZONE OF ASCENT AND
DESTABILIZATION ASSOCIATED WITH A SWLY LLJ AND PROGRESSIVE LOW
AMPLITUDE SHORTWAVE TROUGH. THIS ACTIVITY WILL GRADUALLY SHIFT NEWD
TOWARD THE GREAT LAKES. MEANWHILE...BOUNDARY LAYER MOISTENING WILL
CONTINUE OVER THE SRN PLAINS AS 60S DEWPOINTS ARE ADVECTED NWD
THROUGH TX. POTENTIAL WILL EXIST FOR ADDITIONAL ELEVATED STORMS TO
DEVELOP OVERNIGHT FROM OK...KS INTO THE MID MS VALLEY AS THE
ATMOSPHERE UNDERGOES MODEST DESTABILIZATION WITHIN THE MOISTURE
TRANSPORT ZONE.

...SRN FL...

SHOWERS AND A FEW THUNDERSTORMS WILL REMAIN POSSIBLE IN VICINITY OF
FRONT EXPECTED TO STALL ACROSS SRN FL...WITH GREATEST THUNDERSTORM
CHANCES DURING THE AFTERNOON AND EVENING.

..DIAL.. 11/19/2013

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