Sunday, December 11, 2011

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 111944
SWODY1
SPC AC 111941

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0141 PM CST SUN DEC 11 2011

VALID 112000Z - 121200Z

...NO SVR TSTM AREAS FORECAST...

NO CHANGES ARE MADE TO THE OUTLOOK AT 20Z.

..BROYLES.. 12/11/2011

.PREV DISCUSSION... /ISSUED 1016 AM CST SUN DEC 11 2011/

...SERN STATES...
STOUT AND PERSISTENT ENE FLOW REGIME BELOW ABOUT 700 MB WILL
MAINTAIN RISKS FOR SHOWERS AND PERHAPS ISOLD TSTMS ALONG/S OF A
FRONT SITUATED ACROSS NRN FL TODAY. HIGHER PROBABILITIES WILL
LIKELY BE ACROSS E COASTAL LOCATIONS WWD INTO CNTRL INTERIOR FL.

MEANWHILE...WATER VAPOR SHOWS EVIDENCE OF A MID-LEVEL WAVE MOVING
EWD ACROSS THE LWR MS VLY THIS MORNING. THIS FEATURE WILL EJECT ENE
ACROSS THE SERN STATES LATER TODAY/TONIGHT. MID-LVL
MOISTENING/STEEPENING H85-H5 LAPSE RATES TIED TO WAVE ASCENT WILL
RESULT IN INCREASING ELEVATED CONVECTION /BASED AOA 850 MB/ FROM NRN
FL INTO PARTS OF SERN AL AND CNTRL/SRN GA TONIGHT. ALTHOUGH CLOUD
LAYER SHEAR WILL BE SUBSTANTIAL...MEAGER AMOUNTS OF ELEVATED
BUOYANCY WILL PRECLUDE SVR HAIL RISKS.

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