SWODY1
SPC AC 010052
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0652 PM CST TUE JAN 31 2012
VALID 010100Z - 011200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS/FORECAST...
TWO-STREAM WSWLY ZONAL FLOW WILL PREVAIL OVER THE CNTRL AND ERN U.S
THROUGH EARLY WED...DOWNSTREAM FROM TROUGH AMPLIFYING SE ACROSS THE
WRN STATES. SRN STREAM IMPULSE NOW IN AZ SHOULD CONTINUE ESE TO W
TX BY THE END OF THE PERIOD...WHILE UPR MS VLY DISTURBANCE CONTINUES
E TO THE LWR GRT LKS.
EWD MOTION OF GRT LKS SYSTEM WILL MAINTAIN SW TO WSWLY LOW LVL FLOW
FROM THE LWR MS VLY TO THE CNTRL/NRN APPALACHIANS. GIVEN NRN TRACK
OF THE GRT LKS IMPULSE...HOWEVER...UPR LVL FORCING FOR ASCENT WILL
REMAIN WEAK OVER THE LWR MS AND OH VLYS. NEVERTHELESS...MODEST
MOISTURE RETURN AND PERSISTENT CONFLUENCE WITHIN THE LOW LVL WIND
MAX MAY SUPPORT SUFFICIENT DEEPENING OF EXISTING SHALLOW CONVECTION
TO YIELD SPORADIC THUNDER FROM SRN/ERN MO ENE INTO
OH/WV....ESPECIALLY LATER TNGT AND EARLY WED.
FARTHER S...SHOWERS/TSTMS ALSO MAY INCREASE IN COVERAGE LATE TNGT
AND EARLY WED FROM THE NWRN GULF OF MEXICO NEWD INTO LA...SE AR...
AND MS...AS MORE APPRECIABLE LOW LVL MOISTURE SPREADS NE INTO WEAK
WARM FRONTAL ZONE. A SEPARATE AREA OF DEVELOPMENT ALSO APPEARS
LIKELY LATE TNGT/EARLY WED OVER THE N CNTRL GULF...ALONG ERN
EXTENSION OF THE SAME SHALLOW FRONT. THE LATTER ACTIVITY MAY AFFECT
CSTL LA AND MS.
..CORFIDI.. 02/01/2012
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