SPC AC 220550
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1250 AM CDT THU OCT 22 2009
VALID 231200Z - 241200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
AN UPPER TROUGH WILL CONTINUE MOVING ACROSS THE CENTRAL U.S. THIS
PERIOD...AND WILL REMAIN THE PRIMARY FEATURE OF INTEREST AS RIDGING
PREVAILS ELSEWHERE -- ACROSS THE WRN AND ERN STATES.
AT THE SURFACE...LOW PRESSURE ASSOCIATED WITH THE UPPER TROUGH WILL
MOVE NEWD ACROSS THE MID MS VALLEY INTO THE UPPER GREAT LAKES
REGION...WHILE THE TRAILING COLD FRONT CONTINUES MOVING EWD ACROSS
THE ERN PORTION OF THE COUNTRY BETWEEN THE MS VALLEY AND THE
APPALACHIANS THROUGH THE END OF THE PERIOD.
...CENTRAL GULF COAST REGION...
A MOIST BOUNDARY LAYER BUT VERY WEAK LAPSE RATES ALOFT WILL LIKELY
CHARACTERIZE THE PRE-FRONTAL ENVIRONMENT ACROSS THE SOUTHEAST...WITH
ONGOING SHOWERS AND STORMS SPREADING EWD ACROSS MS/AL/THE FL
PANHANDLE AND INTO GA THROUGH THE DAY. THE OVERALL LACK OF
FAVORABLE THERMODYNAMICS SHOULD LIMIT THE POTENTIAL FOR
STRONGER/ORGANIZED STORMS. HOWEVER...WITH 0-1 KM SHEAR LIKELY
SUPPORTIVE OF LOW-LEVEL ROTATION...WILL MAINTAIN A LOW-PROBABILITY
THREAT AREA TO ACCOUNT FOR THE POSSIBILITY OF A BRIEF TORNADO OR TWO
-- PRIMARILY DURING THE AFTERNOON HOURS FROM SERN MS/SRN AL INTO THE
FL PANHANDLE.
..GOSS.. 10/22/2009
CLICK TO GET WUUS02 PTSDY2 PRODUCT
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 1730Z
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