SPC AC 281727
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1127 AM CST WED NOV 28 2007
VALID 291200Z - 301200Z
...NO TSTM AREAS FORECAST...
...SYNOPSIS...
IN WAKE OF THE SHORTWAVE TROUGH MOVING ACROSS THE NERN QUARTER OF
THE COUNTRY DURING THE NEXT 24-HRS...A BROADLY CYCLONIC UPR FLOW
REGIME WILL PERSIST ACROSS THE LWR 48. OTHER IMPULSES WILL DIG SEWD
FROM THE GULF OF AK INTO THE PAC NW BY EARLY FRIDAY...WITHIN AN
ENERGETIC POLAR BRANCH.
IN THE LWR LEVELS...A SFC RIDGE WILL BUILD SWD FOLLOWING THE NERN
STATES TROUGH THROUGH THE DAY THURSDAY...FORCING A COLD FRONT SEWD
OFF THE ATLANTIC SEABOARD AND INTO CNTRL FL. BEHIND THE FRONT...A
FRESH CP AIR MASS WILL PRECLUDE TSTM PROBABILITIES...EXCEPT POSSIBLY
DOWNWIND OF LAKE HURON WHERE ISOLD STRIKES WILL BE POSSIBLE.
ELSEWHERE...MOIST BOUNDARY LAYER WILL EXIST S OF THE FRONT IN FL AND
MAY RESULT IN A FEW SHOWERS. WARM MID-LEVEL TEMPERATURES/POOR LAPSE
RATES WILL KEEP TSTM CHANCES AT A MINIMUM...HOWEVER.
LASTLY...COOL MID-LEVEL TEMPERATURES LESS THAN MINUS 30 DEG C WILL
SPREAD SEWD INTO THE PAC NW IN ASSOCIATION WITH THE DIGGING GULF OF
AK TROUGH. ATTM...IT APPEARS THAT TSTMS...IF ANY...WILL BE
RELATIVELY SPARSE AND BELOW A 10 PERCENT GENERAL TSTM PROBABILITY.
..RACY.. 11/28/2007
CLICK TO GET WUUS02 PTSDY2 PRODUCT
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 0800Z
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