Wednesday, January 25, 2012

DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 250951
SWOD48
SPC AC 250950

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0350 AM CST WED JAN 25 2012

VALID 281200Z - 021200Z

...DISCUSSION...
MEDIUM-RANGE MODELS IN GENERAL AGREEMENT THROUGH LATER STAGES OF THE
PERIOD IN LATEST RUNS...WITH INITIAL LARGE-SCALE UPPER
TROUGHING/CYCLONIC FLOW OVER THE ERN 2/3 OF THE CONUS. AN
ASSOCIATED SURFACE COLD FRONT SHOULD BE MOVING ACROSS FL DAY 4 /SAT.
1-28/...WITH ACCOMPANYING/ISOLATED SHOWERS AND THUNDERSTORMS
POSSIBLE BUT LITTLE OBVIOUS SEVERE POTENTIAL. AS THE UPPER TROUGH
AMPLIFIES AND SHIFTS ENEWD ACROSS NEW ENGLAND AND INTO THE CANADIAN
MARITIMES THROUGH DAY 5 /SUN. 1-29/...MORE ZONAL/LOW-AMPLITUDE FLOW
WILL EVOLVE ACROSS THE CONUS. IN CONJUNCTION...SURFACE HIGH
PRESSURE IS PROGGED TO EXPAND SEWD INTO THE ERN CONUS...USHERING IN
A COOLER/DRIER CONTINENTAL AIRMASS. WHILE THE HIGH SHOULD SHIFT EWD
INTO THE ATLANTIC DAY 6 /MON. 1-30/...REMNANT SURFACE RIDGING IS
PROGGED TO EXTEND WWD ACROSS THE SOUTHEAST U.S. AND GULF OF MEXICO
THROUGH THE END OF THE PERIOD. THIS SHOULD EFFECTIVELY LIMIT ANY
APPRECIABLE GULF MOISTURE RETURN...AND SUBSEQUENTLY HINDER
CONVECTIVE POTENTIAL THROUGH THE PERIOD.

..GOSS.. 01/25/2012

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