DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 220850
SWOD48
SPC AC 220849

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0249 AM CST SAT FEB 22 2014

VALID 251200Z - 021200Z

...DISCUSSION...
A PERSISTENT AREA OF CYCLONIC FLOW ALOFT WILL REMAIN OVER ERN CANADA
AND THE NERN UNITED STATES THROUGH THE PERIOD WITH UPPER LOW
CENTERED OVER HUDSON BAY. THIS PATTERN WILL ALSO SHUNT SUBSTANTIVE
MOISTURE AND INSTABILITY WELL OFFSHORE FROM D5 ONWARD WITH LITTLE
CHANCE OF ANY SEVERE STORMS.

FOR TUE/D4...A FEW WEAK STORMS WILL BE POSSIBLE FROM THE LOWER MS
VALLEY EWD INTO FL AS THE INFLUENCES OF AN AMPLIFYING UPPER TROUGH
TO THE N ARE FELT WITH A PASSING COLD FRONT.

MODELS DO SHOW THE POTENTIAL FOR LOWER-LATITUDE SHORTWAVE TROUGHS
AFFECTING THE SRN TIER OF STATES IN THE D6-D8 PERIOD. THESE WAVES
MAY RESULT IN SHOWERS AND WEAK THUNDERSTORMS AFFECTING PRIMARILY
GULF COASTAL AREAS...BUT POTENTIAL IS LOW FOR SEVERE STORMS...AS IS
PREDICTABILITY.

..JEWELL.. 02/22/2014

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