DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 290946
SWOD48
SPC AC 290945

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0345 AM CST THU NOV 29 2012

VALID 021200Z - 071200Z

...DISCUSSION...
...LOWER/MID MS VALLEY AND GULF COAST REGION...
FAST ZONAL FLOW WILL BE PRESENT OVER THE CONUS THROUGH THE MIDDLE OF
NEXT WEEK...WITH SEVERAL SHORTWAVE TROUGHS TRAVERSING WEST TO EAST
ACROSS THE NATION. ONE SUCH TROUGH IS CURRENTLY WELL OFF THE
PACIFIC NORTHWEST COAST...AND WILL TRACK EASTWARD INTO THE WESTERN
STATES BY MON/DAY 5. PERSISTENT SOUTHERLY LOW LEVEL WINDS OVER THE
LOWER MS VALLEY WILL HELP TO DRAW GULF MOISTURE NORTHWARD AHEAD OF
THIS TROUGH...BUT CURRENT MODEL GUIDANCE SUGGESTS THAT THE RETURN
FLOW AIR MASS WILL NOT BE PARTICULARLY MOIST. SCATTERED
THUNDERSTORMS ARE LIKELY TO OCCUR OVER THE LOWER/MID MS AND LOWER OH
VALLEYS ON MON/DAY 5...AND INTO THE GULF COAST REGION ON TUE/DAY 6.
GIVEN DEWPOINTS ONLY IN THE 50S TO LOWER 60S AND CURRENT FORECASTS
THAT THE STRONGEST WIND FIELDS WILL REMAIN NORTH OF THE BEST
INSTABILITY...WILL NOT OUTLOOK A 30 PERCENT SEVERE THREAT AREA AT
THIS TIME.

..HART.. 11/29/2012

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.