Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS01 KWNS 281620
SWODY1
SPC AC 281618

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1018 AM CST WED JAN 28 2015

VALID 281630Z - 291200Z

...NO TSTM AREAS FORECAST...

...SUMMARY...
THUNDERSTORMS ARE UNLIKELY TODAY AND TONIGHT.

...SYNOPTIC SETUP/FORECAST...
MULTI-STREAM...LARGELY CYCLONIC FLOW WILL PREVAIL OVER THE CONUS
THROUGH EARLY THU...IN WAKE OF DEPARTING E CST TROUGH. SHORTWAVE
IMPULSE THAT CROSSED THE GRT BASIN YESTERDAY WILL TRACK ESE INTO THE
MID MS VLY BY THE END OF THE PERIOD AS NRN STREAM IMPULSE NOW OVER
AB/SK CONTINUES ESE TO MN/WI. IN RESPONSE...EXPECT EXISTING LEE LOW
TO CONSOLIDATE ESEWD...WITH THE MAIN CIRCULATION CENTER NEARING CHI
BY 12Z THU.

A PLUME OF STEEP MID-LVL LAPSE RATES WILL SWEEP E/NE INTO THE LWR OH
VLY EARLY THU AHEAD OF LEAD UPR SYSTEM...AND ATOP STRENGTHENING WAA
ZONE E OF ASSOCIATED SFC LOW. WHILE INCREASING HIGH AND MID-LVL
CONVECTION LIKELY WILL ARISE IN THIS ENVIRONMENT...ESPECIALLY IN
CORRIDOR OF GREATEST DVCA OVER IL...SPARSE MOISTURE SUGGESTS THAT
BUOYANCY/CHARGE SEPARATION WILL REMAIN TOO FEEBLE FOR THUNDER.

..CORFIDI/GLEASON.. 01/28/2015



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