Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS01 KWNS 250051
SWODY1
SPC AC 250049

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0649 PM CST WED DEC 24 2014

VALID 250100Z - 251200Z

...THERE IS A MRGL RISK OF SVR TSTMS FOR PARTS OF THE LOWER GREAT
LAKES TO CNTRL APPALACHIANS...

...SUMMARY...
A LINE OF SHOWERS WITH STRONG WIND GUSTS CAPABLE OF ISOLATED
DAMAGING WINDS SHOULD DIMINISH IN OVERALL INTENSITY THIS EVENING
ACROSS THE LOWER GREAT LAKES TO CENTRAL APPALACHIANS.

...CNTRL APPALACHIANS AND LOWER GREAT LAKES...
A NARROW LOW-TOPPED SQUALL LINE ARCED FROM NERN OH TO SRN WV ALONG A
SHARP SYNOPTIC COLD FRONT. ALTHOUGH CG LIGHTNING HAS BEEN
SPORADIC...35-50 KT WIND GUSTS HAVE ACCOMPANIED QLCS PASSAGE WITH
ISOLATED DAMAGE. THIS MAY PERSIST FOR A COUPLE MORE HOURS GIVEN
PRESENCE OF MIDDLE 50S TO LOWER 60S SURFACE TEMPERATURES IMMEDIATELY
AHEAD OF THE LINE...ALONG WITH A STRONG PRESSURE RISE/FALL COUPLET.
FARTHER N/NE...COOLER/MORE STABLE THERMODYNAMIC PROFILES AS SAMPLED
BY 00Z BUF RAOB SHOULD PRECLUDE APPRECIABLE CONVECTIVE ENHANCEMENT
TO SYNOPTIC-SCALE WIND GUSTS BEYOND ABOUT 03-04Z. THIS SCENARIO IS
CONSISTENTLY SUPPORTED BY RECENT HRRR RUNS.

..GRAMS.. 12/25/2014




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