Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS03 KWNS 270712
SWODY3
SPC AC 270712

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0112 AM CST TUE JAN 27 2015

VALID 291200Z - 301200Z

...NO TSTM AREAS FORECAST...

...SUMMARY...
THUNDERSTORMS ARE NOT EXPECTED ON THURSDAY OR THURSDAY NIGHT.

...DISCUSSION...
A TRIO OF SHORTWAVE IMPULSES ACROSS THE N-CNTRL CONUS/S-CNTRL CANADA
WILL SHIFT E/SE AND EFFECTIVELY YIELD AN AMPLIFYING LARGE-SCALE
TROUGH FROM HUDSON BAY TOWARDS THE MID-ATLANTIC STATES BY EARLY FRI.
A SURFACE CYCLONE WILL TRACK ACROSS THE GREAT LAKES WITH A TRAILING
COLD FRONT PUSHING ACROSS THE SOUTHEAST INTO THE NRN GULF. WITH
LIMITED MOISTURE IN THE WARM SECTOR CHARACTERIZED BY THE NRN EXTENT
OF MIDDLE 40S SURFACE DEW POINTS LIKELY ONLY REACHING GA...MUCAPE
SHOULD REMAIN NEGLIGIBLE.

IN THE SOUTHWEST...A WEAK MID-LEVEL TROUGH SHOULD DEVELOP INTO THE
SRN/BAJA CA AREA WITH PRECIPITATION COVERAGE INCREASING
SUBSTANTIALLY THU NIGHT AHEAD OF THIS FEATURE. POOR MID-LEVEL LAPSE
RATES SHOULD PRECLUDE DEEP CONVECTION AND A RISK FOR TSTMS.

..GRAMS.. 01/27/2015




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