Tuesday, January 20, 2009

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 201241
SWODY1
SPC AC 201237

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0637 AM CST TUE JAN 20 2009

VALID 201300Z - 211200Z

...NO TSTM AREAS FORECAST...

...SYNOPSIS/FORECAST...
OMEGA-BLOCKING PATTERN WILL PERSIST THROUGH THE PERIOD WITH SLIGHT
EWD SHIFT TO TROUGH ALONG THE EAST COAST AND RIDGE OVER THE ROCKIES.
THIS WILL REINFORCE DRY/STABLE AIR ACROSS MUCH OF THE COUNTRY...
ALTHOUGH SHALLOW MOIST CONVECTION WILL ACCOMPANY EJECTING SHORTWAVE
TROUGH AND INCREASE SNOW SHOWERS OVER THE CAROLINAS/SERN VA THROUGH
THE AFTERNOON. SCATTERED TSTMS WILL REMAIN POSSIBLE IN THE ATLANTIC
OFF THE COASTS OF THE CAROLINAS/GA...HOWEVER POTENTIAL FOR
THUNDERSTORMS OVER THE CONUS REMAINS NEGLIGIBLE.

..EVANS.. 01/20/2009

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