Tuesday, January 3, 2012

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 040051
SWODY1
SPC AC 040049

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0649 PM CST TUE JAN 03 2012

VALID 040100Z - 041200Z

...NO TSTM AREAS FORECAST...

...SYNOPSIS...
A LARGE UPPER TROUGH WILL CONTINUE VACATING THE ERN U.S. AND
SHIFTING INTO THE ATLANTIC THE REMAINDER OF THE PERIOD...WHILE A
SHORT-WAVE TROUGH IN THE WAKE OF THIS SYSTEM DIGS SEWD ACROSS THE N
CENTRAL AND CENTRAL STATES.

SURFACE HIGH PRESSURE WILL PREVAIL ACROSS MOST OF THE CONUS...THOUGH
A WEAK CLIPPER-TYPE FRONT WILL SHIFT ACROSS THE CENTRAL U.S. IN
CONJUNCTION WITH THE UPPER SHORT-WAVE TROUGH.

AS THE UPPER SYSTEM SHIFTS AWAY FROM THE GREAT LAKES REGION...LACK
EFFECT ACTIVITY WILL CONTINUE TO DIMINISH. THE ONLY LIGHTNING
EXPECTED WITH THIS SYSTEM WILL REMAIN WELL OFFSHORE OVER THE WRN
ATLANTIC/GULF STREAM. ELSEWHERE...ASIDE FROM SHOWERS OVER PARTS OF
WA AND NRN OREGON...DEEP MOIST CONVECTION IS NOT EXPECTED.

..GOSS.. 01/04/2012

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