SPC Day 1 Thunderstorm Outlook Issued 13Z 20030119


ZCZC SPCSWODY1 ALL
ACUS01 KWNS 191245
SPC AC 191244

STORM PREDICTION CENTER...NWS/NCEP...NORMAN OK 
DAY 1 CONVECTIVE OUTLOOK...REF AWIPS GRAPHIC PGWE46 KWNS.

VALID 191300Z - 201200Z

NO TSTM AREAS FCST.

...SYNOPSIS...
NRN STREAM SHORT WAVE TROUGH AND ASSOCIATED ARCTIC FRONT CURRENTLY
MOVING RAPIDLY SEWD OUT OF SOUTH-CNTRL CANADA WILL REINFORCE THE
VERY COLD AIRMASS ANCHORED ACROSS THE UPPER MS VALLEY...GREAT
LAKES...AND NEW ENGLAND TODAY THROUGH TONIGHT. MEANWHILE...UPPER
LOW OFF THE COAST OF SRN CA/NRN BAJA WILL DRIFT SLOWLY EWD AS BROAD
RIDGING ALOFT PERSISTS OVER THE PACIFIC NORTHWEST. LARGE SCALE
ASCENT AHEAD OF THE BAJA UPPER LOW IS EXPECTED TO SPREAD INLAND
OVER THE LOWER CO RIVER VALLEY/SRN AZ BY EARLY MONDAY. HOWEVER...
MOISTURE AND INSTABILITY WITH THIS FEATURE ARE EXPECTED TO REMAIN
TOO LIMITED FOR TSTM FORMATION.

..CARBIN.. 01/19/03

NNNN