ZCZC SPCSWODY1 ALL ACUS01 KWNS 160101 SPC AC 160100 STORM PREDICTION CENTER...NWS/NCEP...NORMAN OK DAY 1 CONVECTIVE OUTLOOK...REF AWIPS GRAPHIC PGWE46 KWNS. VALID 160100Z - 161200Z NO TSTM AREAS FCST. --- SYNOPSIS --- PROGRESSIVE MIDDLE-UPPER LEVEL PATTERN CONTINUES OVER CONUS -- FEATURING WRN STATES LONGWAVE RIDGE AND MEAN TROUGH OVER ERN STATES. INTENSE NW-FLOW SHORTWAVE TROUGH -- NOW APPARENT ON MOISTURE CHANNEL IMAGERY AND AVAILABLE RAOB DATA OVER GREAT PLAINS -- IS EXPECTED TO MOVE SEWD ACROSS REMAINDER CENTRAL/SRN PLAINS TONIGHT. ASSOCIATED SURFACE CYCLONE SHOULD SHIFT EWD ACROSS OK...WITH COLD FRONT SWEEPING SEWD OVER MUCH OF WRN PORTIONS TX/OK. ALTHOUGH LOW LEVEL WAA/ISENTROPIC ASCENT WILL REMAIN QUITE VIGOROUS WITH THIS SYSTEM...AIR MASS WILL REMAIN TOO STABLE IN LOW LEVELS TO SUPPORT AREAS OF TSTMS. ..EDWARDS.. 01/16/03 NNNN |