SPC AC 160527
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1127 PM CST THU JAN 15 2009
VALID 171200Z - 181200Z
...NO TSTM AREAS FORECAST...
...SYNOPSIS...
LONGWAVE PATTERN WILL MAINTAIN PRONOUNCED RIDGING OVER W COAST AND
TROUGHING ACROSS ERN CONUS. EMBEDDED SHORTWAVE TROUGH -- NOW
EVIDENT IN MOISTURE CHANNEL IMAGERY OVER NRN BC AND WRN NW
TERRITORIES -- WILL MOVE RAPIDLY SEWD ACROSS UPPER MS VALLEY TO OH
VALLEY AND OZARKS REGION BY END OF PERIOD. WHILE STG SFC
FRONTOGENESIS-CYCLOGENESIS WILL OCCUR WITH THIS SYSTEM...BOUNDARY
LAYER MOISTURE WILL BE INSUFFICIENT TO SUPPORT DEEP MOIST
CONVECTION...GIVEN STG LOW LEVEL RIDGING INVOF GULF COAST AND
RELATED DRY TRAJECTORIES. AIR MASS MODIFICATION OVER NWRN GULF MAY
RESULT IN SUFFICIENT THETAE TO SUPPORT SHOWERS...AND PERHAPS
ISOLATED/PREFRONTAL TSTMS OVER WATER BY 18/12Z. PRIND DEEPEST
CONVECTION WILL REMAIN OFFSHORE.
..EDWARDS.. 01/16/2009
CLICK TO GET WUUS02 PTSDY2 PRODUCT
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 1730Z
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