SPC AC 280622
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1222 AM CST MON DEC 28 2009
VALID 291200Z - 301200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
A LOW AMPLITUDE/PROGRESSIVE LARGE SCALE FLOW REGIME WILL DOMINATE
THE CONUS ON TUESDAY. COLD/STABLE CONDITIONS AND THE DOMINANCE OF
HIGH PRESSURE ACROSS THE EASTERN HALF OF THE CONUS WILL CONTINUE TO
KEEP TSTM POTENTIAL VIRTUALLY NIL IN MOST LOCALES. AS A SHORTWAVE
TROUGH/JET STREAK AND ASSOCIATED FRONTAL BAND APPROACH THE PACIFIC
NORTHWEST...ISOLATED LOW-TOPPED TSTMS /PERHAPS EVEN SOME SMALL HAIL/
WILL BE POSSIBLE PRIMARILY FOR THE COASTAL AREAS OF WA/ORE AND
PERHAPS NORTHERN CA. TIED TO A SOUTHERN STREAM UPPER TROUGH
ADVANCING FROM THE SOUTHERN ROCKIES/NORTHERN MEXICO TO TX...SOME
ISOLATED ELEVATED TSTMS WILL ALSO BE POSSIBLE TUESDAY NIGHT MAINLY
FOR THE TX COASTAL PLAIN AND OFFSHORE GULF WATERS.
..GUYER.. 12/28/2009
CLICK TO GET WUUS02 PTSDY2 PRODUCT
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 1730Z
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