DAY2SVR: Nws Storm Prediction Center Norman Ok

ACUS02 KWNS 021729
SWODY2
SPC AC 021727

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1127 AM CST SAT MAR 02 2013

VALID 031200Z - 041200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
THE LARGE SCALE PATTERN WILL DE-AMPLIFY TO A DEGREE ON SUNDAY AS A
PROGRESSIVE LONGWAVE REGIME OTHERWISE PERSISTS. A PROMINENT EASTERN
STATES TROUGH WILL CONTINUE TO SHIFT EASTWARD TOWARD THE WESTERN
ATLANTIC...WHILE DUAL SHORTWAVE TROUGHS DEVELOP EAST-SOUTHEASTWARD
ACROSS THE WESTERN CONUS. IN GENERAL...COOL/STABLE CONDITIONS UNDER
THE INFLUENCE OF CONTINENTAL TRAJECTORIES WILL GENERALLY PRECLUDE
TSTMS...ALTHOUGH A FEW TSTMS WILL BE POSSIBLE ACROSS PORTIONS OF CA.

...NORTHERN/CENTRAL CA...
MID-UPPER COLD POCKET /-20C TO -24C/ IN ASSOCIATION WITH AN
EAST-SOUTHEASTWARD SHORTWAVE TROUGH WILL OVERSPREAD NORTHERN CA ON
SUNDAY. GIVEN MODEST HEATING AND THE POTENTIAL FOR UP TO 100-200
J/KG SBCAPE ASIDE FROM OROGRAPHIC INFLUENCES...A FEW TSTMS MAY BE
POSSIBLE MAINLY SUNDAY AFTERNOON ACROSS THE SACRAMENTO
VALLEY/NORTHERN SIERRA NEVADA VICINITY. NO SEVERE TSTMS ARE
EXPECTED.

..GUYER.. 03/02/2013

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