Saturday, January 26, 2008

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 260538
SWODY1
SPC AC 260535

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1135 PM CST FRI JAN 25 2008

VALID 261200Z - 271200Z

..NO SVR TSTM AREAS FORECAST...

..CALIFORNIA...

PRIMARY MID LEVEL CIRCULATION...CENTERED NEAR 33N/132W...SHOULD
FINALLY BE KICKED EAST TOWARD THE CA COAST LATE IN THE PERIOD AS
HEIGHTS FALL UPSTREAM IN RESPONSE TO DIGGING SPEED MAX OFF THE BC
COAST. INSTABILITY SUFFICIENT FOR DEEP CONVECTION SHOULD REMAIN
CONFINED MAINLY TO THAT REGION BENEATH COLDEST MID LEVEL
TEMPERATURES...INVOF OF MAIN CIRCULATION. TOWARD THE END OF THE
PERIOD SFC FRONT WILL MOVE INLAND AND ONSHORE FLOW WILL AID
DESTABILIZATION AS MARINE LAYER SPREADS INLAND. THUNDERSTORM
PROBABILITIES SHOULD INCREASE MARKEDLY JUST BEYOND THE DAY1
PERIOD...ALTHOUGH ISOLATED THUNDERSTORMS COULD DEVELOP BEFORE 12Z
ALONG/IMMEDIATELY IN THE WAKE OF ADVANCING COLD FRONT.

.DARROW.. 01/26/2008

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