SPC AC 291558
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0958 AM CST TUE DEC 29 2009
VALID 291630Z - 301200Z
...NO SVR TSTM AREAS FORECAST...
...PAC NW...
MDTLY STRONG MID LEVEL VORT AND ASSOCIATED COLD AIR ALOFT WILL BE
MOVING ONSHORE OR AND SW WA COASTS BY THIS EVENING. GIVEN STEEP
LAPSE RATES AND MOIST ONSHORE FLOW...SCATTERED CONVECTION INCLUDING
A FEW THUNDERSTORMS ARE LIKELY WEST OF ORE CASCADES THRU THE EVENING
HOURS AND GIVEN THE COLD AIR ALOFT...SMALL HAIL IS LIKELY WITH
STRONGER UPDRAFTS.
..HALES.. 12/29/2009
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z
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