SWODY1
SPC AC 291947
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0147 PM CST TUE DEC 29 2009
VALID 292000Z - 301200Z
...NO SVR TSTM AREAS FORECAST...
--- UPDATES ---
NO CHANGES NECESSARY TO CATEGORICAL OUTLOOK. ALTHOUGH THUNDER NEAR
UPPER TX COAST SHOULD BEGIN AROUND 12Z...PRIND BULK OF THREAT WILL
BE DAY-2 PERIOD...WITH POTENTIAL BEFORE 12Z TOO MRGL/CONDITIONAL FOR
CATEGORICAL AREA. REF DAY-2 OUTLOOK FOR MORE DETAILS.
..EDWARDS.. 12/29/2009
.PREV DISCUSSION... /ISSUED 0958 AM CST TUE DEC 29 2009/
...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.
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