SWODY1
SPC AC 190057
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0657 PM CST SAT DEC 18 2010
VALID 190100Z - 191200Z
...NO SVR TSTM AREAS FORECAST...
...PACIFIC NW...
UPPER LOW NEAR 49N/131W IS EXPECTED TO DRIFT WNW TONIGHT AS A STRONG
MID/UPPER LEVEL JET CORE REMAINS IN PLACE ACROSS NRN CA/SRN ORE.
WATER VAPOR IMAGERY SHOWS NEXT MID-LEVEL WAVE ABOUT 200 MILES W OF
ORE AND OCEANIC LIGHTNING PRODUCTS SUGGEST LIGHTNING IS ASSOCIATED
WITH EXTENSIVE OPEN-CELL CUMULUS FIELD.
MID-LEVEL COLD POOL /H5 TEMPERATURES AT OR BELOW MINUS 30 DEG C/ AND
MOIST ONSHORE FLOW HAS ALREADY BEEN FAVORABLE FOR SPORADIC
THUNDERSTORMS ALONG THE COAST OF ORE...WA AND NRN CA THROUGH THE
DAY. SET-UP WILL REMAIN IN PLACE TONIGHT WITH THUNDER PROBABILITIES
INCREASING LATER TONIGHT AS THE AFOREMENTIONED SHORTWAVE TROUGH
APPROACHES THE COAST.
..RACY.. 12/19/2010
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