Saturday, December 18, 2010

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 190059
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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