SPC AC 060521
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1121 PM CST THU NOV 05 2009
VALID 061200Z - 071200Z
...NO SVR TSTM AREAS FORECAST...
...PACIFIC NW...
LAPSE RATES WILL STEEPEN SIGNIFICANTLY AND DEEPEN ALONG THE PACIFIC
NW COAST OVER THE NEXT 12 HR AS SHORTWAVE TROUGH DIGS INTO WA/ORE.
LATEST RADAR DATA SUGGESTS PRE-FRONTAL PRECIPITATION BAND IS
SPREADING ACROSS THE CASCADES...SOON TO BE FOLLOWED BY MUCH COOLER
BUOYANT PROFILES AS MARINE LAYER SURGES INLAND DUE TO INCREASING
ONSHORE FLOW. LATEST SATELLITE IMAGERY SUPPORTS THIS WITH NUMEROUS
LOW-TOPPED CBS...SOME ARE PRODUCING LIGHTNING...APPROACHING THE WA
COAST. GREATEST THREAT FOR THUNDERSTORMS WILL BE DURING THE FIRST
HALF OF THE PERIOD AND PRIMARILY ALONG THE COAST.
..DARROW.. 11/06/2009
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1300Z
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