FXUS66 KSGX 151018
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
230 AM PST TUE DEC 15 2009

.SYNOPSIS...AFTER PATCHY DENSE FOG IN THE VALLEYS THIS 
MORNING...BUILDING HIGH PRESSURE AND WEAK OFFSHORE FLOW WILL BRING 
DRY...WARMER WEATHER THIS WEEK. 

&&

.DISCUSSION...FOR SOUTHWEST CALIFORNIA INCLUDING SAN DIEGO... 
ORANGE...SOUTHWEST SAN BERNARDINO AND WEST RIVERSIDE COUNTIES.

DAMP GROUND AND CLEAR CALM CONDITIONS WILL CAUSE SOME PATCHES OF 
DENSE FOG TO DEVELOP IN THE VALLEYS THIS MORNING. OTHER THAN THAT WE 
EXPECT FAIR AND DRY WEATHER AT LEAST THROUGH THE WEEKEND WITH HIGH 
PRESSURE ALOFT AND WEAK OFFSHORE FLOW. A WEAK SHORTWAVE MOVING 
THROUGH NORTHERN CALIFORNIA WILL SPREAD SOME HIGH CLOUDS ACROSS 
SOUTHERN CALIFORNIA TODAY AND WEDNESDAY. THE HIGH PRESSURE RIDGE 
AMPLIFIES AS THE OFFSHORE FLOW STRENGTHENS A LITTLE MORE THURSDAY 
AND FRIDAY. AND THAT WILL MEAN THURSDAY AND FRIDAY WILL BE THE 
WARMEST DAYS WITH HIGHS IN THE UPPER 70S IN THE VALLEYS. THE RIDGE 
IS SHOWN BY MODELS TO BREAK DOWN NEXT WEEK SOME TIME...BUT THE 
CHANCE OF RAIN APPEARS VERY MARGINAL RIGHT NOW. 

&&

.AVIATION...
151000Z...STRATUS IS NOT EXPECTED TO REDEVELOP THROUGH AT LEAST 
WEDNESDAY NIGHT. SCATTERED TO BROKEN CIRRUS AOA FL200 WILL MOVE OVER 
THE REGION THROUGH WEDNESDAY. PATCHY FOG...LOCALLY DENSE...WILL 
DEVELOP IN THE VALLEYS AT NIGHT AND DISSIPATE SHORTLY AFTER 
SUNRISE. 

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION...MACKECHNIE