FXUS66 KMFR 231008
AFDMFR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEDFORD OR
208 AM PST WED DEC 23 2009

.DISCUSSION...
WITH THE UPPER RIDGE BUILDING AND WEAK OFF SHORE FLOW SKIES ARE
MOSTLY CLEAR APART FROM SOME SPARSE VALLEY FOG. TONIGHT WILL BE
SIMILAR BUT FOGS WILL BE MORE EXTENSIVE DUE TO INCREASED WARMING
ALOFT INDUCING STRONGER VALLEY INVERSIONS. THIS PATTERN WILL
CONTINUE UNTIL THE WEEKEND WHEN A VERY WEAK FRONT REACHES THE
COAST. AFTER THAT THE PATTERN LOOKS ACTIVE BUT THE MODEL SOLUTIONS
ARE RATHER SUSPECT THAT FAR OUT SO WILL CONTINUE WITH CHANCE POPS
IN THE EXTENDED. 

&&

.AVIATION...GENERALLY VFR CONDITIONS EXCEPT FOR LOCAL AREAS OF IFR 
IN SOME INLAND WEST SIDE VALLEYS. THE FOG SHOULD LIFT DURING THE
MORNING BUT REFORM AND BECOME MORE WIDESPREAD LATE TONIGHT.

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...FROST ADVISORY UNTIL 9 AM PST THIS MORNING FOR ORZ021.

CA...NONE.

PACIFIC COASTAL WATERS...SMALL CRAFT ADVISORY FOR WINDS FROM 10 AM 
     THIS MORNING TO 10 PM PST THIS EVENING FOR PZZ376.
     SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS FROM 10 AM THIS MORNING 
     TO 10 PM PST THIS EVENING FOR PZZ376.

$$

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