000 
FXUS66 KMFR 041601
AFDMFR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEDFORD OR
801 AM PST SUN NOV 4 2007

.DISCUSSION...12Z NGM/NAM IN.  12Z GFS IN THROUGH 48HR. 

THE REX BLOCK OFF THE WEST COAST IS NOW IN PLACE WITH THE LOW OFF
THE SOUTHERN CALIFORNIA COAST AND THE HIGH OFF THE EXTREME
NORTHERN CALIFORNIA AND SOUTHERN OREGON COAST. THIS PATTERN WILL
REMAIN IN PLACE THROUGH WEDNESDAY. DRY WEATHER WILL CONTINUE WITH
SEASONABLE DAYS AND COOL NIGHTS. THE OVERNIGHT LOW CLOUDS AND FOG
IN THE WESTERN VALLEYS WILL CONTINUE TO DIMINISH...BUT LOW CLOUDS
ALONG THE COAST WILL INCREASE AS THE THERMAL TROUGH WEAKENS AND
THE OFFSHORE FLOW EVENT ENDS TODAY. EXPECT LIGHT WINDS JUST ABOUT
EVERYWHERE ONCE THE COASTAL WINDS DIMINISH LATER TODAY AND TONIGHT.

THE DRY PATTERN WILL LIGHT WINDS WILL PREVAIL INTO WEDNESDAY
NIGHT...WHEN THE RIDGE WILL BREAK DOWN AND FAST ZONAL FLOW WILL
SAG INTO THE AREA. THIS WILL BRING THE STORM TRACK BACK SOUTH FOR
AN EXTENDED PERIOD OF WET WEATHER. THE FIRST OF SEVERAL SYSTEMS NOW
LOOKS LIKE IT WILL MOVE ONSHORE THURSDAY EVENING. THIS WILL NOT
BE A PARTICULARLY WINDY EVENT BUT IT SHOULD BRING IN SOME LIGHT
PRECIPITATION FROM THE CASCADES WEST. HEAVIER PRECIPITATION WILL
MOVE IN FRIDAY AS A WETTER FRONT MOVES ONSHORE. THE HITS WILL KEEP
ON COMING AS ANOTHER FRONT WILL MOVE ONSHORE SUNDAY.

&&

.AVIATION...VFR CONDITIONS WILL PREVAIL TODAY ALONG THE
COAST...BUT IFR CIGS WILL RETURN TONIGHT AS MARINE STRATUS MOVES
ONSHORE.  VFR CONDITIONS WILL PREVAIL INLAND...EXCEPT FOR PATCHY
MORNING LOW CLOUDS AND FOG WHICH WILL BURN OFF BY LATE MORNING.
PATCHY IFR CIGS/VSBYS WILL RETURN LATE TONIGHT...BUT COVERAGE WILL
DIMINISH.

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.

CA...NONE.

PACIFIC COASTAL WATERS...SMALL CRAFT ADVISORY FOR WINDS UNTIL 10 PM 
          PST THIS EVENING FOR PZZ350-PZZ356.
     SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS UNTIL 10 PM PST THIS 
          EVENING FOR PZZ350-PZZ356.
     SMALL CRAFT ADVISORY FOR WINDS UNTIL 4 AM PST MONDAY FOR PZZ370-
          PZZ376.
     SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS UNTIL 4 AM PST MONDAY 
          FOR PZZ370-PZZ376.

$$

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