High Wind in California, December 15 to 16, 2002

NORTHWEST CALIFORNIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
800 AM PST SUN DEC 15 2002

A FEW SHOWERS WITH AND ISOLATED THUNDERSTORMS CONTINUING TO MOVE
ACROSS THE COASTAL WATERS IN A SSW-NNE FASION. AFTER A VERY ACTIVE
WEATHER DAY YESTERDAY THINGS HAVE CALMED OVERNIGHT.  2-3 INCHES
OF SNOW FELL SPOTTILY AROUND 4000 FOOT LEVEL AROUND TRINITY COUNTY
LAST NIGHT AS COOL AIR FILTERED IN. THE COLD POOL WILL BE SHORT LIVED
AS WARM AIR ADVECTION PROCCESS BEGIN AGAIN LATER THIS MORNING.

THE NEXT FRONTAL SYSTEM...AGAIN LOOKING VERY STRONG...WRAPPING UP AS
IT CROSSES 140W...WITH STRONG WARM ADVECTION OUT AHEAD OF IT.
AVN/GFS IS FASTER AND MORE WIDESPREAD WITH PRECIP COMING IN LATER
TODAY AND TONIGHT. AVN/GFS SEEMS TO HAVE BEEN HANDLING THE GENERAL
SITUATION WELL OVERALL...AND WILL CONTINUE TO FOLLOW AS PRIMARY
MODEL. MAIN CONCERNS TODAY AND TONIGHT WILL AGAIN BE RAIN AND
WIND. WILL CONTINUE THE HIGH WIND WARNING ZONES 1-3 AND WIND
ADVISORY FOR ZONE 76...BUT TIMING LOOKS TO BE LATER BASED ON AVN AND
ETA MODEL SURFACE AND BOUNDARY LAYER WINDS...WILL GO WITH
AFTERNOON/TONIGHT FOR ZONE 1...LATE AFTERNOON/TONIGHT FOR 2 AND
3...AND TONIGHT FOR WIND ADVISORY IN ZONE 76.

CURRENTLY NEARLY ALL OF THE MAIN STEM RIVERS HAVE RECEEDED BELOW
MONITOR STAGE EXCEPT FOR THE EEL AT FERNBRIDGE WHICH IS RUNNING
ABOUT A FOOT BELOW FLOOD STAGE. RIVERS WILL CONTINUE TO DROP
THROUGHOUT THE DAY BEFORE THE NEXT SLUG OF RAIN BEGINS LATE IN THE
DAY.

.EKA...GALE WARNING PT ST GEORGE TO PT ARENA OUT 60NM.
    ...HIGH SURF ADVISORY PZZ450-455 AND CAZ001-002.
    ...HIGH WIND WARNING CAZ001>003.
    ...WIND ADVISORY CAZ076 TONIGHT.

CAZ001>004-076-161300-
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EUREKA CA
500 AM PST SUN DEC 15 2002

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST CALIFORNIA

.DAY ONE...TODAY

A HIGH WIND WARNING IS IN EFFECT FOR THE REDWOOD AND MENDOCINO
COASTS...AND THE NORTH COAST INTERIOR THIS AFTERNOON AND TONIGHT...AND A
WIND ADVISORY IS IN EFFECT FOR THE MENDOCINO INTERIOR TONIGHT...SEE
SFONPWEKA FOR DETAILS.

A HIGH SURF ADVISORY IS IN EFFECT FOR THE REDWOOD COAST AND
MENDOCINO COAST AND ADJACENT COASTAL WATERS...SEE SFOMWSEKA FOR
DETAILS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

ANOTHER STRONG PACIFIC FRONTAL SYSTEM WILL APPROACH THE COAST
TODAY...BRINGING ADDITIONAL HEAVY RAIN...STRONG WINDS...AND RISING
RIVER AND STREAM LEVELS TONIGHT AND MONDAY. SNOW LEVELS WILL
THEN LOWER...AS A COOLER AND MORE UNSTABLE AIRMASS SETTLES INTO
NORTHWEST CALIFORNIA THROUGH MIDWEEK. ANOTHER POTENTIALLY STRONG
STORM SYSTEM WILL DEVELOP OVER THE REGION THURSDAY AND FRIDAY.

.INSTRUCTIONS TO SPOTTERS...
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

JBL