Small Craft Advisory for Winds 56, NWS Eureka, CA

AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE EUREKA CA
940 AM PDT SUN SEP 7 2008

.UPDATE...VIS IMAGERY SHOWS STRATUS OFFSHORE AND ALONG THE REDWOOD
COAST THIS MORNING. ISSUED QUICK UPDATE TO UPDATE SKY COVER FOR THE
REDWOOD COAST TODAY.
&&

.SYNOPSIS...WEAKENING HIGH PRESSURE WILL BRING MORE SEASONABLE
TEMPERATURES FOR INTERIOR LOCATIONS ACROSS NORTHWEST CALIFORNIA INTO
NEXT WEEK. THE IMMEDIATE COASTAL AREAS WILL SEE THE RETURN OF LOW
CLOUDS AND FOG IN THE LATE NIGHTS AND EARLY MORNINGS.
&&

.PREVIOUS DISCUSSION...ISSUED AT 500 AM PDT SUN SEP 7 2008...SHORT
TERM...HEIGHTS BEGIN TO LOWER AS AN UPPER LEVEL RIDGE THAT HAS BEEN
DOMINATING THE WEATHER ACROSS NORTHWEST CALIFORNIA OVER THE PAST
WEEK SLOWLY BEGINS TO FLATTEN. THIS WILL LEAD TO SLIGHTLY COOLER
TEMPERATURES ACROSS THE INTERIOR ZONES THIS WEEK. MEANWHILE THE WEAK
OFFSHORE FLOW THAT HAS BROUGHT VERY PLEASANT WEATHER TO THE COASTAL
ZONES OVER THE PAST SEVERAL DAYS CONTINUES TO WEAKEN. COASTAL
STRATUS SHOULD BECOME MORE ENTRENCHED LATER THIS EVENING AND
OVERNIGHT. 11-3.9 IMAGERY CLEARLY SHOWS A FIELD OF STRATUS OFF THE
COAST THAT IS DESPERATELY TRYING TO MOVE INLAND. FORTUNATELY...THERE
APPEARS TO BE JUST ENOUGH OFFSHORE FLOW STILL PRESENT TO KEEP THE
STRATUS WEST OF THE COASTLINE FOR AT LEAST ONE MORE DAY.

.PREV LONG TERM...WED THROUGH SAT...MODELS CONTINUE TO SHOW A LONG
WAVE RIDGE DOMINATING OVER THE EASTERN PACIFIC THROUGH NEXT WEEK.
ALL THE MEDIUM RANGE MODELS SHOW GOOD AGREEMENT THROUGH THE WEEK AS
A BAGGY UPPER TROUGH/CLOSED LOW DEVELOPS ALONG AND OVER SOUTHERN
CALIFORNIA. THIS WILL LIKELY KEEP NORTHWEST CALIFORNIA UNDER A RIDGE
AND STABLE WEATHER PATTERN. INLAND AREAS SHOULD CONTINUE TO
EXPERIENCE SEASONABLY WARM TEMPERATURES UNDER CLEAR SKIES AND WEAK
OFFSHORE FLOW...WHILE COASTAL AREAS WILL MOST LIKELY CONTINUE TO SEE
ABUNDANT SUNSHINE WITH TYPICAL NIGHT/MORNING LOW CLOUDS/FOG. DJB

&&

.AVIATION...VFR TO MVFR CONDITIONS ARE BEING REPORTED AT THE TAF
SITES AS OF 10Z THIS MORNING.  SATELLITE IMAGERY SHOWS AN EXTENSIVE
STRATUS BANK LINGERING ABOUT 20 MILES OFF THE COAST IS MOVING VERY
LITTLE AND IS FILLING IN ALONG THE HUMBOLDT COUNTY COAST.  LOCAL
AREAS OF REDUCED CEILINGS AND VISIBILITIES WILL BE POSSIBLE NEAR THE
COAST THIS MORNING WITH VFR CONDITIONS PREVAILING THEREAFTER.  AS
UPPER-LEVEL LOW PRESSURE STRENGTHENS OVER THE WEST COAST...EXPECT A
BETTER CHANCE FOR STRATUS TO MAKE IT TO COASTAL TERMINALS TONIGHT. KL

&&

.MARINE...HIGH PRESSURE OVER THE NORTHEAST PACIFIC AND LOW PRESSURE
OVER CALIFORNIA WILL MAINTAIN MODERATE TO STRONG NORTH WINDS AND
STEEP SEAS OVER THE OUTER WATERS FOR THE NEXT FEW DAYS. STEEP SHORT
PERIOD SWELL WILL ALSO PROPAGATE INTO THE INNER WATERS THROUGH
WEDNESDAY.  EXPECT A BRIEF WEAKENING OF THE WINDS TONIGHT THROUGH
MONDAY NIGHT AS UPPER-LEVEL LOW PRESSURE STRENGTHENS OVER THE WEST
COAST.  AS THE LOW MOVES EAST OF THE REGION TUESDAY...NORTH WINDS
WILL RAMP UP AGAIN WITH GALE-FORCE GUSTS AND HAZARDOUS SEAS EXPECTED
OVER THE OUTER WATERS AGAIN TUESDAY AND WEDNESDAY. KL

&&

.EKA WATCHES/WARNINGS/ADVISORIES...

GALE AND HAZARDOUS SEAS WARNINGS FROM PT ST GEORGE TO CAPE MENDOCINO
FROM 10 TO 60 NM OUT.

SMALL CRAFT ADVISORY FOR WINDS AND HAZARDOUS SEAS FROM CAPE
MENDOCINO TO PT ARENA FROM 10 TO 60 NM OUT.

SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS FROM PT ST GEORGE TO CAPE
MENDOCINO OUT 10 NM.
&&

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