Small Craft Advisory 49, NWS Eureka, CA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
247 PM PDT WED JUN 11 2014

.SYNOPSIS...TEMPERATURES WILL CONTINUE TO COOL OFF SUBSTANTIALLY
OVER THE NEXT COUPLE OF DAYS AS AN UPPER LEVEL TROUGH SHIFTS OVER
THE PACIFIC NORTHWEST. WINDS WILL BECOME MUCH LIGHTER AT THE COAST
THURSDAY WITH MORE LOW CLOUDS AND FOG.

&&

.DISCUSSION...
TIGHTLY WOUND UPPER TROUGH APPROACHING THE PACIFIC NORTHWEST WILL BE
THE MAIN PLAYER IN OUR WEATHER PATTERN OVER THE NEXT SEVERAL DAYS.
WE HAVE ALREADY SEEN SIGNS OF CHANGE, WITH 10 DEGREES OF COOLING
COMPARED TO YESTERDAY ACROSS MOST OF THE AREA...THE EXCEPTION BEING
THE PORTIONS OF THE IMMEDIATE COAST AND TRINITY COUNTY. STRATUS IS
GRADUALLY EXPANDING ITS COVERAGE ALONG THE COAST, WITH ONLY A FEW
AREAS OF SUNSHINE LEFT ALONG THE NW CALIFORNIA COAST. THESE WILL
FILL IN OVER THE NEXT FEW HOURS, WITH NORTHERLY BREEZES RELAXING
MUCH FASTER THAN THE LAST FEW NIGHTS. STRATUS AND FOG WILL LAST AT
LEAST THROUGH THE MORNING HOURS ALONG JUST ABOUT THE ENTIRE COAST,
BUT AT LEAST PARTIAL CLEARING IS EXPECTED FOR MOST AREAS. THE TROUGH
PASSING OVERHEAD SHOULD HELP WEAKEN THE INVERSION AND PROMOTE
DIURNAL MIXING, EVEN WITH A WEAKER SFC GRADIENT. HIGH TEMPERATURES
INLAND WILL COOL ANOTHER 10 DEGREES OR MORE, ESPECIALLY COMPARED TO
YESTERDAY.

HEADING INTO THE WEEKEND, PACIFIC SFC HIGH PRESSURE WILL BEGIN TO
PUSH BACK IN TOWARD THE COAST, WHICH WILL RESULT IN INCREASING
NORTHERLY WINDS AND GRADUAL WARMING INLAND. THIS WILL ALLOW FOR MORE
SUNSHINE AND LESS OVERNIGHT/MORNING LOW CLOUDINESS. SHORTWAVES WILL
CONTINUE TO KEEP PASSING BY, MAINLY TO OUR NORTH, WHICH WILL KEEP
UPPER RIDGING FROM REALLY BUILDING INLAND AND WARMING TEMPERATURES
TOO QUICKLY...AT LEAST UNTIL NEXT WEEK. CONSENSUS IN THE LONG-RANGE
GUIDANCE POINTS TOWARD A VERY WARM AND DRY WEEK COMING, WITH
POTENTIALLY LIGHT OFFSHORE FLOW BY MIDWEEK. FIRE WEATHER CONCERNS
MAY INCREASE SUBSTANTIALLY DEPENDING ON THE PERSISTENCE OF THAT
PATTERN. AAD

&&

.AVIATION...VFR CONDITIONS AND MODERATE TO MODERATE AND GUSTY WINDS
WILL CONTINUE AT KCEC AND KACV THROUGH THIS AFTERNOON. WINDS WILL
BECOME LIGHT TO CALM OVERNIGHT AT KCEC AND KACV. STRATUS WILL MOVE
ACROSS COASTAL AREAS THIS EVENING AND OVERNIGHT REDUCING CEILINGS
AND COMBINED WITH PATCHY FOG REDUCING VISIBILITIES ACROSS COASTAL
AREAS MVFR TO IFR CONDITIONS WILL OCCUR LATE THIS EVENING AND
OVERNIGHT AT KCEC AND KACV. VFR CONDITIONS AND LIGHT TO MODERATE
WINDS WILL CONTINUE AT KUKI THE NEXT FEW DAYS WITH THE WINDS
BECOMING CALM OVERNIGHT TONIGHT.

&&

.MARINE...A WEAKENING HIGH PRESSURE RIDGE COUPLED WITH AN EASTWARD
PROPAGATING LOW PRESSURE TROUGH NORTH OF THE AREA HAS WEAKENED THE
PRESSURE GRADIENT ACROSS THE WATERS. SUBSEQUENTLY THE WINDS AND SEAS
ARE DIMINISHING. LIGHT TO MODERATE NORTHERLY WINDS AND MODERATE SEAS
WILL PREVAIL ACROSS THE WATERS THURSDAY. HOWEVER THE WINDS AND SEAS
WILL INCREASE FRIDAY AS THE HIGH PRESSURE RIDGE STRENGTHENS ACROSS
THE AREA AND AN INLAND LOW PRESSURE AREA TIGHTENS THE PRESSURE
GRADIENT ACROSS THE WATERS. SMALL CRAFT ADVISORIES ARE LIKELY ACROSS
THE SOUTHERN WATERS FRIDAY AND THE NORTHERN WATERS FRIDAY NIGHT.
WIND GUSTS NEAR GALE FORCE ARE LIKELY ACROSS THE OUTER WATERS
SATURDAY INTO SUNDAY. ELEVATED WINDS AND SEAS WILL PREVAIL ACROSS
THE WATERS THIS WEENED AND MONDAY.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
SMALL CRAFT ADVISORY UNTIL 9 PM PDT THIS EVENING PZZ450-470.

     SMALL CRAFT ADVISORY UNTIL 3 AM PDT THURSDAY PZZ455-475.

&&

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HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EUREKA CA
437 AM PDT WED JUN 11 2014

CAZ001>004-076-121145-
REDWOOD COAST-MENDOCINO COAST-NORTH COAST INTERIOR-
UPPER TRINITY RIVER-MENDOCINO INTERIOR-
437 AM PDT WED JUN 11 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.