093
FXUS66 KEKA 092143
AFDEKA
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
143 PM PST FRI JAN 9 2026
SYNOPSIS
COOL CONDITIONS WILL STEADILY WARM THROUGH MID NEXT
WEEK. CONDITIONS WILL REMAIN UNSEASONABLY DRY, CLEAR, AND CALM
THROUGH NEXT WEEK.
DISCUSSION
MODERATE OFFSHORE FLOW AND COLD AIR
ALLOWED FOR VERY COOL TEMPERATURES ACROSS THE AREA THIS PAST MORNING
WITH MANY INTERIOR VALLEYS AND AREAS ALONG THE COAST EXPERIENCING
APPARENT TEMPERATURES BELOW 30. SKIES HAVE REMAINED CLEAR TODAY BUT
GENTLE WINDS TURNING MORE SOUTHERLY WILL HELP INCREASE COASTAL
MOISTURE AND GENERALLY INCREASE OVERNIGHT TEMPERATURES SLIGHTLY.
THAT SAID, MANY LOCATIONS WILL STILL SEE OVERNIGHT CONDITIONS NEAR
FREEZING.
WEAK UPPER LEVEL RIDGING WILL SLOWLY BUILD INTO THE REGION THIS
WEEKEND AND INTO EARLY NEXT WEEK. GRADUAL WARMING WILL OCCUR BY THIS
WEEKEND AND BUILD INTO MID NEXT WEEK. A VERY WEAK UPPER LEVEL WAVE
AROUND SUNDAY COULD PRODUCE MIDLEVEL CLOUDS AND VERY LIGHT COASTAL
DRIZZLE, BUT OTHERWISE SKIES WILL BE MOSTLY CLEAR. SOUTHEAST WINDS
WILL MOST LIKELY INHIBIT ANY STRONG MARINE LAYER FORMATION. ABOVE
AVERAGE TEMPERATURES ARE FORECAST BY TUESDAY WITH SOME DAYTIME
INTERIOR HIGHS IN THE LOW 70S BY EARLY NEXT WEEK. THOUGH NOT HIGH IN
ABSOLUTE TERMS, THIS MAY APPROACH SOME HIGH TEMPERATURE RECORDS SUCH
AS AROUND UKIAH BY MID WEEK. IN CONTRAST TO THE LAST COUPLE OF
WEEKS, THERE IS VERY LITTLE CHANCE OF RAIN WITH LESS THAN 10% OF
ENSEMBLE MEMBERS INDICATING ANY CHANCE FOR WETTING RAIN EVEN ALONG
THE COAST BY NEXT WEEKEND. /JHW
AVIATION...(18Z TAFS)
VFR CONDITIONS AND LIGHT WINDS ARE FORECAST
ACROSS THE AREA TODAY. SOME INTERIOR VALLEYS MAY SEE INTERIOR FOG OR
STRATUS TONIGHT, BUT IMPACTS TO THE TAF SITES ARE UNLIKELY. THERE IS
A SLIGHT (LESS THAN 30% CHANCE) FOR IFR CONDITIONS AT CEC AND UKI
BRIEFLY EARLY SATURDAY MORNING. JB
MARINE
SEAS ARE STARTING TO SUBSIDE AS WINDS EASE AND THE
WESTERLY SWELL SUBSIDES. COMBINED SEAS ARE LIKELY TO BE BELOW 10 FT
BY THIS AFTERNOON AND EVENING. WINDS TURN SOUTHERLY TODAY AND COULD
BE BREEZY AROUND CAPE MENDOCINO AND THE NORTHERN OUTER WATERS, BUT
GUSTS ARE STILL LIKELY TO REMAIN BELOW 20 KTS IN THESE AREAS. A MID-
PERIOD WESTERLY SWELL WILL FILL IN SATURDAY, THOUGH COMBINED SEAS
ARE LIKELY TO REMAIN BELOW 10 FT. ANOTHER, LARGER LONG-PERIOD
WESTERLY SWELL AT AROUND 12 FT AT 17 SECONDS FILLS IN SUNDAY,
RETURNING ELEVATED SEAS. WINDS TURN NORTHERLY EARLY NEXT WEEK AND
ARE LIKELY TO BE BREEZY SOUTH OF CAPE MENDOCINO. JB
BEACH HAZARDS
ON SUNDAY, ANOTHER LONG PERIOD WESTERLY SWELL
ORIGINATING FROM A LOW NEAR THE ALEUTIANS FILLS IN AT AROUND 7 FT AT
20 SECONDS AND PEAKS AROUND 12 FT AT 17 SECONDS. A BEACH HAZARD
STATEMENT HAS BEEN ISSUED FOR THIS MODERATE SNEAKER WAVE THREAT LATE
SUNDAY MORNING THROUGH MONDAY AFTERNOON. STAY MUCH FARTHER BACK FROM
THE OCEAN AND AVOID STEEP BEACHES AND JETTIES. REMEMBER, NEVER TURN
YOUR BACK ON THE OCEAN! JB
EKA WATCHES/WARNINGS/ADVISORIES
CA...
BEACH HAZARDS STATEMENT FROM SUNDAY MORNING THROUGH MONDAY
AFTERNOON FOR CAZ101-103-104-109.
NORTHWEST CALIFORNIA COASTAL WATERS...
SMALL CRAFT ADVISORY UNTIL 3 PM PST THIS AFTERNOON FOR
PZZ450-470.
SMALL CRAFT ADVISORY UNTIL 8 PM PST THIS EVENING FOR PZZ455-
475.
NOTE: THE FULL FORECAST DISCUSSION IS NOW REGULARLY ISSUED BETWEEN
10 AM/PM AND 1 PM/AM. ADDITIONAL UPDATES WILL BE ISSUED AS NEEDED.
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