153
FXUS66 KEKA 101942
AFDEKA
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
1142 AM PST SAT JAN 10 2026
SYNOPSIS
COOL CONDITIONS WILL STEADILY WARM THROUGH LATE NEXT
WEEK. THE INLAND VALLEYS WILL SEE NIGHT AND MORNING LOW CLOUDS AND
FOG ALONG MORE LIMITED WARMING.
DISCUSSION
HIGH PRESSURE IS STARTING TO BUILD INTO NORTHERN
CALIFORNIA, ALTHOUGH IT REMAINS RATHER FLAT WITH A WEATHER SYSTEM
MOVING INTO THE PACIFIC NORTHWEST. THIS IS BRINGING SOME HIGH
CLOUDS TO PORTIONS OF THE AREA TODAY AND THESE ARE GENERALLY
EXPECTED TO PERSIST THROUGH THE WEEKEND. MANY OF THE INTERIOR
VALLEYS SAW LOW CLOUDS THIS MORNING AND THESE ARE EXPECTED TO
PERSIST INTO EARLY NEXT WEEK. IT IS POSSIBLE SOME LOW CLOUDS MAY
FORM ALONG THE COAST AS WELL. THESE LOW CLOUDS AND TEMPERATURE
INVERSIONS IN THE VALLEYS ARE EXPECTED TO KEEP TEMPERATURES COOL
EVEN THOUGH THE LOW CLOUDS MAY CLEAR OUT BY THE LATE MORNING AND
AFTERNOON. NO RAIN IS EXPECTED.
NEXT WEEK HIGH PRESSURE IS EXPECTED TO STRENGTHEN BRINGING WARM
AIR ALOFT. THIS WILL STRENGTHEN THE VALLEY INVERSIONS KEEPING FOG
AND LOW CLOUDS IN MANY OF THEM. THIS MAY ALSO KEEP HIGH
TEMPERATURES IN THE COLDER VALLEYS FROM WARMING TOO MUCH. SO HAVE
LOWERED THE TEMPERATURES BELOW THE NBM GUIDANCE AND THIS WILL NEED
TO BE MONITORED OVER THE NEXT WEEK.
DRY WEATHER WILL LIKELY CONTINUE THROUGH THE NEXT WEEK. THE
ENSEMBLES ARE HINTING AT SOME PRECIP POSSIBLY AROUND JANUARY 20TH,
BUT THERE IS ONLY A 25 CHANCE OF A HUNDREDTH OF AN INCH. SO THIS
WILL NEED TO WATCHED AS IT GETS CLOSER. MKK
AVIATION...(18Z TAFS)
VFR CONDITIONS WITH LIGHT WINDS ARE
FORECAST AT THE TERMINALS FOR THE NEXT 24 HOURS. OFFSHORE FLOW IS
EXPECTED TO KEEP THE TAF SITES CLEAR OVERNIGHT, BUT SOME INTERIOR
VALLEYS COULD STILL SEE STRATUS AND FOG. ANY FOG WILL LIFT AND
SCATTER SHORTLY AFTER SUNRISE. JB
MARINE
GENERALLY LIGHT SOUTHERLY WINDS AND MILD SEAS ARE
FORECAST TODAY. A MID-PERIOD WESTERLY SWELL FILLS IN TODAY AND
PEAKS AROUND 5- 7 FT AT 12 SECONDS, KEEPING THE SEA STATE ELEVATED
DESPITE LIGHT WINDS. WINDS COULD BE BREEZY IN THE FAR NORTHERN
WATERS WITH GUSTS OF 15-20 KTS POSSIBLE. THESE WINDS EASE SUNDAY,
BUT A LARGER LONG PERIOD WESTERLY SWELL FILLS IN SUNDAY AFTERNOON,
PEAKING AT AROUND 12 FT AT 16 SECONDS BY SUNDAY NIGHT.
NORTHERLIES RETURN MONDAY AND GUSTS OF 20-25 KTS ARE POSSIBLE IN
THE LEE OF CAPE MENDOCINO. WINDS ARE LIKELY TO INCREASE FURTHER BY
THE MIDDLE OF NEXT WEEK. 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 16 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 FROM 3 PM SUNDAY TO 11 PM PST MONDAY
FOR PZZ450-455.
SMALL CRAFT ADVISORY FROM 3 PM SUNDAY TO 3 AM PST TUESDAY
FOR PZZ470-475.
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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