324
FXUS66 KEKA 070905
AFDEKA
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
105 AM PST WED JAN 7 2026
SYNOPSIS
LIGHT RAIN AND MOUNTAIN SNOW CONTINUE THROUGH
WEDNESDAY NIGHT. HIGH PRESSURE IS EXPECTED TO BUILD IN LATE THIS
WEEK BRINGING DRY CONDITIONS TO NORTHWEST CALIFORNIA. SNEAKER
WAVES ARE EXPECTED ALONG THE COAST BY WEDNESDAY TRANSITIONING
INTO LARGE SURF BY THURSDAY.
DISCUSSION
ANOTHER COUPLE OF FRONTS WILL BRING LIGHT TO
MODERATE PRECIPITATION PRIMARILY TO THE NORTHERN PORTION OF THE
FORECAST AREA WEDNESDAY. TOTAL PRECIPITATION FROM THE WAVES OF
PRECIPITATION WILL LIKELY RANGE FROM A COUPLE TENTHS OF AN INCH TO
AROUND THREE QUARTERS OF AN INCH FOR COASTAL AND VALLEY LOCATIONS
OF HUMBOLDT, DEL NORTE, AND WESTERN TRINITY COUNTIES WITH
POTENTIALLY OVER AN INCH IN THE HIGHER TERRAIN. SNOW LEVELS WILL
FALL BEHIND EACH FRONT, POTENTIALLY TO AS LOW AS 2500 FEET IN DEL
NORTE COUNTY BEFORE THE SNOW COMES TO AN END. TOTAL SNOWFALL IN
THE HIGHER TERRAIN WILL EASILY REACH ADVISORY CRITERIA, BUT WITH
VERY LITTLE EXPECTED DOWN TO ANY HIGHWAY PASSES, A WINTER WEATHER
ADVISORY HAS NOT BEEN ISSUED AT THIS TIME. THE MAIN CONCERN IS
HIGHWAY 199 WHERE LIGHT SNOW MAY REACH THE HIGHWAY WEDNESDAY NIGHT
FOR A FEW HOURS WITH UP TO AN INCH OF SNOW POSSIBLE.
IN ADDITION TO THE RAIN AND MOUNTAIN SNOW, NORTHWESTERLY WINDS WILL
ALSO RAMP UP BEHIND THE FRONT. WIND GUSTS IN EXCESS OF 20 MPH WILL
BE POSSIBLE ALONG THE COAST WEDNESDAY AFTERNOON AND EVENING ALONG
WITH MANY OF THE RIDGETOPS ACROSS THE ENTIRE REGION. LOCALLY HIGHER
GUSTS WILL BE POSSIBLE ON THE INTERIOR MOUNTAINS, PARTICULARLY IN
LAKE AND EASTERN TRINITY COUNTIES. LOCAL GUSTS OVER 40 MPH WILL BE
POSSIBLE IN THOSE AREAS IN THE WAKE OF THE FRONTAL PASSAGE.
DRY CONDITIONS ARE EXPECTED BEYOND WEDNESDAY FOR THE NEXT SEVERAL
DAYS. OVERNIGHT LOWS WILL BE QUITE COLD WITH LOWS IN THE 20S AND 30S
ACROSS THE REGION BEHIND THE COLD FRONT. THE FROST/FREEZE SEASONS
HAVE CONCLUDED FOR ALL AREAS WITH THE TURN TO THE NEW YEAR SO NO
FROST HEADLINES WILL BE ISSUED. HOWEVER, OVERNIGHT LOW TEMPERATURES
MAY APPROACH 30F IN PORTIONS OF LAKE AND SOUTHERN MENDOCINO COUNTIES
THURSDAY AND PARTICULARLY FRIDAY MORNINGS. THE NEED FOR COLD WEATHER
ADVISORIES WILL HAVE TO BE CONTEMPLATED FOR THOSE TWO MORNINGS. A
WARMING TREND WILL LIKELY BEGIN OVER THE WEEKEND. /RPA
AVIATION
A WEAK FRONTAL BOUNDARY IS DROPPING SOUTH THIS MORNING
BRINGING SOME LIGHT RAIN AND OCCASIONAL MVFR CONDITIONS. THIS IS
EXPECTED TO MOVE OUT OF THE AREA BY FAIRLY EARLY THIS MORNING. LATER
THIS AFTERNOON ANOTHER ROUND OF SHOWERS IS EXPECTED TO BRING PERIODS
OF MVFR CONDITIONS. THIS WILL ALSO BRING SOME GUSTY SOUTHERLY WINDS.
IMMEDIATELY BEHIND THE SHOWERS WINDS ARE EXPECTED TO QUICKLY TURN
NORTHWESTERLY. VFR CONDITIONS ARE EXPECTED TO RETURN AT THE COAST,
HOWEVER THE INTERIOR VALLEYS WILL LIKELY SEE A RETURN OF CLOUDS AND
THIS MAY INCLUDE KUKI. MKK
MARINE
A WEAK FRONT IS BRINGING SOME LIGHT SOUTH TO SOUTHWEST
WINDS TO THE NORTHERN WATERS. THE SOUTHERN WATERS CONTINUES TO SEE
NORTH WINDS. AS THE FRONT MOVES OUT OF THE AREA WEDNESDAY NORTHWEST
WINDS RETURN TO ALL THE WATERS. THESE ARE EXPECTED TO INCREASE
THROUGH THE AFTERNOON AND PEAK WEDNESDAY NIGHT WITH SOME NEAR GALE
FORCE GUSTS.
A LARGE LONG PERIOD SWELL IS EXPECTED TO MOVE INTO THE WATERS
WEDNESDAY AND THURSDAY. THE FORERUNNERS OF THIS WAVE START TO BUILD
IN WEDNESDAY. INITIALLY THESE WAVES MAY BE AROUND 3 TO 4 FEET AT 21
SECONDS. THESE WILL BUILD THROUGH THE DAY AND OVERNIGHT TO AROUND 17
TO 19 FEET AT 17 SECONDS BY THURSDAY MORNING.
THE WINDS AND SEAS ARE EXPECTED TO DIMINISH FRIDAY, BUT THE SWELL
MAY REMAIN ABOVE 10 FEET UNTIL FRIDAY NIGHT. SATURDAY THE MODELS ARE
SHOWING A WEAK WEATHER SYSTEM BRINGING SOME SOUTHERLY WINDS TO THE
AREA. CURRENTLY THESE ARE ONLY AROUND 5 TO 15 KT IN MOST OF THE
MODELS. LATER ON SUNDAY AND INTO MONDAY HIGH PRESSURE IS EXPECTED
TO BRING A RETURN OF NORTHERLY WINDS. MKK
BEACH HAZARDS
A LARGE LONG PERIOD SWELL IS EXPECTED TO MOVE INTO
THE WATERS. THE MODELS ARE STILL IN FAIRLY GOOD AGREEMENT ON THIS,
ALTHOUGH THE PERIODS HAVE TRENDED SLIGHTLY LOWER THAN PREVIOUS MODEL
RUNS. THE FORERUNNERS OF THIS WAVE START TO BUILD IN WEDNESDAY.
INITIALLY THESE WAVES MAY BE AROUND 3 TO 4 FEET AT 21 SECONDS
BUILDING TO 5 TO 8 FEET BY MIDDAY. THERE WILL LIKELY BE QUITE A BIT
OF SET BEHAVIOR WITH THESE LONG PERIODS CREATING A SNEAKER WAVE
THREAT. THERE WILL BE SOME BACKGROUND SWELL AT 11 SECONDS, BUT WINDS
WILL REMAIN FAIRLY LIGHT. THE SETS MAY BE DISTINCT ENOUGH TO CATCH
SOME PEOPLE OFF GUARD. THESE WILL BUILD THROUGH THE DAY WEDNESDAY
AND OVERNIGHT TO AROUND 17 TO 19 FEET AT 16 SECONDS BY THURSDAY
MORNING. THIS WILL BRING BREAKERS TO THE WEST AND NORTHWEST FACING
BEACHES OF AROUND 22 TO 25 FEET. THE BEACH HAZARD STATEMENT
CONTINUES TO HIGHLIGHT THE SNEAKER WAVE THREAT ON THURSDAY. THE HIGH
SURF ADVISORY HIGHLIGHTS THE LARGE BREAKING WAVES WEDNESDAY NIGHT
AND THURSDAY. MKK
EKA WATCHES/WARNINGS/ADVISORIES
CA...
BEACH HAZARDS STATEMENT FROM 5 AM PST EARLY THIS MORNING
THROUGH THIS AFTERNOON FOR CAZ101-103-104.
HIGH SURF ADVISORY FROM 7 PM THIS EVENING TO 4 PM PST
THURSDAY FOR CAZ101-103-104-109.
BEACH HAZARDS STATEMENT FROM 9 AM PST THIS MORNING THROUGH
THIS AFTERNOON FOR CAZ109.
NORTHWEST CALIFORNIA COASTAL WATERS...
HAZARDOUS SEAS WARNING FROM 7 PM THIS EVENING TO 3 PM PST
THURSDAY FOR PZZ450-470.
SMALL CRAFT ADVISORY FROM 5 PM THIS AFTERNOON TO 11 PM PST
THIS EVENING FOR PZZ455.
HAZARDOUS SEAS WARNING FROM 11 PM THIS EVENING TO 3 PM PST
THURSDAY FOR PZZ455-475.
SMALL CRAFT ADVISORY FROM 3 PM THIS AFTERNOON TO 7 PM PST
THIS EVENING FOR PZZ470.
SMALL CRAFT ADVISORY FROM 3 PM THIS AFTERNOON TO 11 PM PST
THIS EVENING FOR PZZ475.
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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