949
FXUS66 KEKA 072114
AFDEKA
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
114 PM PST WED JAN 7 2026
SYNOPSIS
A FINAL ROUND OF SHOWERS WILL PASS BY THE AREA WEDNESDAY
EVENING WITH LIGHT SNOW AS LOW AS 1500 FEET. COOLER THAN NORMAL
CONDITIONS WILL CONTINUE INTO FRIDAY BUT SLOWLY WARM AND DRY THIS
WEEKEND.
DISCUSSION
LIGHT RAIN AND DRIZZLE CROSSED THE AREA
EARLY WEDNESDAY MORNING, DROPPING GENERALLY LESS THAN 0.1 INCHES.
AFTER BRIEF BREAKS IN CLOUD COVER DURING THE DAY, A SECOND,
SLIGHTLY STRONGER WAVE OF SHOWERS IS STARTING TO BUILD ALONG THE
COAST AS OF THE EARLY AFTERNOON.
A COLD FRONT AND ASSOCIATED SHOWERS WILL SWEEP FROM NORTH TO SOUTH
LATE THIS AFTERNOON AND THROUGH THE EARLY EVENING. THERE IS A SLIGHT
CHANCE (15%) OF MODERATE EMBEDDED THUNDERSTORMS ALONG THE COAST, BUT
OTHERWISE SHOWERS WILL BE MOSTLY LIGHT. ALONG THE COAST, 0.3 TO 0.6
INCHES OF RAIN IS MOST LIKELY THROUGH THE EVENING WITH LOCALLY HIGH
AMOUNTS INT HE MOUNTAINS (ESPECIALLY IN DEL NORTE) AND LOWER AMOUNTS
FOR THE SOUTHERN HALF OF THE AREA.
SNOW LEVELS (CURRENTLY AROUND 3000 FEET) WILL QUICKLY DROP ALONG
THE LINE WITH SOME SNOW LEVELS AS LOW AS 1500 FEET IN THE NORTHERN
HALF OF THE AREA. THAT SAID, THE SHORT LIVED NATURES OF THE SYSTEM
AND CURRENTLY WARM SURFACE TEMPERATURES WILL GREATLY LIMIT ANY SNOW
ACCUMULATION. THERE IS GENERALLY LESS THAN A 20% CHANCE OF SEEING
EVEN 3 INCHES OF WET SNOW ON SOME AREAS PASSES SUCH AS BERRY SUMMIT
AND COLLIER TUNNEL, THOUGH HIGH MOUNTAIN COULD CERTAINLY SEE MORE.
SOME MODERATE GUSTY NORTHWEST WINDS UP TO ABOUT 35 MPH WILL BUILD
BEHIND TO THE LINE, ESPECIALLY IN LAKE COUNTY, BUT THERE IS LITTLE
TO NO CHANCE OF ANY WINDS OVER 45 MPH.
COLD AIR WILL QUICKLY BUILD BEHIND THE SYSTEM INTO THURSDAY. AREAS
CLOSER TO THE COAST WILL STAY WARMER DUE TO CLOUDS AND RECENT TRAIN,
THOUGH SOME WINDCHILL NEAR 30 IS STILL LIKELY AROUND HUMBOLDT BAY.
WITH LOWS INT HE LOW 30S AND MODERATE WIND OVERNIGHT, WINDCHILL
WILL MOST LIKELY DROP INTO THE MID 20S FOR MANY INTERIOR LOCATIONS
EARLY THURSDAY, PARTICULARLY IN LAKE AND SOUTHERN MENDOCINO,
PROMPTING AN OVERNIGHT COLD WEATHER ADVISORY FOR THE AREA. WIND WILL
BE LESS THURSDAY INTO FRIDAY BUT DRIER AND MORE CLEAR CONDITIONS
WILL MOST LIKELY PROMPT COLDER TEMPERATURES ESPECIALLY ALONG THE
COAST WITH A 70% CHANCE OF LOWS AS LOW AS 30 AROUND HUMBOLDT BAY
FRIDAY MORNING.
OTHERWISE WEAK RIDGING SLOWLY BUILDING THIS WEEKEND INTO EARLY NEXT
WEEK WILL GRADUALLY WARM CONDITIONS FORM BELOW AVERAGE ON FRIDAY TO
ABOVE AVERAGE BY TUESDAY WITH SOME DAYTIME INTERIOR HIGHS IN THE LOW
70S BY EARLY NEXT WEEK. IN CONTRAST TO THE LAST COUPLE OF WEEK,
THERE IS VERY LITTLE CHANCE OF RAIN AFTER TODAY WITH ONLY 10% OF
ENSEMBLE MEMBERS INDICATING ANY CHANCE FOR WETTING RAIN DURING THE
WEEK. /JHW
AVIATION...(18Z TAFS)
A COLD FRONTAL BOUNDARY MOVING THROUGH
THE AREA THIS AFTERNOON WILL BRING LIGHT TO LOCALLY MODERATE RAIN
SHOWERS TO THE AREA. VFR TO MVFR CEILINGS ARE FORECAST THOUGH
EARLY THURSDAY, WITH BRIEF PERIODS OF IFR CEILINGS POSSIBLE IN
HEAVIER RAIN SHOWERS. GUSTY NORTHWEST WINDS EXCEEDING 20 KTS ARE
POSSIBLE STARTING THIS AFTERNOON AND EVENING, BUT ARE LIKELY TO
EASE OVERNIGHT. VFR CONDITIONS ARE LIKELY TO RETURN TONIGHT AS
OFFSHORE FLOW DEVELOPS AND REMAINING CEILINGS LIFT TO VFR. JB
MARINE
NORTHWEST WINDS HAVE STARTED TO INCREASE BEHIND A COLD
FRONTAL PASSAGE EARLY THIS MORNING. WINDS OF 15-25 KTS THIS MORNING
WILL INCREASE TO 20-30 KTS BY THIS AFTERNOON. SHOWERS AND
THUNDERSTORMS FROM ANOTHER COLD FRONTAL PASSAGE THIS AFTERNOON COULD
BRING ISOLATED GALE FORCE GUSTS. A LARGE LONG PERIOD SWELL FILLS IN
TODAY, WHICH WILL START AT AROUND 5 FT AT 21 SECONDS. THIS WILL
BUILD TO AROUND 18 TO 22 FT AT 17 SECONDS BY THURSDAY MORNING.
HAZARDOUS SEAS WARNINGS ARE IN EFFECT THROUGH THURSDAY AFTERNOON FOR
THIS LARGE SWELL.
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, BUT WINDS ARE CURRENTLY FORECAST TO REMAIN BELOW 20 KTS.
SUNDAY AND INTO MONDAY, HIGH PRESSURE IS EXPECTED TO BRING A RETURN
OF NORTHERLY WINDS. JB/MKK
BEACH HAZARDS
A LONG PERIOD NORTHWEST SWELL HAS STARTED TO FILL
INTO THE WATERS, AND PERIODS OF AROUND 22 SECONDS ARE BEING
OBSERVED. A BEACH HAZARD STATEMENT IS IN EFFECT TO 6 PM TODAY FOR
THE THREAT OF SNEAKER WAVES FROM THIS SWELL. THIS SWELL BUILDS THIS
AFTERNOON AND OVERNIGHT TO AROUND 18 TO 22 FT AT 17 SECONDS, WHICH
WILL PRODUCE BREAKING WAVES OF 22 TO 25 FEET. A HIGH SURF ADVISORY
FROM 6 PM THIS EVENING TO 4 PM THURSDAY FOR THIS THREAT OF LARGE,
POWERFUL SURF. 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 UNTIL 6 PM PST THIS EVENING FOR
CAZ101-103-104-109.
HIGH SURF ADVISORY FROM 6 PM THIS EVENING TO 4 PM PST
THURSDAY FOR CAZ101-103-104-109.
COLD WEATHER ADVISORY FROM 2 AM TO 8 AM PST THURSDAY FOR
CAZ113-115.
NORTHWEST CALIFORNIA COASTAL WATERS...
SMALL CRAFT ADVISORY UNTIL 6 PM PST THIS EVENING FOR PZZ450-
470.
HAZARDOUS SEAS WARNING FROM 6 PM THIS EVENING TO 3 PM PST
THURSDAY FOR PZZ450-470.
SMALL CRAFT ADVISORY UNTIL 11 PM PST THIS EVENING FOR
PZZ455-475.
HAZARDOUS SEAS WARNING FROM 11 PM THIS EVENING TO 3 PM PST
THURSDAY 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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