751
FXUS66 KEKA 050711
AFDEKA
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
1211 AM PDT FRI JUN 5 2026
SYNOPSIS
DRY WEATHER ALONG WITH NEAR-NORMAL TEMPERATURES ARE
EXPECTED THROUGH THE WEEKEND. BREEZY WINDS ARE EXPECTED TODAY
THROUGH THE WEEKEND, WITH LOW RELATIVE HUMIDITIES IN THE INTERIOR
BRINGING ELEVATED FIRE WEATHER CONDITIONS. LIGHT RAIN IS POSSIBLE
MONDAY.
KEY MESSAGES
- NEAR NORMAL TEMPERATURES AND DRY WEATHER EXPECTED THROUGH THE
WEEKEND.
- WIDESPREAD BREEZY TO GUSTY WINDS EACH AFTERNOON AND EVENING FRIDAY
AND THROUGH THE WEEKEND, WITH LOW RH VALUES PROMOTING LOCALLY
ELEVATED FIRE CONDITIONS ACROSS THE INTERIOR.
- CHANCE FOR LIGHT RAIN MONDAY.
DISCUSSION
HIGH PRESSURE WEAKENS TODAY AS A TROUGH APPROACHES THE
PACIFIC NORTHWEST. A TIGHT PRESSURE GRADIENT WITH ZONAL FLOW WILL
BRING GUSTY WEST-NORTHWEST WINDS TO THE INTERIOR. THIS MAY SUPPORT
TEMPERATURES A FEW DEGREES COOLER THAN THURSDAY, BUT ALSO BRING
ELEVATED FIRE WEATHER CONDITIONS TO LAKE COUNTY, EASTERN MENDOCINO,
AND EASTERN TRINITY COUNTIES, AS DAYTIME RELATIVE HUMIDITIES FALL
INTO 20S. SEE THE FIRE WEATHER SECTION FOR MORE DETAILS. COASTAL
AREAS COULD SEE PEAK GUSTS OF 20 TO 25 MPH, WITH GUSTS UP TO 30 TO
35 MPH ON EXPOSED RIDGES AND COASTAL HEADLANDS. COASTAL MENDOCINO,
ESPECIALLY COULD SEE GUSTS AS HIGH AS 40 MPH. INTERIOR AREAS COULD
SEE GUSTS UP TO 25 TO 30 MPH, THOUGH SOME WIND PRONE AREAS (LIKE
LAKE COUNTY) COULD SEE LOCALIZED AREAS OF GUSTS UP TO 35 MPH.
SATURDAY, HIGH TEMPERATURES ARE EXPECTED TO FALL 5 TO 10 DEGREES
WITH MANY INTERIOR AREAS DIPPING INTO THE 70S OR LOW 80S, WITH NEAR
TO SLIGHTLY BELOW NORMAL TEMPERATURES ACROSS THE AREA. BREEZY
AFTERNOON WEST-NORTHWEST WINDS ARE LIKELY TO CONTINUE AND COULD EVEN
BE STRONGER THAN FRIDAY'S WINDS. GENERALLY, PEAK GUSTS OF 25 TO 35
MPH ARE LIKELY ACROSS THE AREA, WITH LOCALLY HIGHER AMOUNTS ON
COASTAL HEADLANDS AND EXPOSED RIDGES. SUNDAY, HIGH TEMPERATURES
REBOUND SLIGHTLY ACROSS THE INTERIOR AS HIGH PRESSURE TEMPORARILY
REBUILDS. WINDS EASE SLIGHTLY, BUT STILL COULD BE BREEZY ALONG THE
MENDOCINO COAST AND WIND PRONE AREAS IN THE AFTERNOON.
CONFIDENCE IS INCREASING ON A PATTERN CHANGE EARLY NEXT WEEK, AND
MODELS HAVE GENERALLY BEEN TRENDING WETTER. NBM IS SHOWING AROUND A
60-70% CHANCE FOR OVER A TENTH OF AN INCH OF RAIN FOR MUCH OF
HUMBOLDT AND DEL NORTE. TRINITY, MENDOCINO, AND LAKE COUNTIES HAVE
AROUND A 30-50% CHANCE FOR A TENTH OF AN INCH. NBM IS SHOWING A LOW-
END CHANCE (30%) FOR AN INCH OF RAIN IN DEL NORTE. THERE IS A LOT OF
MODEL SPREAD, AND THE CHANCE FOR NO MEASURABLE PRECIPITATION IS
AROUND 50-60% IN SOUTHERN LAKE AND MENDOCINO. MEANWHILE, THERE IS
AROUND A 25% CHANCE FOR NO MEASURABLE RAIN IN COASTAL HUMBOLDT AND
DEL NORTE. THIS WILL BECOME CLEARER OVER THE COMING DAYS.
REGARDLESS, GENERALLY MILD CONDITIONS ARE FORECAST THROUGH LATE NEXT
WEEK WITH NEAR TO SLIGHTLY BELOW NORMAL HIGH TEMPERATURES. JB
AVIATION...(6Z TAFS)
STRATUS HAS STARTED TO FORM IN HUMBOLDT
COUNTY LATE THIS EVENING. IFR TO MVFR STRATUS IMPACTS ARE LIKELY
OVERNIGHT FOR COASTAL HUMBOLDT, INCLUDING ACV. SOUTH WINDS OFFSHORE
HUMBOLDT MAY BRING STRATUS NORTHWARD TO CEC, THOUGH CONFIDENCE IS
NOT HIGH AS NORTH WINDS REMAIN HIGH OFFSHORE. LIGHTER WINDS ARE
LIKELY THIS AFTERNOON COMPARED TO THURSDAY, THOUGH GUSTS UP TO 20 TO
25 KTS ARE STILL POSSIBLE. AT LEAST PARTIAL CLEARING IS EXPECTED BY
THE AFTERNOON, BRINGING VFR CONDITIONS ACROSS THE AREA. JB
MARINE
NEAR-GALE TO GALE FORCE GUSTS CONTINUE SOUTH OF CAPE
MENDOCINO EARLY THIS MORNING. STEEP WIND WAVES OF 12 FT HAVE BEEN
OBSERVED HERE AND ARE EXPECTED TO CONTINUE TODAY. NORTH OF CAPE
MENDOCINO, WINDS ARE EXPECTED TO GRADUALLY DECREASE TODAY AS A
TROUGH APPROACHES THE PACIFIC NORTHWEST. STILL GUSTS OF 15 TO 20 KTS
ARE POSSIBLE IN THE OUTER WATERS THIS AFTERNOON. WINDS INCREASE
AGAIN SATURDAY BEHIND THIS FRONT, WITH NEAR-GALE TO GALE FORCE GUSTS
LIKELY TO CONTINUE IN THE LEE OF CAPE MENDOCINO THROUGH THE WEEKEND.
MODERATE BREEZES ARE LIKELY IN THE NORTHERN OUTER WATERS SATURDAY.
WINDS BEGIN TO DECREASE AGAIN IN THE NORTHERN WATERS SUNDAY AS
ANOTHER TROUGH APPROACHES THE PACIFIC NORTHWEST. THIS TROUGH IS
LIKELY TO MOVE FARTHER SOUTH, FINALLY ALLOWING FOR A BREAK IN THE
NORTH WINDS. SEAS WILL GRADUALLY SUBSIDE AND COULD BE BELOW 6 FT
ACROSS ALL WATERS BY MONDAY AFTERNOON. CONDITIONS REMAIN MILD
THROUGH TUESDAY, BUT MODERATE TO STRONG NORTH WINDS ARE LIKELY TO
RETURN TUESDAY NIGHT INTO WEDNESDAY. JB
FIRE WEATHER
GUSTY WEST-NORTHWEST WINDS ARE EXPECTED IN INTERIOR
AREAS EACH AFTERNOON THROUGH SUNDAY. THESE WINDS COMBINED WITH LOW
AFTERNOON RELATIVE HUMIDITIES WILL PROMOTE ELEVATED FIRE WEATHER
CONDITIONS. WHILE THE STRONGEST WINDS ARE EXPECTED IN THE RIDGES
WHERE AFTERNOON GUSTS COULD PEAK OVER 30 MPH, LOWER ELEVATIONS COULD
SEE GUSTS OF 20 TO 30 MPH EACH AFTERNOON. IN THE EASTERN PORTIONS OF
THE AREA (TRINITY, EASTERN MENDOCINO, AND LAKE COUNTIES), AFTERNOON
RELATIVE HUMIDITIES ARE EXPECTED TO DROP INTO THE LOW TO MID 20S
FRIDAY AFTERNOON. LOCALLY HIGHER WINDS IN LAKE COUNTY, WHERE FINE
FUELS ARE RELATIVELY DRY, IS EXPECTED TO BRING LOCALLY CRITICAL FIRE
WEATHER CONDITIONS. SATURDAY, WINDS ARE EXPECTED TO REMAIN SIMILARLY
BREEZY, THOUGH TEMPERATURES ARE EXPECTED TO BE SLIGHTLY COOLER AND
RHS SLIGHTLY HIGHER. SUNDAY, WINDS ARE EXPECTED TO BE LIGHTER, BUT
STILL BREEZY WITH GUSTS UP TO 20 TO 25 MPH. RHS ARE LIKELY TO BE
LOWER WITH MANY INTERIOR AREAS SEEING RHS IN THE TEENS. A TROUGH
MONDAY MAY BRING WETTING RAIN TO THE AREA, WITH THE HIGHEST CHANCES
IN DEL NORTE, HUMBOLDT, AND TRINITY COUNTIES. JB
EKA WATCHES/WARNINGS/ADVISORIES
CA...
NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
SMALL CRAFT ADVISORY UNTIL NOON PDT TODAY FOR PZZ450.
GALE WARNING UNTIL MIDNIGHT PDT TONIGHT FOR PZZ455-475.
SMALL CRAFT ADVISORY UNTIL 3 PM PDT THIS AFTERNOON FOR
PZZ470.
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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