142
FXUS66 KEKA 302057
AFDEKA
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
157 PM PDT TUE JUN 30 2026
KEY MESSAGES
- GUSTY NORTH WINDS EACH AFTERNOON ALONG THE SHORE THROUGH MID WEEK.
- HOTTER TEMPERATURES OVER THE HOLIDAY WEEKEND
SYNOPSIS
GUSTY NORTH WINDS CONTINUE ALONG SHORE THROUGH
WEDNESDAY. SEASONABLY WARM TO BELOW AVERAGE TEMPERATURES THROUGH
THURSDAY BEFORE TEMPERATURES WARM UP FRIDAY AND THROUGH THE HOLIDAY
WEEKEND.
DISCUSSION
A NORMAL SUMMER PATTERN WILL PERSIST FOR THE NEXT WEEK
AS RIDGING BUILDS OVER THE INTER-MOUNTAIN WEST AND A TROUGH
SETTLES OVER BRITISH COLUMBIA. THIS WILL LEAVE NORTHWEST
CALIFORNIA SETTLED IN BETWEEN RESULTING IN MODEST FLUCTUATIONS IN
HIGH TEMPERATURES THROUGH EARLY NEXT WEEK. THE RIDGE WILL PUSH
TOWARD THE COAST OVER THE WEEKEND ALLOWING TEMPERATURES TO WARM
FROM THE 80S INTO THE 90S IN THE INTERIOR VALLEYS. AT THE COAST
NORTHERLY WINDS WILL BE GUSTY EACH AFTERNOON, STRONGEST TODAY AND
AGAIN WEDNESDAY, BUT GENERALLY BE ON A DOWN-TREND FROM THE VERY
GUSTY CONDITIONS THAT OCCURRED THE LAST FEW DAYS. TEMPERATURES
ALONG THE COAST ARE EXPECTED TO BE SEASONAL WITH HIGHS IN THE
LOWER 60S FOR MOST AREAS THROUGHOUT THE WEEK. AS WE HEAD INTO NEXT
WEEK, THE TROUGH IS FORECAST TO BEGIN SHIFTING EAST, NUDGING THE
WARMEST AIR BACK OUT OF OUR REGION FOR AT LEAST A BRIEF PERIOD.
TEMPERATURES THIS SATURDAY ON JULY 4TH ARE FORECAST TO BE AROUND 60
AT THE COAST AND IN THE LOWER TO MID 90S INLAND. CLOUD COVER MAY BE
MORE EXTENSIVE ALONG THE COASTLINE WITH MOISTURE INCREASING IN THE
BOUNDARY LAYER AS THE MARINE LAYER INVERSION STRENGTHENS DUE TO
THE BUILDING RIDGE. LOW STRATUS AND FOG MAY BE A CONCERN DURING
THE EVENING HOURS FOR COASTAL AREAS DEPENDING ON THE STRENGTH OF
THE COASTAL WINDS AND THE MIXING THOSE WINDS CAN PROVIDE. /RPA
AVIATION
VFR CONDITIONS ARE OCCURRING OVER THE ENTIRE REGION
AT THIS TIME. GUSTY NORTHERLY WINDS THIS AFTERNOON WILL DECREASE
OVERNIGHT FOR MOST TERMINALS EXCEPT AT CEC WHERE WINDS WILL LIKELY
REMAIN ELEVATED THROUGHOUT THE OVERNIGHT PERIOD. THERE IS
POTENTIAL FOR SOME STRATUS TO RE-FORM FROM APPROXIMATELY THE
HUMBOLDT BAY AREAS SOUTH TO ALONG THE MENDOCINO COAST WHERE IFR
CONDITIONS COULD DEVELOP FOR SEVERAL HOURS OVERNIGHT INTO THE
EARLY MORNING. OTHERWISE VFR IS LIKELY TO PREVAIL IN OTHER AREAS.
/RPA
MARINE
NORTHERLY GALES ARE NOW OCCURRING IN THE OUTER WATERS
WITH STEEP SHORT PERIOD SEAS REPORTED TO AS HIGH AS 14 FEET AT THE
CAPE MENDOCINO BUOY. THE STEEP SEAS ARE ALSO PROPAGATING INTO THE
INNER WATERS ZONES. THUS GALE WARNINGS REMAIN IN PLACE OVER THE
OUTER WATER AND WILL REMAIN IN PLACE THROUGH WEDNESDAY NIGHT,
WHILE HAZARDOUS SEAS WARNINGS HAVE BEEN ISSUED FOR THE INNER ZONES
WITH THE STEEPEST SEAS OUTSIDE OF 5 NM. WINDS WILL DIMINISH SOME
THURSDAY AND INTO FRIDAY AS A TROUGH PUSHES SURFACE HIGH PRESSURE
OVER THE EASTERN PACIFIC FARTHER SOUTHWEST OF THE AREA. THIS WILL
RESULT IN A WEAKENING OF THE PRESSURE GRADIENT AND THUS LIGHTER
WINDS AND LOWER SEAS, BUT STILL VERY LIKELY REMAINING WITHIN SMALL
CRAFT CRITERIA INTO THE HOLIDAY WEEKEND. /RPA
EKA WATCHES/WARNINGS/ADVISORIES
CA...
NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
HAZARDOUS SEAS WARNING UNTIL 6 AM PDT THURSDAY FOR PZZ450-
455.
GALE WARNING UNTIL 6 AM PDT THURSDAY 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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