425
FXUS66 KEKA 022149
AFDEKA
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
249 PM PDT TUE JUN 2 2026
SYNOPSIS
ABOVE-SEASONABLE TEMPERATURES ARE EXPECTED TO
CONTINUE WITH WIDESPREAD MINOR HEATRISK FOR THE INTERIOR THROUGH
TODAY. TEMPERATURES WILL COOL GRADUALLY STARTING ON WEDNESDAY AND
INTO THE WEEKEND. A WEAK COLD FRONT WILL PROMOTE A DEEPENING
MARINE LAYER AND COASTAL DRIZZLE. ENHANCED WEST TO NORTHWEST WINDS
THROUGH THE CHANNELED TERRAIN AND HIGHER TERRAIN ON WEDNESDAY,
SHIFTING TO THE COAST THURSDAY AFTERNOON. ADDITIONAL BREEZY TO
GUSTY WINDS POSSIBLE FRIDAY AND INTO THE WEEKEND
KEY MESSAGES
- ABOVE-NORMAL TEMPERATURES THROUGH TODAY, WITH INTERIOR MINOR
HEATRISK.
- GRADUAL COOLING TREND AND DEEPENING MARINE LAYER THIS WEEK AND
CONTINUING INTO THE WEEKEND.
- ENHANCED WEST-NORTHWEST WINDS THROUGH THE CHANNELED TERRAIN AND
HIGHER RIDGES ON WEDNESDAY, THEN SHIFTING TO THE COAST ON
THURSDAY.
- ANOTHER WEAK COLD FRONT HAS THE POTENTIAL TO BRING BREEZY TO
GUSTY WINDS FRIDAY AND INTO THE WEEKEND.
DISCUSSION
VISIBLE SATELLITE DEPICTS SUNNY TO PARTLY CLOUDY
SKIES ACROSS THE INTERIOR, WITH HIGH-LEVEL CLOUDS STREAMING
ACROSS THE AREA AS A SHORTWAVE TROUGH APPROACHES NORTHERN
CALIFORNIA. MEANWHILE, MESOSCALE ANTICYCLONIC EDDIES ALONG THE
COAST ARE KEEPING THE SHORELINE WITH LOW CLOUDS MOVING IN AND OUT.
OTHERWISE, ONSHORE FLOW WILL PUSH THE STRATUS AND FOG BACK INLAND
LATER THIS AFTERNOON AND EVENING. AFTERNOON TEMPERATURES ARE
RUNNING 3 TO 10 DEGREES COOLER FOR THE COASTAL COUNTIES COMPARED
WITH YESTERDAY'S READINGS, WHILE FARTHER EAST IN TRINITY AND LAKE
COUNTIES, HIGHS ARE RUNNING UP TO 5 DEGREES WARMER.
THE MARINE LAYER IS EXPECTED TO SLIGHTLY DEEPEN TONIGHT INTO
WEDNESDAY. PATCHY DRIZZLE IS EXPECTED TO OCCUR ALONG THE NORTH
COAST AS A RESULT OF THE SATURATED LAYER.
A GRADUAL COOLING TREND WILL START ON WEDNESDAY AS A COLD FRONT
MOVES THROUGH. ENHANCED WEST-NORTHWEST WINDS ARE EXPECTED ALONG
THE CHANNELED TERRAIN AND EXPOSED RIDGES IN THE WAKE OF THE FRONT.
GUSTS FROM 25 TO 35 MPH ARE MOST LIKELY, WITH LOCALLY UP TO
AROUND 40 MPH POSSIBLE. MENDOCINO AND LAKE COUNTIES WILL SEE
BETTER COVERAGE OF STRONGER WINDS, WHERE THERE IS A HIGH
PROBABILITY (60 TO 80%) FOR GUSTS OVER 30 MPH WEDNESDAY AFTERNOON
AND EVENING. THE COMBINATION OF DRY WEATHER, WARM TEMPERATURES,
AND GUSTY WINDS WILL BRING A LOCALLY ELEVATED FIRE WEATHER THREAT
FOR PORTIONS OF LAKE COUNTY (SEE FIRE WEATHER SECTION). OTHER THAN
MORE COASTAL LOW CLOUDS, BOUTS OF PATCHY DRIZZLE WILL ALSO BE
POSSIBLE WEDNESDAY NIGHT.
THURSDAY, A SURFACE HIGH PRESSURE WILL BUILD IN. THIS WILL AID IN
REBOUNDING DAYTIME TEMPERATURES ACROSS THE AREA ON THURSDAY. IN
ADDITION, BREEZY NORTH- NORTHWEST GUSTS OF 25 TO 35 MPH IS
EXPECTED OVER THE COASTAL AND EXPOSED RIDGES. LOCALLY STRONGEST
WINDS ARE POSSIBLE OVER THE EXPOSED RIDGES IN THE KING RANGE.
EXPECT LOW CLOUDS MIXING AND CLEARING OUT THURSDAY AFTERNOON,
ALLOWING A MOSTLY SUNNY DAY, WITH MORE STRATUS REDEVELOPING
OVERNIGHT AROUND HUMBOLDT BAY AND VICINITY.
A STRONGER UPPER-LEVEL TROUGH WILL DRIVE SOUTHWARD FRIDAY AND
THROUGH THE WEEKEND, PROMOTING SEASONAL TEMPERATURES. ADDITIONAL
BREEZY TO GUSTY WINDS ARE ALSO EXPECTED WITH THE PRESSURE GRADIENT
TIGHTENING ACROSS THE AREA. DRY WEATHER IS EXPECTED TO REMAIN
UNDER PREVAILING DRY WEATHER THROUGH THIS WEEKEND. /ZVS
AVIATION
STRATUS IS IN PLACE ALONG THE COAST THIS AFTERNOON.
THERE MAY BE A FEW BRIEF BREAKS LATE THIS AFTERNOON, BUT IN GENERAL
EXPECTED THE SUNSHINE IS OVER FOR THE COASTAL AIRPORTS THIS EVENING.
TONIGHT THE MARINE LAYER MAY MAY DEEPEN SLIGHTLY AS A SHORTWAVE
MOVES PAST THE AREA LATE TONIGHT AND EARLY WEDNESDAY. THIS MAY ALLOW
THE MARINE LAYER TO DEEPEN ENOUGH THAT IT WILL MAKE ITS WAY NORTH
INTO UKI TOWARDS MORNING. WEDNESDAY AFTERNOON HAS A BETTER CHANCE OF
SEEING SOME CLEARING AT THE IMMEDIATE COAST, ALTHOUGH THIS MAY TAKE
UNTIL MID TO LATE AFTERNOON. WEDNESDAY NIGHT STRATUS WILL LIKELY
RETURN TO COAST, BUT IT MAY TAKE UNTIL 6Z OR SO. MKK
MARINE
WINDS HAVE DIMINISH TODAY AND SOME LOCAL SOUTHERLY WINDS
MAY DEVELOP ALONG THE COAST AGAIN TONIGHT. THESE WINDS ARE EXPECTED
TO REMAIN LOWER TUESDAY NIGHT AND EARLY WEDNESDAY. WEDNESDAY
AFTERNOON HIGH PRESSURE BUILDS BACK INTO THE AREA AND NORTHERLY
WINDS QUICKLY INCREASE ONCE AGAIN WEDNESDAY NIGHT. THURSDAY AND
FRIDAY NEAR GALE TO GALE FORCE GUSTS ARE EXPECTED ACROSS THE WATERS
ONCE AGAIN. THE GALE WATCH FOR THE SOUTHERN WATERS REMAINS ON TRACK.
FARTHER NORTH IT LOOKS LIKE WINDS MAY GENERALLY REMAIN IN THE NEAR
GALE RANGE, SO HAVE NOT ISSUED A GALE WATCH THERE. THIS WILL NEED TO
BE MONITORED AS IT GETS CLOSER. GENERALLY THE WAVES ARE EXPECTED TO
BE STEEP AND WIND DRIVEN WITH NO NOTABLE SWELLS. MKK
FIRE WEATHER
ENHANCED WEST- NORTHWEST WINDS IS EXPECTED ALONG
THE CHANNELED TERRAIN AND EXPOSED RIDGES ON WEDNESDAY, WITH GUSTS
OF 20 TO 35 MPH LIKELY. LOCALLY HIGHER GUSTS ARE POSSIBLE SOUTH
IN LAKE COUNTY. ONSHORE MARINE MOISTURE WILL CONTINUE TO PROMOTE
MODERATE TO GOOD RH RECOVERIES FOR AREAS BELOW THE INVERSION
(<2000 FEET). DAYTIME RH RECOVERIES WILL BE GENERALLY IN THE
UPPER 20S AND 30S PERCENT ON WEDNESDAY, WITH A SLIGHT LOWER
PERCENT EACH DAY THROUGH FRIDAY. LOCALLY ELEVATED FIRE WEATHER
CONDITIONS ARE EXPECTED ON ZONES 419 AND 421 ON WEDNESDAY DUE TO
LOW DAYTIME RH COMBINE WITH LOCALLY GUSTY WINDS OVER THE RIDGES. A
DEEPER TROUGH WILL LIKELY BRING STRONGER WINDS FRIDAY AND INTO
THE WEEKEND. /ZVS
EKA WATCHES/WARNINGS/ADVISORIES
CA...
NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
SMALL CRAFT ADVISORY UNTIL 3 PM PDT THIS AFTERNOON FOR
PZZ475.
GALE WATCH FROM LATE WEDNESDAY NIGHT THROUGH LATE THURSDAY
NIGHT 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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