626
FXUS66 KEKA 132049
AFDEKA
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
149 PM PDT WED MAY 13 2026
SYNOPSIS
SCATTERED CLOUDS AND COOLER TEMPERATURES FOR WEDNESDAY.
A SLIGHT INCREASE IN THE TEMPERATURES IS EXPECTED THURSDAY BEFORE
COOLER AND WINDY CONDITIONS FRIDAY AND SATURDAY. SUNDAY AND MONDAY
TEMPERATURES START TO WARM AGAIN WITH CONTINUED NORTHERLY WINDS.
KEY MESSAGES
- INCREASING NORTH WINDS ACROSS THE AREA INTO THE WEEKEND.
- COOLER TEMPERATURES FRIDAY AND SATURDAY.
- WARMING TREND SUNDAY INTO NEXT WEEK.
SHORT TERM...(THIS AFTERNOON THROUGH SATURDAY)
MOST OF THE INTERIOR VALLEYS ARE EXPECTED TO SEE TEMPERATURES
ONLY WARM INTO THE UPPER 60S TO MID 70S. LAKE COUNTY MAY REACH THE
UPPER 70S IN SOME LOCATIONS, ESPECIALLY SOUTH OF CLEAR LAKE. THE
COAST IS SHOWING SCATTERING CLOUD COVERAGE ALLOWING TEMPS WARM TO
AROUND 60. THURSDAY, A BRIEF RIDGE BUILDS IN REBOUNDING
TEMPERATURES BACK INTO THE 80S IN MOST OF THE INTERIOR VALLEYS.
GUSTY NORTH TO NORTHWEST WINDS ARE EXPECTED AS WELL, ENHANCING
UPVALLEY WINDS. THURSDAY NIGHT INTO FRIDAY MORNING THE WINDS AT
HIGHER TERRAIN WILL REMAIN ELEVATED. FRIDAY NIGHT INTO SATURDAY A
WEAK FRONT TO THE NORTH OF THE AREA WILL INCREASES THE NORTHERLY
WINDS AND CLOUD COVERAGE. AT THIS POINT, RAIN IS NOT EXPECTED
(<20% OF 0.01") AS THE MAIN INFLUENCE OF THE FRONT WILL BE FELT IN
OREGON. HOWEVER, THIS FRONT WILL COOL TEMPERATURES FOR FRIDAY
WITH EVEN MORE ADDITIONAL COOLING SATURDAY. HIGHS ON SATURDAY WILL
STRUGGLE TO BREAK 70F WITH A 20% CHANCE OF >70F IN THE WARMEST
VALLEYS WHILE OTHER AREAS REMAINING IN THE UPPER 50S AND 60S.
SATURDAY, THE STRONGEST WINDS ARE PREDICTED AS A BUILDING HIGH
PRESSURE SYSTEM TO THE WEST INTERACTS WITH A LOW PRESSURE CENTER
TO THE EAST. MANY AREAS ARE EXPECTED TO SEE GUSTS OVER 30 MPH AND
THERE ARE EXPECTED TO BE SOME AREAS WITH GUSTS OVER 40 WITH A
30-40% LIKELIHOOD FOR EXPOSED AREAS. THE INCREASED MIXING AND LACK
OF A MARINE INVERSION SHOULD BRING PLENTY OF SUNSHINE TO THE
COAST.
LONG TERM...(SUNDAY THROUGH TUESDAY)
SUNDAY HIGH PRESSURE STARTS TO BUILD BACK INTO THE AREA ON
SUNDAY. NORTHERLY WINDS REMAIN STRONG AS THE SYSTEM THAT MOVED BY
TO THE NORTH OF THE AREA DROPS INTO THE GREAT BASIN. THESE MAY
WEAKEN SLIGHTLY IN AREAS AWAY FROM THE COAST AND IN E-W ORIENTATED
VALLEYS. THESE WINDS WILL ADVECT MARINE AIR, KEEPING THE AREAS
NEAR THE COAST AND UP THE RIVER VALLEYS COOLER THAN AREAS FARTHER
INLAND. HIGHS AWAY FROM THE COAST SHOULD WARM INTO THE 70S AGAIN
TO END THE WEEKEND. A WARMING TREND IS FORECASTED EARLY WEEK WITH
HIGHS FINALLY WARMING BACK INTO THE UPPER 80S TO LOW 90S INLAND.
THE STRONG NORTHERLY WINDS ARE FINALLY EXPECTED TO DIMINISH
STARTING MONDAY AND TUESDAY, BUT REMAIN BREEZY. OVERNIGHT THE
WINDS TURN OFFSHORE AND MAY HELP KEEP THE COASTAL CLOUDS OUT OF
THE AREA. NORTHERLY WINDS CALM MUCH MORE WEDNESDAY THROUGH THE END
OF NEXT WEEK.
AVIATION
MAINLY VFR CONDITIONS AND BREEZY NW WINDS ACROSS ALL
TERMINALS THIS AFTERNOON. SURFACE WINDS ARE EXPECTED TO EASE AFTER
14/03Z, AND BECOME LIGHT N WINDS TO VERY LIGHT AND VARIABLE. HREF
MODEL GUIDANCES SUGGEST LOW CLOUDS DEVELOPING AROUND THE HUMBOLDT
BAY AND VICINITY AFTER 14/04Z. THERE IS A 25-35% CHANCES OF MVFR TO
IFR CLOUDS IMPACTING THE COASTAL TERMINALS TONIGHT, ESPECIALLY AT
ACV. ANY LOW CLOUDS IS ANTICIPATED TO LIFT AND CLEAR OUT AFTER
SUNRISE. SURFACE WINDS ARE FORECAST TO INCREASE LATE THURSDAY
MORNING, WITH GUSTY WINDS UP TO 25 KTS THURSDAY AFTERNOON AT ALL
TERMINALS. /ZVS
MARINE
NORTHERLY WINDS CONTINUE TO INCREASE ACROSS THE COASTAL
WATERS THIS AFTERNOON AND EVENING. EXPECT MODERATE TO STRONG BREEZES
FOR THE SOUTHERN WATERS, WHILE GENTLE TO MODERATE FOR THE NORTHERN
WATERS. THESE WINDS WILL CONTINUE TO STEADILY INCREASE THROUGH
THURSDAY, WITH THE STRONG BREEZE EXPANDED INTO THE NORTHERN OUTER
WATERS. GALE FORCE GUSTS ARE LIKELY IN THE LEEWARD OF CAPE MENDOCINO
ON THURSDAY AFTERNOON, BEFORE INCREASE IN COVERAGE ACROSS THE
SOUTHERN OUTER WATERS THURSDAY EVENING. A GALE WARNING IS IN EFFECT
FOR ZONE 475 FROM THURSDAY AFTERNOON THROUGH LATE FRIDAY NIGHT.
THESE STRONG WINDS ARE POSSIBLE TO EXPANDED INTO THE SOUTHERN INNER
WATERS WITH THE STRENGTHENING PRESSURE GRADIENT NEARSHORE. AT THIS
POINT THE COVERAGE IS NOT ENOUGH (<50%) TO UPGRADE THE SMALL CRAFT
ADVISORY TO GALE FORCE WARNING. NEXT SHIFT WILL CONTINUE TO EVALUATE
ANY CHANGES ON THIS. A SMALL CRAFT ADVISORY FOR WINDS IS NOW IN
EFFECT FOR ZONE 470 FROM FRIDAY MORNING THROUGH LATE FRIDAY NIGHT.
WINDS MAY DIMINISH SLIGHTLY ON MONDAY. THE WAVES THROUGH THIS ARE
GENERALLY EXPECTED TO DOMINATED BY STEEP WIND DRIVEN WAVES. /ZVS
EKA WATCHES/WARNINGS/ADVISORIES
CA...
NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
SMALL CRAFT ADVISORY FROM 5 PM THIS AFTERNOON TO 3 AM PDT
SATURDAY FOR PZZ455.
SMALL CRAFT ADVISORY FROM 5 AM FRIDAY TO 3 AM PDT SATURDAY
FOR PZZ470.
SMALL CRAFT ADVISORY UNTIL 3 PM PDT THURSDAY FOR PZZ475.
GALE WARNING FROM 3 PM THURSDAY TO 3 AM PDT SATURDAY 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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