167
FXUS66 KEKA 060717
AFDEKA
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
1217 AM PDT WED MAY 6 2026
SYNOPSIS
WEAK HIGH PRESSURE BUILDING INTO THE AREA WILL
GRADUALLY WARM INLAND TEMPERATURES THROUGH THURSDAY. CLOSER TO THE
COAST WIDESPREAD LOW CLOUDS WILL LINGER KEEPING TEMPERATURES
COOLER. FRIDAY WILL SEE SLIGHTLY COOLER TEMPERATURES AND MORE
CLOUDS. FOR THE WEEKEND AND INTO EARLY NEXT HIGHS ARE EXPECTED TO
WARM EACH DAY WITH MANY INLAND AREAS SEEING THE 90S BY MONDAY.
KEY MESSAGES:
NEAR TO ABOVE NORMAL INLAND TEMPERATURES WEDNESDAY AND THURSDAY
WITH SOME COOLING FRIDAY.
BREEZY NORTH WINDS THIS WEEKEND WITH WELL ABOVE NORMAL
TEMPERATURES INLAND.
MINOR TO MODERATE HEAT RISK IS POSSIBLE ON MONDAY IN MENDOCINO,
LAKE AND TRINITY COUNTIES.
DISCUSSION
HIGH PRESSURE IS BUILDING OVER THE AREA IN THE WAKE
OF A DEPARTING LOW. THIS WILL BRING CLEARING SKIES AND WARMING
TEMPERATURES FOR SOME AREAS OF TRINITY COUNTY. THE COASTAL
COUNTIES AND LAKE COUNTY ARE SEEING WIDESPREAD STRATUS THIS
MORNING. SOME PORTIONS OF TRINITY COUNTY ARE ALSO SEEING STRATUS.
THIS WILL LIKELY SLOW THE WARMING TREND IN THESE AREAS ON
WEDNESDAY. CLOUDS ARE EXPECTED TO CLEAR BACK CLOSER TO THE COAST
BY THE AFTERNOON, BUT THE COAST IS EXPECTED TO REMAIN FAIRLY
CLOUDY. WEDNESDAY NIGHT INTO THURSDAY THE AREA IS EXPECTED TO SEE
LESS STRATUS, BUT IT IS STILL EXPECTED TO MAKE IT QUITE A WAYS
INLAND. THIS WILL AGAIN LIKELY KEEP TEMPERATURES COOLER THAN
EXPECTED IN THESE AREAS.
THURSDAY NIGHT INTO FRIDAY A WEAK FRONT WILL BRING SOME MID LEVEL
CLOUDS AND COOLER TEMPERATURES TO TRINITY COUNTY. THIS MAY BRING
SOME DRIZZLE TO THE COAST, BUT AT THIS POINT NO REAL RAIN IS
EXPECTED. FRIDAY NIGHT INTO SATURDAY NORTHERLY WINDS ARE EXPECTED
TO INCREASE. OFFSHORE FLOW IS EXPECTED OVERNIGHT WITH BREEZY
AFTERNOON WINDS. INLAND AREAS ARE EXPECTED TO WARM AGAIN ON
SATURDAY AND WITH MOSTLY CLEAR SKIES AREAS CLOSER TO THE COAST
WILL LIKELY WARM UP TOO. THE BREEZY NORTHERLY WINDS TYPICALLY KEEP
THE IMMEDIATE COAST IN THE LOW 60S. THE WARMING TREND IS EXPECTED
TO CONTINUE INTO EARLY NEXT WEEK. AT THIS POINT THE FIRST DAY
EXPECTED TO SEE MODERATE HEAT RISK IN THE FAR INLAND AREAS IS
MONDAY. HOWEVER, THERE IS SOME POTENTIAL AN UPPER LOW COULD
DEVELOP OFF THE COAST WEAKEN THE WIND FLOW ALLOWING CLOUDS AND
MARINE AIR CREEP INTO THE COASTAL COUNTIES LIMITING THE HEATING
POTENTIAL. MKK
AVIATION
WIDESPREAD STRATUS REMAINS IN PLACE ACROSS THE COASTAL
COUNTIES AS WELL AS LAKE COUNTY. CIGS ARE GENERALLY MVFR IN THIS
STRATUS IN THE VALLEYS. TOWARDS SUNRISE AS THE HIGH PRESSURE
BUILDS IN THIS IS EXPECTED TO SLOWLY FLATTEN THE STRATUS AND LOWER
THE CIGS. SOME AREAS MAY DROP INTO THE IFR CATEGORY. THROUGH THE
DAY WEDNESDAY CIGS ARE EXPECTED TO LIFT AND CLEAR IN THE INLAND
AREAS. THIS COAST IS EXPECTED TO REMAIN CLOUDY, BUT CIGS MAY LIFT
TO VFR OR NEAR VFR. NORTHERLY WINDS ARE EXPECTED TO INCREASE
SLIGHTLY IN THE AFTERNOON TO AROUND 10 KT. MKK
MARINE
THE WINDS REMAIN FAIRLY LIGHT OUT OF THE NORTH THIS
MORNING, AROUND 5 KT IN THE NORTH TO 10 KT IN THE SOUTH. LATER
TODAY AND THIS EVENING WINDS ARE EXPECTED TO INCREASE SLIGHTLY TO
AROUND 10 TO 15 KT. THIS WILL DEVELOP SOME 2 TO 4 FOOT WIND DRIVEN
WAVES. IN ADDITION THERE IS EXPECTED TO BE A COUPLE NORTHWEST
SWELLS. IT LOOKS LIKE ONE WILL BE AROUND 12 TO 14 SECONDS AND ONE
AROUND 8 TO 10 SECONDS. THESE BOTH LOOK TO BE AROUND 3 FEET.
WINDS ARE EXPECTED TO REMAIN AROUND 10 TO 15 KT THROUGH THURSDAY
EVENING. THURSDAY NIGHT INTO FRIDAY A WEAK FRONT APPROACHING THE
AREA IS EXPECTED TO BRING LIGHTER WINDS NORTH OF CAPE MENDOCINO.
ONLY AROUND 5 TO 10 KT AND THESE MAY BRIEFLY BECOME WEST OR
SOUTHWEST. FARTHER SOUTH THE WINDS ARE EXPECTED TO INCREASE TO
AROUND 15 TO 20 KT. BEHIND THE FRONT ON THE WEEKEND WINDS ARE
EXPECTED TO INCREASE TO NEAR GALE OR GALE FORCE AS HIGH PRESSURE
BUILDS IN AGAIN. THERE IS EXPECTED TO BE A FAIRLY SMALL NORTHWEST
SWELL THROUGH MUCH OF THE PERIOD. FRIDAY NIGHT AND SATURDAY BEHIND
THE WEAK FRONT THE SWELL MAY INCREASE SLIGHTLY WITH PERIODS
JUMPING UP TO AROUND 15 SECONDS, BUT HEIGHTS REMAIN AROUND 3 OR 4
FEET. MKK
EKA WATCHES/WARNINGS/ADVISORIES
CA...
NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
NONE.
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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