423
FNUS56 KEKA 040703
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE EUREKA CA
1203 AM PDT MON MAY 4 2026
DISCUSSION
SHOWERS MOVE SOUTH AND TAPER OFF TODAY. ISOLATED
THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON IN THE INTERIOR. WARMER
AND DRIER WEATHER EXPECTED FOR THE REMAINDER OF THE WEEK.
CAZ401-050115-
COASTAL DEL NORTE-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS EARLY IN
THE MORNING. PATCHY DENSE FOG UNTIL LATE AFTERNOON.
* MAX TEMPERATURE...54-62.
* MIN HUMIDITY...83-93 PERCENT.
* MIXING HEIGHT...2100 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 2 TO 4 MPH...BECOMING
SOUTHWEST 5 MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 4 MPH...BECOMING SOUTHWEST 5
MPH IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY. PATCHY FOG.
* MIN TEMPERATURE...45-53.
* MAX HUMIDITY...93-100 PERCENT.
* MIXING HEIGHT...400 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 1 TO 3 MPH.
RIDGES...............VARIABLE 1 TO 3 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. PATCHY
FOG IN THE MORNING.
* MAX TEMPERATURE...57-65.
* MIN HUMIDITY...76-88 PERCENT.
* MIXING HEIGHT...2600 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 1 TO 3 MPH...BECOMING WEST 5
MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 1 TO 3 MPH...BECOMING WEST 5 MPH
IN THE AFTERNOON.
CAZ402-050115-
INTERIOR DEL NORTE INCLUDING THE SMITH RIVER VALLEY-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY. PATCHY FOG IN THE MORNING. SLIGHT
CHANCE OF SHOWERS IN THE MORNING.
* MAX TEMPERATURE...50-60.
* MIN HUMIDITY...75-90 PERCENT.
* MIXING HEIGHT...2600 FT AGL.
* SNOW LEVEL...ABOVE 5400 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 TO 8 MPH.
RIDGES...............WEST WINDS 5 TO 8 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY.
* MIN TEMPERATURE...43-51.
* MAX HUMIDITY...87-100 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 5400 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 1 TO 3 MPH.
RIDGES...............WEST WINDS 5 TO 7 MPH IN THE
EVENING...BECOMING LIGHT WINDS 2 TO 4 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING SUNNY THEN BECOMING
PARTLY CLOUDY.
* MAX TEMPERATURE...58-68.
* MIN HUMIDITY...57-72 PERCENT.
* MIXING HEIGHT...3400 FT AGL.
* SNOW LEVEL...ABOVE 5400 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......UPSLOPE/UPVALLEY 2 TO 4 MPH...BECOMING
WEST 5 TO 6 MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 5 MPH...BECOMING WEST 5 TO 8
MPH IN THE AFTERNOON.
CAZ403-050115-
NORTHEASTERN INTERIOR HUMBOLDT AND SOUTHWESTERN SISKIYOU
INCLUDING ORLEANS-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
LATE IN THE AFTERNOON.
* MAX TEMPERATURE...55-65.
* MIN HUMIDITY...63-78 PERCENT.
* MIXING HEIGHT...3900 FT AGL.
* SNOW LEVEL...ABOVE 6000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......SOUTHWEST WINDS 5 TO 9 MPH.
RIDGES...............WEST WINDS 5 TO 9 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MIN TEMPERATURE...43-51.
* MAX HUMIDITY...82-93 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...ABOVE 6000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......SOUTHWEST WINDS 5 TO 8 MPH IN THE
EVENING...BECOMING LIGHT WINDS 2 TO 4 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 8 MPH.
TUESDAY
* SKY/WEATHER...PARTLY CLOUDY THEN BECOMING SUNNY.
* MAX TEMPERATURE...64-74.
* MIN HUMIDITY...46-56 PERCENT.
* MIXING HEIGHT...6700 FT AGL.
* SNOW LEVEL...ABOVE 6000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......UPSLOPE/UPVALLEY 2 TO 4 MPH...BECOMING
WEST 5 TO 6 MPH IN THE AFTERNOON.
RIDGES...............NORTH WINDS 5 MPH...SHIFTING TO THE WEST 5
TO 9 MPH IN THE AFTERNOON.
CAZ404-050115-
NORTHERN COASTAL HUMBOLDT-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...CLOUDY. SLIGHT CHANCE OF SHOWERS EARLY IN THE
MORNING. PATCHY FOG UNTIL LATE AFTERNOON.
* MAX TEMPERATURE...54-62.
* MIN HUMIDITY...85-95 PERCENT.
* MIXING HEIGHT...2500 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 TO 8 MPH.
RIDGES...............WEST WINDS 5 TO 8 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY. PATCHY FOG THROUGH THE NIGHT. SLIGHT
CHANCE OF SHOWERS LATE IN THE EVENING.
* MIN TEMPERATURE...45-53.
* MAX HUMIDITY...94-100 PERCENT.
* MIXING HEIGHT...400 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 1 TO 3 MPH.
RIDGES...............WEST WINDS 5 MPH IN THE EVENING...BECOMING
LIGHT WINDS 2 TO 4 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY. PATCHY FOG IN THE MORNING.
* MAX TEMPERATURE...57-65.
* MIN HUMIDITY...77-89 PERCENT.
* MIXING HEIGHT...3200 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 2 TO 4 MPH...BECOMING
NORTHWEST 5 TO 6 MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 4 MPH...BECOMING NORTHWEST 5
TO 6 MPH IN THE AFTERNOON.
CAZ405-050115-
NORTHWESTERN INTERIOR HUMBOLDT INCLUDING THE BALD HILLS-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY. PATCHY FOG IN THE MORNING. SLIGHT
CHANCE OF SHOWERS IN THE MORNING.
* MAX TEMPERATURE...51-61.
* MIN HUMIDITY...76-91 PERCENT.
* MIXING HEIGHT...2700 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 MPH.
RIDGES...............WEST WINDS 5 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY. PATCHY FOG IN THE LATE EVENING AND
OVERNIGHT.
* MIN TEMPERATURE...43-51.
* MAX HUMIDITY...86-100 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 1 TO 3 MPH.
RIDGES...............WEST WINDS 5 MPH IN THE EVENING...BECOMING
LIGHT WINDS 2 TO 4 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. PATCHY
FOG EARLY IN THE MORNING.
* MAX TEMPERATURE...57-67.
* MIN HUMIDITY...66-81 PERCENT.
* MIXING HEIGHT...3400 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 2 TO 4 MPH...BECOMING WEST 5
TO 6 MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 4 MPH...BECOMING NORTHWEST 5
TO 8 MPH IN THE AFTERNOON.
CAZ406-050115-
EASTERN INTERIOR HUMBOLDT INCLUDING WILLOW CREEK AND HOOPA-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY. PATCHY FOG IN THE MORNING. SLIGHT
CHANCE OF SHOWERS THROUGH THE DAY. SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE...53-63.
* MIN HUMIDITY...69-84 PERCENT.
* MIXING HEIGHT...3600 FT AGL.
* SNOW LEVEL...ABOVE 5800 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 8 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 8 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS EARLY IN
THE EVENING. PATCHY FOG EARLY IN THE MORNING.
* MIN TEMPERATURE...43-51.
* MAX HUMIDITY...84-99 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 5800 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 MPH IN THE
EVENING...BECOMING LIGHT WINDS 1 TO 3 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 8 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN
BECOMING SUNNY. PATCHY FOG EARLY IN THE MORNING.
* MAX TEMPERATURE...61-71.
* MIN HUMIDITY...57-72 PERCENT.
* MIXING HEIGHT...3900 FT AGL.
* SNOW LEVEL...ABOVE 5800 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......UPSLOPE/UPVALLEY 2 TO 4 MPH...BECOMING
WEST 5 TO 6 MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 5 MPH...BECOMING NORTHWEST 5
TO 8 MPH IN THE AFTERNOON.
CAZ407-050115-
SOUTHWESTERN HUMBOLDT INCLUDING THE KING RANGE AND THE EEL RIVER
VALLEY-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...CLOUDY. PATCHY FOG UNTIL LATE AFTERNOON. SLIGHT
CHANCE OF THUNDERSTORMS EARLY IN THE MORNING.
SLIGHT CHANCE OF SHOWERS THROUGH THE DAY.
* MAX TEMPERATURE...52-62.
* MIN HUMIDITY...74-89 PERCENT.
* MIXING HEIGHT...2800 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 2 TO 4 MPH...BECOMING WEST 5
MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 4 MPH...BECOMING WEST 5 TO 6
MPH IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER...CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE EVENING.
PATCHY FOG IN THE LATE EVENING AND OVERNIGHT.
* MIN TEMPERATURE...44-52.
* MAX HUMIDITY...86-100 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 MPH IN THE
EVENING...BECOMING LIGHT WINDS 1 TO 3 MPH.
RIDGES...............WEST WINDS 5 MPH IN THE EVENING...BECOMING
LIGHT WINDS 2 TO 4 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. PATCHY
FOG IN THE MORNING.
* MAX TEMPERATURE...58-68.
* MIN HUMIDITY...62-77 PERCENT.
* MIXING HEIGHT...3700 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 1 TO 3 MPH...BECOMING
NORTHWEST 5 MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 4 MPH...BECOMING NORTHWEST 5
TO 6 MPH IN THE AFTERNOON.
CAZ408-050115-
SOUTHEASTERN INTERIOR HUMBOLDT INCLUDING KNEELAND AND ALDERPOINT-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...CLOUDY. PATCHY FOG UNTIL LATE AFTERNOON. SLIGHT
CHANCE OF THUNDERSTORMS UNTIL LATE AFTERNOON.
SLIGHT CHANCE OF SHOWERS THROUGH THE DAY.
* MAX TEMPERATURE...51-61.
* MIN HUMIDITY...82-96 PERCENT.
* MIXING HEIGHT...2900 FT AGL.
* SNOW LEVEL...ABOVE 5400 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 2 TO 4 MPH...BECOMING WEST 5
TO 6 MPH IN THE AFTERNOON.
RIDGES...............WEST WINDS 5 TO 8 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
EVENING. PATCHY FOG IN THE LATE EVENING AND
OVERNIGHT.
* MIN TEMPERATURE...43-51.
* MAX HUMIDITY...87-100 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 5400 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 MPH IN THE
EVENING...BECOMING LIGHT WINDS 1 TO 3 MPH.
RIDGES...............NORTHWEST WINDS 5 MPH IN THE
EVENING...BECOMING LIGHT WINDS 2 TO 4 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. PATCHY
FOG IN THE MORNING.
* MAX TEMPERATURE...58-68.
* MIN HUMIDITY...65-80 PERCENT.
* MIXING HEIGHT...3900 FT AGL.
* SNOW LEVEL...ABOVE 5400 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 2 TO 4 MPH...BECOMING WEST 5
TO 6 MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 4 MPH...BECOMING NORTHWEST 5
TO 7 MPH IN THE AFTERNOON.
CAZ409-050115-
NORTHWESTERN TRINITY INCLUDING SALYER AND BIG BAR-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS UNTIL LATE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN THE
LATE MORNING AND AFTERNOON. CHANCE OF SHOWERS LATE
IN THE AFTERNOON.
* MAX TEMPERATURE...53-63.
* MIN HUMIDITY...68-83 PERCENT.
* MIXING HEIGHT...3500 FT AGL.
* SNOW LEVEL...ABOVE 8000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 TO 9 MPH.
RIDGES...............WEST WINDS 5 TO 9 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS EARLY IN
THE EVENING.
* MIN TEMPERATURE...42-50.
* MAX HUMIDITY...81-95 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 8000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 7 MPH IN THE
EVENING...BECOMING LIGHT WINDS 2 TO 4 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 9 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING SUNNY.
* MAX TEMPERATURE...62-72.
* MIN HUMIDITY...47-57 PERCENT.
* MIXING HEIGHT...5600 FT AGL.
* SNOW LEVEL...ABOVE 8000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......UPSLOPE/UPVALLEY 2 TO 4 MPH...BECOMING
NORTHWEST 5 TO 6 MPH IN THE AFTERNOON.
RIDGES...............NORTH WINDS 5 MPH...SHIFTING TO THE WEST 5
TO 8 MPH IN THE AFTERNOON.
CAZ410-050115-
NORTHEASTERN TRINITY INCLUDING TRINITY LAKE-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY. PATCHY FOG EARLY IN THE MORNING.
SLIGHT CHANCE OF SHOWERS IN THE LATE MORNING AND
EARLY AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS IN
THE LATE MORNING AND AFTERNOON. CHANCE OF SHOWERS
LATE IN THE AFTERNOON.
* MAX TEMPERATURE...54-64.
* MIN HUMIDITY...63-78 PERCENT.
* MIXING HEIGHT...3600 FT AGL.
* SNOW LEVEL...ABOVE 8000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 2 TO 4 MPH...BECOMING SOUTH 5
TO 7 MPH IN THE AFTERNOON.
RIDGES...............EAST WINDS 5 MPH...SHIFTING TO THE
SOUTHWEST 5 TO 8 MPH IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. CHANCE
OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS EARLY
IN THE EVENING, THEN SLIGHT CHANCE OF SHOWERS LATE
IN THE EVENING.
* MIN TEMPERATURE...40-48.
* MAX HUMIDITY...81-96 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 8000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......SOUTH WINDS 5 TO 7 MPH IN THE
EVENING...BECOMING LIGHT WINDS 2 TO 4 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 8 MPH.
TUESDAY
* SKY/WEATHER...PARTLY CLOUDY THEN BECOMING SUNNY. PATCHY FOG EARLY
IN THE MORNING.
* MAX TEMPERATURE...63-73.
* MIN HUMIDITY...43-53 PERCENT.
* MIXING HEIGHT...8600 FT AGL.
* SNOW LEVEL...ABOVE 8000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......UPSLOPE/UPVALLEY 1 TO 3 MPH...BECOMING
SOUTH 5 MPH IN THE AFTERNOON.
RIDGES...............NORTH WINDS 5 TO 8 MPH.
CAZ411-050115-
EASTERN TRINITY INCLUDING WEAVERVILLE AND HAYFORK-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY. PATCHY FOG IN THE MORNING. SLIGHT
CHANCE OF SHOWERS IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS THROUGH THE DAY. CHANCE OF SHOWERS IN
THE AFTERNOON.
* MAX TEMPERATURE...55-65.
* MIN HUMIDITY...63-78 PERCENT.
* MIXING HEIGHT...3300 FT AGL.
* SNOW LEVEL...ABOVE 8000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 2 TO 4 MPH...BECOMING
SOUTHWEST 5 TO 7 MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 5 MPH...BECOMING WEST 5 TO 8
MPH IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY. CHANCE OF SHOWERS EARLY IN THE
EVENING, THEN SLIGHT CHANCE OF SHOWERS LATE IN THE
EVENING.
* MIN TEMPERATURE...43-51.
* MAX HUMIDITY...84-99 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 8000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 TO 7 MPH IN THE
EVENING...BECOMING LIGHT WINDS 2 TO 4 MPH.
RIDGES...............WEST WINDS 5 TO 8 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN
BECOMING SUNNY. PATCHY FOG EARLY IN THE MORNING.
* MAX TEMPERATURE...65-75.
* MIN HUMIDITY...42-52 PERCENT.
* MIXING HEIGHT...4400 FT AGL.
* SNOW LEVEL...ABOVE 8000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......UPSLOPE/UPVALLEY 1 TO 3 MPH.
RIDGES...............VARIABLE 2 TO 4 MPH...BECOMING NORTHWEST 5
MPH IN THE AFTERNOON.
CAZ412-050115-
SOUTHERN TRINITY INCLUDING RUTH LAKE AND THE YOLLA BOLLYS-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY. PATCHY FOG UNTIL LATE AFTERNOON.
CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS THROUGH THE DAY.
* MAX TEMPERATURE...49-59.
* MIN HUMIDITY...68-83 PERCENT.
* MIXING HEIGHT...2900 FT AGL.
* SNOW LEVEL...ABOVE 5400 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 TO 8 MPH.
RIDGES...............WEST WINDS 5 TO 8 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY. CHANCE OF SHOWERS IN THE EVENING.
PATCHY FOG IN THE LATE EVENING AND OVERNIGHT.
* MIN TEMPERATURE...41-49.
* MAX HUMIDITY...89-100 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 5400 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 MPH IN THE EVENING...BECOMING
LIGHT WINDS 1 TO 3 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 8 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN
BECOMING SUNNY. PATCHY FOG IN THE MORNING.
* MAX TEMPERATURE...59-69.
* MIN HUMIDITY...49-64 PERCENT.
* MIXING HEIGHT...4300 FT AGL.
* SNOW LEVEL...ABOVE 5400 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 1 TO 3 MPH...BECOMING WEST 5
MPH IN THE AFTERNOON.
RIDGES...............NORTH WINDS 5 MPH...SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
CAZ413-050115-
COASTAL MENDOCINO-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY. PATCHY FOG IN THE MORNING. CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE DAY.
* MAX TEMPERATURE...54-62.
* MIN HUMIDITY...76-91 PERCENT.
* MIXING HEIGHT...2100 FT AGL.
* SNOW LEVEL...ABOVE 2200 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 2 TO 4 MPH...BECOMING WEST 5
MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 4 MPH...BECOMING WEST 5 MPH
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER...CLOUDY. CHANCE OF SHOWERS IN THE EVENING. SLIGHT
CHANCE OF SHOWERS AFTER MIDNIGHT. PATCHY FOG IN THE
LATE EVENING AND OVERNIGHT.
* MIN TEMPERATURE...45-53.
* MAX HUMIDITY...90-100 PERCENT.
* MIXING HEIGHT...400 FT AGL.
* SNOW LEVEL...ABOVE 2200 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 1 TO 3 MPH.
RIDGES...............VARIABLE 1 TO 3 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. PATCHY
FOG IN THE MORNING.
* MAX TEMPERATURE...58-66.
* MIN HUMIDITY...67-82 PERCENT.
* MIXING HEIGHT...2700 FT AGL.
* SNOW LEVEL...ABOVE 2200 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 1 TO 3 MPH...BECOMING
NORTHWEST 5 MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 1 TO 3 MPH...BECOMING WEST 5 MPH
IN THE AFTERNOON.
CAZ414-050115-
NORTHERN INTERIOR MENDOCINO INCLUDING LEGGETT AND WILLITS-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...CLOUDY. PATCHY FOG UNTIL LATE AFTERNOON. CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE DAY.
* MAX TEMPERATURE...51-61.
* MIN HUMIDITY...76-89 PERCENT.
* MIXING HEIGHT...2700 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 2 TO 4 MPH...BECOMING WEST 5
MPH IN THE AFTERNOON.
RIDGES...............WEST WINDS 5 TO 8 MPH.
TONIGHT
* SKY/WEATHER...CLOUDY. CHANCE OF SHOWERS IN THE EVENING. SLIGHT
CHANCE OF SHOWERS AFTER MIDNIGHT. PATCHY FOG IN THE
LATE EVENING AND OVERNIGHT.
* MIN TEMPERATURE...42-50.
* MAX HUMIDITY...87-100 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 MPH IN THE EVENING...BECOMING
LIGHT WINDS 1 TO 3 MPH.
RIDGES...............WEST WINDS 5 MPH IN THE EVENING...BECOMING
LIGHT WINDS 2 TO 4 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. PATCHY
FOG IN THE MORNING.
* MAX TEMPERATURE...59-69.
* MIN HUMIDITY...62-77 PERCENT.
* MIXING HEIGHT...3800 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 1 TO 3 MPH...BECOMING WEST 5
MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 4 MPH...BECOMING WEST 5 TO 6
MPH IN THE AFTERNOON.
CAZ415-050115-
NORTHEASTERN INTERIOR MENDOCINO INCLUDING COVELO-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...PATCHY FOG UNTIL LATE AFTERNOON. SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS.
* MAX TEMPERATURE...49-59.
* MIN HUMIDITY...75-90 PERCENT.
* MIXING HEIGHT...3300 FT AGL.
* SNOW LEVEL...ABOVE 7100 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 2 TO 4 MPH...BECOMING WEST 5
MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 4 MPH...BECOMING WEST 5 TO 7
MPH IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER...CLOUDY. CHANCE OF SHOWERS IN THE EVENING, THEN
SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. PATCHY FOG
AFTER MIDNIGHT.
* MIN TEMPERATURE...41-49.
* MAX HUMIDITY...88-100 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 7100 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 MPH IN THE EVENING...BECOMING
LIGHT WINDS 2 TO 4 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 8 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. PATCHY
FOG IN THE MORNING.
* MAX TEMPERATURE...59-69.
* MIN HUMIDITY...55-70 PERCENT.
* MIXING HEIGHT...4200 FT AGL.
* SNOW LEVEL...ABOVE 7100 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......UPSLOPE/UPVALLEY 1 TO 3 MPH...BECOMING
WEST 5 MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 4 MPH...BECOMING WEST 5 TO 6
MPH IN THE AFTERNOON.
CAZ416-050115-
SOUTHEASTERN INTERIOR MENDOCINO INCLUDING UKIAH AND POTTER VALLEY-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...PATCHY FOG UNTIL LATE AFTERNOON. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY.
* MAX TEMPERATURE...52-62.
* MIN HUMIDITY...68-83 PERCENT.
* MIXING HEIGHT...3100 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 2 TO 4 MPH...BECOMING WEST 5
TO 7 MPH IN THE AFTERNOON.
RIDGES...............WEST WINDS 5 TO 8 MPH.
TONIGHT
* SKY/WEATHER...CLOUDY. CHANCE OF SHOWERS UNTIL EARLY MORNING.
PATCHY FOG AFTER MIDNIGHT.
* MIN TEMPERATURE...44-52.
* MAX HUMIDITY...85-100 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 8 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 9 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. PATCHY
FOG IN THE MORNING.
* MAX TEMPERATURE...60-70.
* MIN HUMIDITY...55-70 PERCENT.
* MIXING HEIGHT...4100 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 MPH.
RIDGES...............WEST WINDS 5 TO 8 MPH.
CAZ417-050115-
SOUTHWESTERN INTERIOR MENDOCINO INCLUDING BOONVILLE-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...CLOUDY. PATCHY FOG IN THE MORNING. CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE DAY.
* MAX TEMPERATURE...53-62.
* MIN HUMIDITY...73-87 PERCENT.
* MIXING HEIGHT...2500 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 2 TO 4 MPH...BECOMING WEST 5
MPH IN THE AFTERNOON.
RIDGES...............WEST WINDS 5 TO 8 MPH.
TONIGHT
* SKY/WEATHER...CLOUDY. CHANCE OF SHOWERS UNTIL EARLY MORNING.
PATCHY FOG AFTER MIDNIGHT.
* MIN TEMPERATURE...45-53.
* MAX HUMIDITY...85-100 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 MPH IN THE
EVENING...BECOMING LIGHT WINDS 2 TO 4 MPH.
RIDGES...............NORTHWEST WINDS 5 MPH IN THE
EVENING...BECOMING LIGHT WINDS 2 TO 4 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY. PATCHY FOG EARLY IN THE MORNING.
* MAX TEMPERATURE...59-67.
* MIN HUMIDITY...63-78 PERCENT.
* MIXING HEIGHT...3500 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......LIGHT WINDS 1 TO 3 MPH...BECOMING WEST 5
MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 4 MPH...BECOMING WEST 5 MPH
IN THE AFTERNOON.
CAZ418-050115-
NORTHERN LAKE INCLUDING GRAVELLY VALLEY-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...PATCHY FOG IN THE MORNING. CHANCE OF SHOWERS EARLY
IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS
THROUGH THE DAY. SHOWERS LIKELY IN THE LATE MORNING
AND AFTERNOON.
* MAX TEMPERATURE...49-59.
* MIN HUMIDITY...72-87 PERCENT.
* MIXING HEIGHT...2900 FT AGL.
* SNOW LEVEL...ABOVE 7100 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 TO 8 MPH.
RIDGES...............VARIABLE 2 TO 5 MPH...BECOMING WEST 5 TO 8
MPH IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER...CLOUDY. SHOWERS LIKELY EARLY IN THE EVENING. SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. CHANCE OF
SHOWERS IN THE LATE EVENING AND EARLY MORNING.
PATCHY FOG EARLY IN THE MORNING.
* MIN TEMPERATURE...40-48.
* MAX HUMIDITY...85-100 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 7100 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 TO 7 MPH IN THE
EVENING...BECOMING LIGHT WINDS 2 TO 5 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 9 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. PATCHY
FOG EARLY IN THE MORNING.
* MAX TEMPERATURE...58-68.
* MIN HUMIDITY...58-73 PERCENT.
* MIXING HEIGHT...3800 FT AGL.
* SNOW LEVEL...ABOVE 7100 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 TO 8 MPH.
RIDGES...............WEST WINDS 5 TO 8 MPH.
CAZ419-050115-
EASTERN LAKE INCLUDING CLEARLAKE AND MIDDLETOWN-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY. PATCHY FOG EARLY IN THE MORNING.
CHANCE OF SHOWERS UNTIL LATE AFTERNOON. SLIGHT
CHANCE OF THUNDERSTORMS IN THE LATE MORNING AND
AFTERNOON. SHOWERS LIKELY LATE IN THE AFTERNOON.
* MAX TEMPERATURE...55-63.
* MIN HUMIDITY...68-82 PERCENT.
* MIXING HEIGHT...3400 FT AGL.
* SNOW LEVEL...ABOVE 5000 FEET.
* 20-FOOT WINDS...
TONIGHT
* SKY/WEATHER...SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING, THEN CHANCE OF SHOWERS AFTER
MIDNIGHT. SLIGHT CHANCE OF SHOWERS EARLY IN THE
MORNING. PATCHY FOG EARLY IN THE MORNING.
* MIN TEMPERATURE...44-52.
* MAX HUMIDITY...89-100 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 5000 FEET.
* 20-FOOT WINDS...
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. PATCHY
FOG IN THE MORNING.
* MAX TEMPERATURE...63-71.
* MIN HUMIDITY...55-65 PERCENT.
* MIXING HEIGHT...4100 FT AGL.
* SNOW LEVEL...ABOVE 5000 FEET.
* 20-FOOT WINDS...
CAZ420-050115-
SOUTHERN LAKE INCLUDING COBB AND KONOCTI-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...CLOUDY. CHANCE OF SHOWERS UNTIL LATE AFTERNOON.
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
SHOWERS LIKELY LATE IN THE AFTERNOON.
* MAX TEMPERATURE...51-60.
* MIN HUMIDITY...71-86 PERCENT.
* MIXING HEIGHT...2700 FT AGL.
* SNOW LEVEL...ABOVE 5000 FEET.
* 20-FOOT WINDS...
RIDGES...............WEST WINDS 5 TO 8 MPH.
TONIGHT
* SKY/WEATHER...SHOWERS LIKELY UNTIL EARLY MORNING. SLIGHT CHANCE
OF THUNDERSTORMS LATE IN THE EVENING. SLIGHT CHANCE
OF SHOWERS EARLY IN THE MORNING.
* MIN TEMPERATURE...43-51.
* MAX HUMIDITY...82-97 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 5000 FEET.
* 20-FOOT WINDS...
RIDGES...............WEST WINDS 5 TO 9 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE...58-68.
* MIN HUMIDITY...56-71 PERCENT.
* MIXING HEIGHT...3600 FT AGL.
* SNOW LEVEL...ABOVE 5000 FEET.
* 20-FOOT WINDS...
RIDGES...............WEST WINDS 5 TO 8 MPH.
CAZ421-050115-
WESTERN LAKE INCLUDING LAKEPORT-
1203 AM PDT MON MAY 4 2026
TODAY
* SKY/WEATHER...CLOUDY. PATCHY FOG UNTIL LATE AFTERNOON. CHANCE OF
SHOWERS IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS IN THE LATE MORNING AND AFTERNOON.
SHOWERS LIKELY IN THE AFTERNOON.
* MAX TEMPERATURE...52-60.
* MIN HUMIDITY...72-82 PERCENT.
* MIXING HEIGHT...2600 FT AGL.
* SNOW LEVEL...ABOVE 5000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 TO 9 MPH.
RIDGES...............WEST WINDS 5 TO 9 MPH.
TONIGHT
* SKY/WEATHER...CLOUDY. SHOWERS LIKELY IN THE EVENING, THEN CHANCE
OF SHOWERS AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS
EARLY IN THE MORNING. PATCHY FOG EARLY IN THE
MORNING.
* MIN TEMPERATURE...42-50.
* MAX HUMIDITY...84-99 PERCENT.
* MIXING HEIGHT...200 FT AGL.
* SNOW LEVEL...ABOVE 5000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 9 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 9 MPH.
TUESDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. PATCHY
FOG UNTIL LATE AFTERNOON.
* MAX TEMPERATURE...61-69.
* MIN HUMIDITY...56-69 PERCENT.
* MIXING HEIGHT...3700 FT AGL.
* SNOW LEVEL...ABOVE 5000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 TO 8 MPH.
RIDGES...............WEST WINDS 5 TO 8 MPH.
EXTENDED FORECAST FOR DAYS 3 THROUGH 5
..NORTHWEST CALIFORNIA COAST
WEDNESDAY
MOSTLY CLOUDY. PATCHY FOG. LOWS 45 TO 53. HIGHS
59 TO 67. WINDS GENERALLY LESS THAN 5 MPH.
THURSDAY
MOSTLY CLOUDY. PATCHY FOG. LOWS 45 TO 53. HIGHS 59 TO
67. WINDS GENERALLY LESS THAN 5 MPH.
FRIDAY
MOSTLY CLOUDY. PATCHY FOG IN THE EVENING. AREAS OF FOG
AFTER MIDNIGHT, THEN PATCHY FOG IN THE MORNING. LOWS 44 TO 52.
HIGHS 60 TO 68. NORTHWEST WINDS 5 MPH.
SATURDAY
MOSTLY CLEAR. PATCHY FOG. LOWS 44 TO 52. HIGHS 64 TO
73.
SUNDAY
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS 47 TO 55.
HIGHS 67 TO 76.
..NORTHWEST CALIFORNIA INTERIOR
WEDNESDAY
PARTLY CLOUDY. PATCHY FOG. LOWS 45 TO 53. HIGHS
71 TO 84. WINDS GENERALLY LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. PATCHY FOG. LOWS 47 TO 55. HIGHS 73 TO
85. WINDS GENERALLY LESS THAN 5 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 45 TO 53. HIGHS 72 TO 84. NORTHWEST
WINDS 5 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 46 TO 56. HIGHS 80 TO 90.
SUNDAY
MOSTLY CLEAR. LOWS 51 TO 61. HIGHS 85 TO 95.
6 TO 10 DAY OUTLOOK
SATURDAY MAY 9 THROUGH WEDNESDAY MAY 13, 2026...
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION.
VISIT US AT WWW.WEATHER.GOV/EUREKA
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