583
FNUS56 KEKA 200740
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE EUREKA CA
1240 AM PDT FRI MAR 20 2026
DISCUSSION.
A DOMINANT BLOCKING RIDGING PATTERN PROMOTING
UNSEASONABLY WARM AND DRY CONDITIONS PERSIST THROUGH TODAY,
FOLLOWED BY A SLOWLY GRADUAL WEAKENING THIS WEEKEND AND INTO EARLY
NEXT WEEK MODERATING THE HEAT. EXCEPT FOR SOME ENHANCED NORTH
WINDS RIGHT ALONG SHORE AND CHANNELED ALONG THE EEL RIVER VALLEY
THIS AFTERNOON, DAYTIME WINDS WILL BE MOSTLY GENTLE AND TERRAIN
DRIVEN. AFTERNOON HUMIDITY WILL CONTINUE TO BE LOW TODAY WITH
VALUES IN THE MID TEENS TO UPPER 20S PERCENT ACROSS THE INTERIOR,
WITH POOR TO MODERATE OVERNIGHT RECOVERIES OVER THE RIDGES.
INCREASING WINDS ARE EXPECTED ON SATURDAY WITH MODERATE BREEZES
TO LOCALLY GUSTY W TO NW WINDS, ESPECIALLY OVER THE COASTAL
HEADLANDS, EXPOSED RIDGES AND THROUGH THE CHANNELED TERRAIN. THIS
UPTICK IN W-NW BREEZES WILL BRING A PUSH OF MARINE MOISTURE ON
SATURDAY. COOLING EXPECTED THIS WEEKEND WITH A RETURN OF RAIN BY
MID OF NEXT WEEK.
CAZ201-210145-
NORTH COAST-
1240 AM PDT FRI MAR 20 2026
TODAY
* SKY/WEATHER...PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MAX TEMPERATURE...69-79.
* MIN HUMIDITY...31-41 PERCENT.
* MIXING HEIGHT...2200 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 10 MPH.
RIDGES...............NORTHWEST WINDS 6 TO 11 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY. PATCHY FOG IN THE LATE EVENING AND
OVERNIGHT.
* MIN TEMPERATURE...43-51.
* MAX HUMIDITY...84-99 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 9 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 10 MPH.
SATURDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. SLIGHT
CHANCE OF DRIZZLE EARLY IN THE MORNING. PATCHY FOG
IN THE MORNING.
* MAX TEMPERATURE...56-66.
* MIN HUMIDITY...52-67 PERCENT.
* MIXING HEIGHT...3600 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 6 TO 11 MPH.
RIDGES...............NORTHWEST WINDS 6 TO 11 MPH.
CAZ202-210145-
COASTAL MENDOCINO-
1240 AM PDT FRI MAR 20 2026
TODAY
* SKY/WEATHER...SUNNY.
* MAX TEMPERATURE...74-84.
* MIN HUMIDITY...24-34 PERCENT.
* MIXING HEIGHT...1400 FT AGL.
* SNOW LEVEL...ABOVE 2200 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 8 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 8 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY.
* MIN TEMPERATURE...44-52.
* MAX HUMIDITY...77-92 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...ABOVE 2200 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 9 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 10 MPH.
SATURDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN
BECOMING SUNNY.
* MAX TEMPERATURE...60-70.
* MIN HUMIDITY...52-67 PERCENT.
* MIXING HEIGHT...2500 FT AGL.
* SNOW LEVEL...ABOVE 2200 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 6 TO 11 MPH.
RIDGES...............NORTHWEST WINDS 6 TO 11 MPH.
CAZ203-204-210145-
UPPER SMITH-LOWER MIDDLE KLAMATH-
1240 AM PDT FRI MAR 20 2026
TODAY
* SKY/WEATHER...PARTLY CLOUDY.
* MAX TEMPERATURE...69-79.
* MIN HUMIDITY...30-40 PERCENT.
* MIXING HEIGHT...4300 FT AGL.
* SNOW LEVEL...ABOVE 6000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......UPSLOPE/UPVALLEY 2 TO 5 MPH...BECOMING
SOUTHWEST 5 TO 8 MPH IN THE AFTERNOON.
RIDGES...............NORTH WINDS 5 MPH...SHIFTING TO THE
NORTHWEST 5 TO 7 MPH IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER...PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. PATCHY
FOG AFTER MIDNIGHT. SLIGHT CHANCE OF DRIZZLE EARLY
IN THE MORNING.
* MIN TEMPERATURE...45-53.
* MAX HUMIDITY...79-94 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...ABOVE 6000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......SOUTHWEST WINDS 5 TO 8 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 7 MPH DECREASING TO 5
MPH AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN
BECOMING SUNNY. PATCHY FOG IN THE MORNING. SLIGHT
CHANCE OF DRIZZLE IN THE MORNING.
* MAX TEMPERATURE...55-65.
* MIN HUMIDITY...47-57 PERCENT.
* MIXING HEIGHT...6300 FT AGL.
* SNOW LEVEL...ABOVE 6000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 TO 9 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 10 MPH.
CAZ211-212-210145-
HOOPA-VAN DUZEN/MAD RIVER-
1240 AM PDT FRI MAR 20 2026
TODAY
* SKY/WEATHER...PARTLY CLOUDY THEN BECOMING SUNNY THEN BECOMING
PARTLY CLOUDY.
* MAX TEMPERATURE...72-82.
* MIN HUMIDITY...19-27 PERCENT.
* MIXING HEIGHT...3700 FT AGL.
* SNOW LEVEL...ABOVE 5800 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 9 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 9 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY.
* MIN TEMPERATURE...44-52.
* MAX HUMIDITY...78-93 PERCENT.
* MIXING HEIGHT...0 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.
SATURDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE...57-67.
* MIN HUMIDITY...39-49 PERCENT.
* MIXING HEIGHT...4800 FT AGL.
* SNOW LEVEL...ABOVE 5800 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 6 TO 11 MPH.
RIDGES...............NORTHWEST WINDS 6 TO 11 MPH.
CAZ283-210145-
TRINITY-
1240 AM PDT FRI MAR 20 2026
TODAY
* SKY/WEATHER...PARTLY CLOUDY THEN BECOMING SUNNY THEN BECOMING
PARTLY CLOUDY.
* MAX TEMPERATURE...73-83.
* MIN HUMIDITY...15-23 PERCENT.
* MIXING HEIGHT...5100 FT AGL.
* SNOW LEVEL...ABOVE 8000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......UPSLOPE/UPVALLEY 2 TO 4 MPH...BECOMING
WEST 5 TO 7 MPH IN THE AFTERNOON.
RIDGES...............WEST WINDS 5 TO 8 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLOUDY.
* MIN TEMPERATURE...42-52.
* MAX HUMIDITY...65-80 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...ABOVE 8000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 5 TO 8 MPH.
RIDGES...............WEST WINDS 5 TO 8 MPH.
SATURDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN
BECOMING SUNNY.
* MAX TEMPERATURE...60-70.
* MIN HUMIDITY...34-44 PERCENT.
* MIXING HEIGHT...7800 FT AGL.
* SNOW LEVEL...ABOVE 8000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......WEST WINDS 6 TO 11 MPH.
RIDGES...............WEST WINDS 6 TO 11 MPH.
CAZ276-210145-
INTERIOR MENDOCINO-
1240 AM PDT FRI MAR 20 2026
TODAY
* SKY/WEATHER...SUNNY.
* MAX TEMPERATURE...81-91.
* MIN HUMIDITY...19-27 PERCENT.
* MIXING HEIGHT...3300 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTH WINDS 5 MPH...SHIFTING TO THE
NORTHWEST 5 TO 8 MPH IN THE AFTERNOON.
RIDGES...............NORTH WINDS 5 TO 8 MPH.
TONIGHT
* SKY/WEATHER...PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MIN TEMPERATURE...45-55.
* MAX HUMIDITY...71-86 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 9 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 9 MPH.
SATURDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE...67-77.
* MIN HUMIDITY...40-50 PERCENT.
* MIXING HEIGHT...4500 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 6 TO 11 MPH.
RIDGES...............NORTHWEST WINDS 6 TO 11 MPH.
CAZ277-210145-
W MENDOCINO NF/E MENDOCINO UNIT-
1240 AM PDT FRI MAR 20 2026
TODAY
* SKY/WEATHER...SUNNY.
* MAX TEMPERATURE...78-88.
* MIN HUMIDITY...14-22 PERCENT.
* MIXING HEIGHT...5000 FT AGL.
* SNOW LEVEL...ABOVE 7100 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTH WINDS 5 MPH...SHIFTING TO THE WEST 5
TO 8 MPH IN THE AFTERNOON.
RIDGES...............SOUTHWEST WINDS 5 TO 8 MPH.
TONIGHT
* SKY/WEATHER...PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MIN TEMPERATURE...47-57.
* MAX HUMIDITY...54-69 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...ABOVE 7100 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 8 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 8 MPH.
SATURDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE...65-75.
* MIN HUMIDITY...30-40 PERCENT.
* MIXING HEIGHT...5800 FT AGL.
* SNOW LEVEL...ABOVE 7100 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 10 MPH.
RIDGES...............NORTHWEST WINDS 5 TO 10 MPH.
CAZ264-210145-
LAKE COUNTY PORTION OF LAKE/NAPA/SONOMA RU-
1240 AM PDT FRI MAR 20 2026
TODAY
* SKY/WEATHER...SUNNY.
* MAX TEMPERATURE...85-95.
* MIN HUMIDITY...16-24 PERCENT.
* MIXING HEIGHT...4100 FT AGL.
* SNOW LEVEL...ABOVE 4700 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 8 MPH.
RIDGES...............WEST WINDS 5 TO 8 MPH.
TONIGHT
* SKY/WEATHER...PARTLY CLOUDY.
* MIN TEMPERATURE...49-59.
* MAX HUMIDITY...53-63 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...ABOVE 4700 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 9 MPH.
RIDGES...............NORTHWEST WINDS 6 TO 11 MPH.
SATURDAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE...74-84.
* MIN HUMIDITY...28-38 PERCENT.
* MIXING HEIGHT...4600 FT AGL.
* SNOW LEVEL...ABOVE 4700 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 7 TO 12 MPH.
RIDGES...............NORTHWEST WINDS 7 TO 12 MPH.
EXTENDED FORECAST FOR DAYS 3 THROUGH 5
..NORTHWEST CALIFORNIA COAST
SUNDAY
PARTLY CLOUDY. LOWS 38 TO 46. HIGHS 59 TO 69. NORTH
WINDS 5 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 42 TO 50. HIGHS 61 TO 72. NORTH
WINDS 5 MPH.
TUESDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN. LOWS 45 TO 53.
HIGHS 63 TO 71. WINDS GENERALLY LESS THAN 5 MPH.
WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN. PATCHY FOG AFTER
MIDNIGHT. LOWS 43 TO 51. HIGHS 55 TO 63.
THURSDAY
PARTLY CLOUDY. LOWS 40 TO 48. HIGHS 61 TO 69.
..NORTHWEST CALIFORNIA INTERIOR
SUNDAY
MOSTLY CLEAR. LOWS 40 TO 50. HIGHS 73 TO 86. NORTHWEST
WINDS 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 43 TO 53. HIGHS 73 TO 86. NORTHWEST
WINDS 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 45 TO 55. HIGHS 73 TO 86. WEST
WINDS 5 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. LOWS 43 TO
53. HIGHS 67 TO 77.
THURSDAY
PARTLY CLOUDY. LOWS 40 TO 50. HIGHS 72 TO 82.
6 TO 10 DAY OUTLOOK
WEDNESDAY MARCH 25 THROUGH SUNDAY MARCH 29, 2026...
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION.
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