693
FNUS56 KEKA 180902
FWFEKA
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA
NATIONAL WEATHER SERVICE EUREKA CA
102 AM PST SUN JAN 18 2026
DISCUSSION..
HIGH PRESSURE CONTINUES TO IMPACT NORTHWEST
CALIFORNIA WITH WARM AND DRY CONDITIONS FOR THE SEASON. HIGH
CLOUDS WILL CONTINUE TO STREAM OVER THE AREA WITH SHALLOW COASTAL
STRATUS PENETRATING INLAND. LIGHT EAST WINDS EARLY THIS MORNING
MAY HELP LIFT THE SHALLOW CLOUD LAYER. LOW CLOUDS WILL IMPACT INTERIOR
VALLEYS EACH MORNING INTO THIS WEEK, LIMITING HEATING FOR THESE
VALLEYS. HIGHER TERRAIN WILL CONTINUE TO TO BE WARMER AND DRIER
THAN LOWER ELEVATION AREAS. THERE IS VERY LITTLE CHANCE FOR ANY
WETTING RAIN UNTIL THE END OF THIS COMING WEEK OR INTO THE
WEEKEND.
CAZ201-190230-
NORTH COAST-
102 AM PST SUN JAN 18 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. PATCHY
DENSE FOG IN THE MORNING.
* MAX TEMPERATURE...57-65.
* MIN HUMIDITY...39-49 PERCENT.
* MIXING HEIGHT...1700 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......UPSLOPE/UPVALLEY 2 TO 4 MPH...BECOMING
NORTHWEST 5 MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 2 TO 4 MPH...BECOMING NORTH 5 MPH
IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER...PARTLY CLOUDY. PATCHY DENSE FOG IN THE EVENING.
PATCHY DENSE FOG EARLY IN THE MORNING.
* MIN TEMPERATURE...39-48.
* MAX HUMIDITY...73-88 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTH WINDS 5 MPH.
RIDGES...............NORTH WINDS 5 MPH.
MARTIN LUTHER KING JR DAY
* SKY/WEATHER...PARTLY CLOUDY THEN BECOMING SUNNY.
* MAX TEMPERATURE...56-65.
* MIN HUMIDITY...40-50 PERCENT.
* MIXING HEIGHT...2400 FT AGL.
* SNOW LEVEL...ABOVE 4300 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTH WINDS 5 MPH IN THE
MORNING...BECOMING UPSLOPE/UPVALLEY 2 TO 4
MPH.
RIDGES...............NORTHEAST WINDS 5 TO 7 MPH IN THE
MORNING...BECOMING VARIABLE 2 TO 4 MPH.
CAZ202-190230-
COASTAL MENDOCINO-
102 AM PST SUN JAN 18 2026
TODAY
* SKY/WEATHER...PARTLY CLOUDY.
* MAX TEMPERATURE...59-67.
* MIN HUMIDITY...59-74 PERCENT.
* MIXING HEIGHT...1200 FT AGL.
* SNOW LEVEL...ABOVE 2200 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......UPSLOPE/UPVALLEY 2 TO 4 MPH...BECOMING
NORTHWEST 5 MPH IN THE AFTERNOON.
RIDGES...............VARIABLE 1 TO 3 MPH.
TONIGHT
* SKY/WEATHER...PARTLY CLOUDY. PATCHY FOG.
* MIN TEMPERATURE...41-50.
* MAX HUMIDITY...81-96 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...ABOVE 2200 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTH WINDS 5 MPH.
RIDGES...............NORTH WINDS 5 MPH.
MARTIN LUTHER KING JR DAY
* SKY/WEATHER...PARTLY CLOUDY THEN BECOMING SUNNY. PATCHY DENSE FOG
EARLY IN THE MORNING.
* MAX TEMPERATURE...59-67.
* MIN HUMIDITY...56-71 PERCENT.
* MIXING HEIGHT...1500 FT AGL.
* SNOW LEVEL...ABOVE 2200 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHWEST WINDS 5 MPH IN THE
MORNING...BECOMING UPSLOPE/UPVALLEY 2 TO 4
MPH.
RIDGES...............NORTHEAST WINDS 5 MPH IN THE
MORNING...BECOMING VARIABLE 1 TO 3 MPH.
CAZ203-204-190230-
UPPER SMITH-LOWER MIDDLE KLAMATH-
102 AM PST SUN JAN 18 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN
BECOMING SUNNY.
* MAX TEMPERATURE...53-63.
* MIN HUMIDITY...21-31 PERCENT.
* MIXING HEIGHT...2400 FT AGL.
* SNOW LEVEL...ABOVE 6000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHEAST WINDS 5 MPH.
RIDGES...............NORTHEAST WINDS 5 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLEAR.
* MIN TEMPERATURE...39-48.
* MAX HUMIDITY...51-61 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...ABOVE 6000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHEAST WINDS 5 TO 8 MPH.
RIDGES...............NORTHEAST WINDS 5 TO 9 MPH.
MARTIN LUTHER KING JR DAY
* SKY/WEATHER...SUNNY.
* MAX TEMPERATURE...54-64.
* MIN HUMIDITY...22-32 PERCENT.
* MIXING HEIGHT...3300 FT AGL.
* SNOW LEVEL...ABOVE 6000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHEAST WINDS 5 TO 8 MPH.
RIDGES...............NORTHEAST WINDS 5 TO 8 MPH.
CAZ211-212-190230-
HOOPA-VAN DUZEN/MAD RIVER-
102 AM PST SUN JAN 18 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN
BECOMING SUNNY.
* MAX TEMPERATURE...57-67.
* MIN HUMIDITY...30-40 PERCENT.
* MIXING HEIGHT...2000 FT AGL.
* SNOW LEVEL...ABOVE 5800 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......UPSLOPE/UPVALLEY 1 TO 3 MPH.
RIDGES...............VARIABLE 1 TO 3 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLEAR.
* MIN TEMPERATURE...38-48.
* MAX HUMIDITY...59-74 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...ABOVE 5800 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......DOWNSLOPE/DOWNVALLEY 2 TO 4 MPH...BECOMING
NORTHEAST 5 MPH AFTER MIDNIGHT.
RIDGES...............NORTHEAST WINDS 5 TO 8 MPH.
MARTIN LUTHER KING JR DAY
* SKY/WEATHER...SUNNY.
* MAX TEMPERATURE...58-68.
* MIN HUMIDITY...32-42 PERCENT.
* MIXING HEIGHT...3000 FT AGL.
* SNOW LEVEL...ABOVE 5800 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHEAST WINDS 5 MPH IN THE
MORNING...BECOMING UPSLOPE/UPVALLEY 2 TO 4
MPH.
RIDGES...............EAST WINDS 5 TO 9 MPH.
CAZ283-190230-
TRINITY-
102 AM PST SUN JAN 18 2026
TODAY
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN
BECOMING SUNNY.
* MAX TEMPERATURE...54-64.
* MIN HUMIDITY...21-31 PERCENT.
* MIXING HEIGHT...2000 FT AGL.
* SNOW LEVEL...6700 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......UPSLOPE/UPVALLEY 1 TO 3 MPH.
RIDGES...............WEST WINDS 5 MPH...SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER...MOSTLY CLEAR.
* MIN TEMPERATURE...37-45.
* MAX HUMIDITY...48-58 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...6800 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......DOWNSLOPE/DOWNVALLEY 2 TO 4 MPH...BECOMING
NORTHEAST 5 MPH AFTER MIDNIGHT.
RIDGES...............NORTHEAST WINDS 5 TO 8 MPH.
MARTIN LUTHER KING JR DAY
* SKY/WEATHER...SUNNY.
* MAX TEMPERATURE...54-64.
* MIN HUMIDITY...27-37 PERCENT.
* MIXING HEIGHT...3300 FT AGL.
* SNOW LEVEL...6800 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......EAST WINDS 5 TO 8 MPH.
RIDGES...............EAST WINDS 5 TO 8 MPH.
CAZ276-190230-
INTERIOR MENDOCINO-
102 AM PST SUN JAN 18 2026
TODAY
* SKY/WEATHER...PARTLY CLOUDY THEN BECOMING SUNNY.
* MAX TEMPERATURE...62-70.
* MIN HUMIDITY...44-54 PERCENT.
* MIXING HEIGHT...1600 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHEAST WINDS 5 MPH IN THE
MORNING...BECOMING UPSLOPE/UPVALLEY 2 TO 4
MPH.
RIDGES...............EAST WINDS 5 MPH IN THE MORNING...BECOMING
VARIABLE 2 TO 4 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLEAR.
* MIN TEMPERATURE...40-50.
* MAX HUMIDITY...71-86 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTH WINDS 5 MPH.
RIDGES...............NORTH WINDS 5 MPH.
MARTIN LUTHER KING JR DAY
* SKY/WEATHER...SUNNY.
* MAX TEMPERATURE...62-70.
* MIN HUMIDITY...38-48 PERCENT.
* MIXING HEIGHT...2300 FT AGL.
* SNOW LEVEL...ABOVE 4000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTH WINDS 5 MPH IN THE
MORNING...BECOMING UPSLOPE/UPVALLEY 1 TO 3
MPH.
RIDGES...............NORTHEAST WINDS 5 MPH IN THE
MORNING...BECOMING VARIABLE 1 TO 3 MPH.
CAZ277-190230-
W MENDOCINO NF/E MENDOCINO UNIT-
102 AM PST SUN JAN 18 2026
TODAY
* SKY/WEATHER...PARTLY CLOUDY THEN BECOMING SUNNY.
* MAX TEMPERATURE...58-68.
* MIN HUMIDITY...29-39 PERCENT.
* MIXING HEIGHT...2100 FT AGL.
* SNOW LEVEL...6900 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.
TONIGHT
* SKY/WEATHER...MOSTLY CLEAR.
* MIN TEMPERATURE...40-50.
* MAX HUMIDITY...53-63 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...7000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTHEAST WINDS 5 MPH.
RIDGES...............NORTHEAST WINDS 5 TO 8 MPH.
MARTIN LUTHER KING JR DAY
* SKY/WEATHER...SUNNY.
* MAX TEMPERATURE...58-68.
* MIN HUMIDITY...27-37 PERCENT.
* MIXING HEIGHT...3300 FT AGL.
* SNOW LEVEL...7000 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTH WINDS 5 MPH IN THE
MORNING...BECOMING UPSLOPE/UPVALLEY 1 TO 3
MPH.
RIDGES...............NORTHEAST WINDS 5 TO 8 MPH.
CAZ264-190230-
LAKE COUNTY PORTION OF LAKE/NAPA/SONOMA RU-
102 AM PST SUN JAN 18 2026
TODAY
* SKY/WEATHER...PARTLY CLOUDY.
* MAX TEMPERATURE...63-71.
* MIN HUMIDITY...37-47 PERCENT.
* MIXING HEIGHT...1500 FT AGL.
* SNOW LEVEL...ABOVE 4700 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......SOUTHEAST WINDS 5 MPH IN THE
MORNING...BECOMING UPSLOPE/UPVALLEY 2 TO 4
MPH.
RIDGES...............EAST WINDS 5 MPH IN THE MORNING...BECOMING
VARIABLE 2 TO 4 MPH.
TONIGHT
* SKY/WEATHER...MOSTLY CLEAR.
* MIN TEMPERATURE...42-52.
* MAX HUMIDITY...63-78 PERCENT.
* MIXING HEIGHT...0 FT AGL.
* SNOW LEVEL...ABOVE 4700 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......NORTH WINDS 5 MPH IN THE
EVENING...BECOMING DOWNSLOPE/DOWNVALLEY 2
TO 4 MPH.
RIDGES...............NORTH WINDS 5 TO 7 MPH...SHIFTING TO THE
EAST 5 TO 8 MPH AFTER MIDNIGHT.
MARTIN LUTHER KING JR DAY
* SKY/WEATHER...SUNNY.
* MAX TEMPERATURE...64-72.
* MIN HUMIDITY...35-45 PERCENT.
* MIXING HEIGHT...2400 FT AGL.
* SNOW LEVEL...ABOVE 4700 FEET.
* 20-FOOT WINDS...
VALLEYS/SLOPES.......EAST WINDS 5 MPH IN THE MORNING...BECOMING
UPSLOPE/UPVALLEY 2 TO 4 MPH.
RIDGES...............EAST WINDS 5 TO 9 MPH...SHIFTING TO THE
NORTH IN THE AFTERNOON.
EXTENDED FORECAST FOR DAYS 3 THROUGH 5
..NORTHWEST CALIFORNIA COAST
TUESDAY
PARTLY CLOUDY. LOWS 40 TO 48. HIGHS 57 TO 65. WINDS
GENERALLY LESS THAN 5 MPH.
WEDNESDAY
MOSTLY CLOUDY. PATCHY FOG. LOWS 41 TO 49. HIGHS
55 TO 63. WINDS GENERALLY LESS THAN 5 MPH.
THURSDAY
PARTLY CLOUDY. PATCHY FOG. LOWS 40 TO 48. HIGHS 52 TO
60. WINDS GENERALLY LESS THAN 5 MPH.
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. LOWS 39 TO
47. HIGHS 52 TO 60.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS 38 TO 46.
HIGHS 52 TO 60.
..NORTHWEST CALIFORNIA INTERIOR
TUESDAY
MOSTLY CLEAR. LOWS 38 TO 47. HIGHS 60 TO 68. WINDS
GENERALLY LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 39 TO 48. HIGHS 58 TO 66. WINDS
GENERALLY LESS THAN 5 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 38 TO 46. HIGHS 55 TO 65. WINDS
GENERALLY LESS THAN 5 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 35 TO 44. HIGHS 53 TO 63.
SATURDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. LOWS 34 TO
43. HIGHS 53 TO 61.
6 TO 10 DAY OUTLOOK
FRIDAY JANUARY 23 THROUGH TUESDAY JANUARY 27, 2026...
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
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