913  
FNUS56 KEKA 211041  
FWFEKA  
 
FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA  
NATIONAL WEATHER SERVICE EUREKA CA  
341 AM PDT TUE MAY 21 2024  
   
DISCUSSION
 
NEAR NORMAL TO SLIGHTLY BELOW NORMAL TEMPERATURES  
ARE EXPECTED THROUGH THE WEEKEND AS A SERIES OF DRY TROUGHS  
MOVE ACROSS PACIFIC NORTHWEST. NORTHWESTERLY WINDS WILL EASE  
SLIGHTLY TODAY, BUT STILL REMAIN GUSTY. MINIMUM RH VALUES ACROSS  
THE INTERIOR WILL REMAIN IN THE 20S AND 30S TODAY, FOLLOWED BY AN  
INCREASE IN RH ON WEDNESDAY AS WEAK FRONT PUSHES INTO THE AREA.  
 
CAZ201-220130-  
NORTH COAST-  
341 AM PDT TUE MAY 21 2024  
   
TODAY
 
 
* SKY/WEATHER...SUNNY.  
* MAX TEMPERATURE...61-71.  
* MIN HUMIDITY...33-43 PERCENT.  
* MIXING HEIGHT...2900 FT AGL.  
* SNOW LEVEL...ABOVE 4300 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......NORTHWEST WINDS 6 TO 11 MPH.  
RIDGES...............NORTHWEST WINDS 7 TO 12 MPH.  
   
TONIGHT
 
 
* SKY/WEATHER...PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. PATCHY  
FOG EARLY IN THE MORNING. SLIGHT CHANCE OF DRIZZLE  
EARLY IN THE MORNING.  
* MIN TEMPERATURE...44-52.  
* MAX HUMIDITY...85-100 PERCENT.  
* MIXING HEIGHT...0 FT AGL.  
* SNOW LEVEL...ABOVE 4300 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 10 MPH.  
RIDGES...............NORTHWEST WINDS 5 TO 10 MPH.  
   
WEDNESDAY
 
 
* 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...39-49 PERCENT.  
* MIXING HEIGHT...4200 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.  
 

 
 
CAZ202-220130-  
COASTAL MENDOCINO-  
341 AM PDT TUE MAY 21 2024  
   
TODAY
 
 
* SKY/WEATHER...SUNNY.  
* MAX TEMPERATURE...63-73.  
* MIN HUMIDITY...32-42 PERCENT.  
* MIXING HEIGHT...2100 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.  
   
TONIGHT
 
 
* SKY/WEATHER...MOSTLY CLEAR.  
* MIN TEMPERATURE...44-52.  
* MAX HUMIDITY...84-99 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.  
   
WEDNESDAY
 
 
* SKY/WEATHER...SUNNY.  
* MAX TEMPERATURE...58-68.  
* MIN HUMIDITY...41-51 PERCENT.  
* MIXING HEIGHT...3200 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.  
 

 
 
CAZ203-204-220130-  
UPPER SMITH-LOWER MIDDLE KLAMATH-  
341 AM PDT TUE MAY 21 2024  
   
TODAY
 
 
* SKY/WEATHER...SUNNY.  
* MAX TEMPERATURE...65-75.  
* MIN HUMIDITY...24-32 PERCENT.  
* MIXING HEIGHT...7900 FT AGL.  
* SNOW LEVEL...5600 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......NORTHEAST WINDS 5 TO 7 MPH...SHIFTING TO  
THE NORTHWEST IN THE AFTERNOON.  
RIDGES...............NORTHEAST WINDS 5 TO 9 MPH...SHIFTING TO  
THE NORTHWEST 5 TO 8 MPH IN THE AFTERNOON.  
   
TONIGHT
 
 
* SKY/WEATHER...PARTLY CLOUDY.  
* MIN TEMPERATURE...42-50.  
* MAX HUMIDITY...77-92 PERCENT.  
* MIXING HEIGHT...0 FT AGL.  
* SNOW LEVEL...ABOVE 6000 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......WEST WINDS 5 MPH IN THE EVENING...BECOMING  
DOWNSLOPE/DOWNVALLEY 2 TO 4 MPH.  
RIDGES...............NORTHWEST WINDS 5 TO 8 MPH.  
   
WEDNESDAY
 
 
* SKY/WEATHER...MOSTLY CLOUDY THEN BECOMING SUNNY.  
* MAX TEMPERATURE...57-67.  
* MIN HUMIDITY...33-43 PERCENT.  
* MIXING HEIGHT...7600 FT AGL.  
* SNOW LEVEL...5600 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......UPSLOPE/UPVALLEY 2 TO 5 MPH...BECOMING  
WEST 5 TO 9 MPH IN THE AFTERNOON.  
RIDGES...............NORTHWEST WINDS 7 TO 12 MPH.  
 

 
 
CAZ211-212-220130-  
HOOPA-VAN DUZEN/MAD RIVER-  
341 AM PDT TUE MAY 21 2024  
   
TODAY
 
 
* SKY/WEATHER...SUNNY.  
* MAX TEMPERATURE...64-74.  
* MIN HUMIDITY...20-28 PERCENT.  
* MIXING HEIGHT...6900 FT AGL.  
* SNOW LEVEL...ABOVE 5800 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 10 MPH.  
RIDGES...............NORTHWEST WINDS 5 TO 10 MPH.  
   
TONIGHT
 
 
* SKY/WEATHER...MOSTLY CLEAR.  
* MIN TEMPERATURE...41-49.  
* MAX HUMIDITY...81-96 PERCENT.  
* MIXING HEIGHT...0 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.  
   
WEDNESDAY
 
 
* SKY/WEATHER...PARTLY CLOUDY THEN BECOMING SUNNY. PATCHY FOG EARLY  
IN THE MORNING.  
* MAX TEMPERATURE...56-66.  
* MIN HUMIDITY...29-39 PERCENT.  
* MIXING HEIGHT...5800 FT AGL.  
* SNOW LEVEL...5500 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......NORTHWEST WINDS 6 TO 11 MPH.  
RIDGES...............NORTHWEST WINDS 7 TO 12 MPH.  
 

 
 
CAZ283-220130-  
TRINITY-  
341 AM PDT TUE MAY 21 2024  
   
TODAY
 
 
* SKY/WEATHER...SUNNY.  
* MAX TEMPERATURE...66-76.  
* MIN HUMIDITY...18-26 PERCENT.  
* MIXING HEIGHT...8400 FT AGL.  
* SNOW LEVEL...6300 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......NORTHEAST WINDS 5 MPH...SHIFTING TO THE  
NORTHWEST 5 TO 9 MPH IN THE AFTERNOON.  
RIDGES...............NORTH WINDS 5 TO 8 MPH.  
   
TONIGHT
 
 
* SKY/WEATHER...MOSTLY CLEAR.  
* MIN TEMPERATURE...41-49.  
* MAX HUMIDITY...69-84 PERCENT.  
* MIXING HEIGHT...0 FT AGL.  
* SNOW LEVEL...ABOVE 8000 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......WEST WINDS 5 TO 8 MPH.  
RIDGES...............NORTHWEST WINDS 5 TO 9 MPH.  
   
WEDNESDAY
 
 
* SKY/WEATHER...SUNNY.  
* MAX TEMPERATURE...59-69.  
* MIN HUMIDITY...22-32 PERCENT.  
* MIXING HEIGHT...8300 FT AGL.  
* SNOW LEVEL...6700 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......NORTHWEST WINDS 6 TO 11 MPH.  
RIDGES...............NORTHWEST WINDS 7 TO 12 MPH.  
 

 
 
CAZ276-220130-  
INTERIOR MENDOCINO-  
341 AM PDT TUE MAY 21 2024  
   
TODAY
 
 
* SKY/WEATHER...SUNNY.  
* MAX TEMPERATURE...73-83.  
* MIN HUMIDITY...22-30 PERCENT.  
* MIXING HEIGHT...7000 FT AGL.  
* SNOW LEVEL...ABOVE 4000 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 9 MPH.  
RIDGES...............NORTHWEST WINDS 5 TO 10 MPH.  
   
TONIGHT
 
 
* SKY/WEATHER...MOSTLY CLEAR.  
* MIN TEMPERATURE...45-53.  
* MAX HUMIDITY...73-88 PERCENT.  
* MIXING HEIGHT...0 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.  
   
WEDNESDAY
 
 
* SKY/WEATHER...SUNNY.  
* MAX TEMPERATURE...65-75.  
* MIN HUMIDITY...36-46 PERCENT.  
* MIXING HEIGHT...5000 FT AGL.  
* SNOW LEVEL...ABOVE 4000 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 10 MPH.  
RIDGES...............NORTHWEST WINDS 6 TO 11 MPH.  
 

 
 
CAZ277-220130-  
W MENDOCINO NF/E MENDOCINO UNIT-  
341 AM PDT TUE MAY 21 2024  
   
TODAY
 
 
* SKY/WEATHER...SUNNY.  
* MAX TEMPERATURE...68-78.  
* MIN HUMIDITY...17-25 PERCENT.  
* MIXING HEIGHT...8400 FT AGL.  
* SNOW LEVEL...6400 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......NORTH WINDS 5 TO 7 MPH...SHIFTING TO THE  
NORTHWEST 5 TO 9 MPH IN THE AFTERNOON.  
RIDGES...............NORTH WINDS 5 TO 9 MPH.  
   
TONIGHT
 
 
* SKY/WEATHER...MOSTLY CLEAR.  
* MIN TEMPERATURE...46-54.  
* MAX HUMIDITY...62-77 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.  
   
WEDNESDAY
 
 
* SKY/WEATHER...SUNNY.  
* MAX TEMPERATURE...63-73.  
* MIN HUMIDITY...30-40 PERCENT.  
* MIXING HEIGHT...6600 FT AGL.  
* SNOW LEVEL...ABOVE 7100 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......NORTHWEST WINDS 6 TO 11 MPH.  
RIDGES...............NORTHWEST WINDS 6 TO 11 MPH.  
 

 
 
CAZ264-220130-  
LAKE COUNTY PORTION OF LAKE/NAPA/SONOMA RU-  
341 AM PDT TUE MAY 21 2024  
   
TODAY
 
 
* SKY/WEATHER...SUNNY.  
* MAX TEMPERATURE...75-85.  
* MIN HUMIDITY...14-22 PERCENT.  
* MIXING HEIGHT...8200 FT AGL.  
* SNOW LEVEL...ABOVE 4700 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......NORTH WINDS 5 MPH...SHIFTING TO THE  
NORTHWEST IN THE AFTERNOON.  
RIDGES...............NORTHEAST WINDS 6 TO 11 MPH...SHIFTING TO  
THE NORTHWEST 5 TO 9 MPH IN THE AFTERNOON.  
   
TONIGHT
 
 
* SKY/WEATHER...CLEAR.  
* MIN TEMPERATURE...50-58.  
* MAX HUMIDITY...54-69 PERCENT.  
* MIXING HEIGHT...0 FT AGL.  
* SNOW LEVEL...ABOVE 4700 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......NORTHWEST WINDS 5 TO 10 MPH.  
RIDGES...............NORTHWEST WINDS 6 TO 11 MPH.  
   
WEDNESDAY
 
 
* SKY/WEATHER...SUNNY.  
* MAX TEMPERATURE...72-82.  
* MIN HUMIDITY...30-40 PERCENT.  
* MIXING HEIGHT...7200 FT AGL.  
* SNOW LEVEL...ABOVE 4700 FEET.  
* 20-FOOT WINDS...  
VALLEYS/SLOPES.......NORTHWEST WINDS 6 TO 11 MPH.  
RIDGES...............NORTHWEST WINDS 7 TO 12 MPH.  
 

 
 
   
EXTENDED FORECAST FOR DAYS 3 THROUGH 5
 
 
   
..NORTHWEST CALIFORNIA COAST
 
   
THURSDAY
 
PARTLY CLOUDY. LOWS 39 TO 47. HIGHS 55 TO 64. NORTH  
WINDS 5 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS 40 TO 48. HIGHS 56 TO 65. NORTH  
WINDS 5 MPH.    
SATURDAY
 
MOSTLY CLOUDY. LOWS 43 TO 51. HIGHS 54 TO 62.  
NORTHWEST WINDS 5 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS 40 TO 48. HIGHS 56 TO 65.    
MEMORIAL DAY
 
MOSTLY CLEAR. LOWS 41 TO 49. HIGHS 58 TO 66.  
   
..NORTHWEST CALIFORNIA INTERIOR
 
   
THURSDAY
 
MOSTLY CLEAR. LOWS 40 TO 50. HIGHS 67 TO 80.  
NORTHWEST WINDS 5 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS 42 TO 50. HIGHS 68 TO 81. NORTHWEST  
WINDS 5 MPH.    
SATURDAY
 
MOSTLY CLEAR. LOWS 41 TO 49. HIGHS 63 TO 75. WEST  
WINDS 5 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS 41 TO 49. HIGHS 69 TO 79.    
MEMORIAL DAY
 
MOSTLY CLEAR. LOWS 44 TO 52. HIGHS 73 TO 83.  
   
6 TO 10 DAY OUTLOOK...SUNDAY MAY 26 THROUGH THURSDAY MAY 30, 2024
 
 
FOR NW CALIF...NEAR NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION.  
 

 
 
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