695  
FNUS76 KEKA 171545  
FWSEKA  
 
SPOT FORECAST FOR HAYWARD FLAT AIR CURTAIN BURNING...US FOREST SERVICE  
NATIONAL WEATHER SERVICE EUREKA CA  
845 AM PDT SUN MAY 17 2026  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
IF YOU HAVE QUESTIONS OR CONCERNS REGARDING THIS FORECAST, PLEASE  
CONTACT OUR OFFICE AT (707) 443-6484  
 
PLEASE DO NOT RESPOND DIRECTLY IF YOU HAVE RECEIVED THIS IN AN EMAIL.  
   
DISCUSSION
 
GUSTY NORTH WIND WILL CONTINUE SUNDAY, HELPING TO  
KEEP HIGHS MODERATE ONLY AROUND 70. RH, HOWEVER, WILL CONTINUE TO  
DROP CLOSER TO 15 PERCENT. GUSTS WILL PEAK IN EXPOSED AREAS THIS  
AFTERNOON NEAR 25 MPH. RH RECOVERY WILL BE ONLY MODERATE  
OVERNIGHT. CONDITIONS WILL REMAIN DRY BUT BEGIN TO WARM MONDAY  
WITH HIGHS PULLING BACK INTO THE MID 70S. NORTH WINDS WILL WEAKEN  
WITH AFTERNOON GUSTS CLOSET TO 10 MPH WITH MORE TERRAIN  
INFLUENCE. CONDITIONS WILL CONTINUE TO WARM THROUGH THE WEEK WITH  
RH REMAINING AROUND 20 PERCENT OR LESS WITH CALMER TERRAIN WINDS.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY.  
CWR.................0 PERCENT.  
MAX TEMPERATURE.....67 TO 71.  
MIN HUMIDITY........15 TO 20 PERCENT.  
WIND (20 FT)........NORTH WINDS 8 TO 14 MPH WITH GUSTS TO AROUND 25  
MPH.  
MIXING HEIGHT.......800 FT AGL INCREASING TO 7000-8000 FT AGL.  
TRANSPORT WINDS.....NORTHEAST AROUND 24 MPH.  
 
TIME (PDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........30 30 30 5 5 5 1 1 1 2  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0  
TEMP............44 47 50 53 57 61 64 66 67 67  
RH..............60 54 48 39 34 28 23 21 19 18  
20 FT WIND DIR..N N N N N N N N N N  
20 FT WIND SPD..8 8 8 12 12 12 12 12 12 10  
20 FT WIND GUST.21 21 21 21 21 21 23 23 23 23  
MIX HGT (KFT)...3.2 3.2 3.2 6.4 6.4 6.4 8.8 8.8 8.8 7.6  
TRANSP WIND DIR.N N N NE NE NE NE NE NE N  
TRANSP WIND SPD.20 20 20 28 28 28 28 28 28 18  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
CWR.................0 PERCENT.  
MIN TEMPERATURE.....40 TO 45.  
MAX HUMIDITY........50 TO 60 PERCENT.  
WIND (20 FT)........NORTH WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 23  
MPH IN THE EVENING DIMINISHING TO 2 TO 4 MPH  
OVERNIGHT.  
MIXING HEIGHT.......7500 FT AGL DECREASING TO 200-400 FT AGL  
IN THE EVENING.  
TRANSPORT WINDS.....NORTH AROUND 15 MPH.  
 
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........2 2 5 5 5 5 5 5 8 8 8 11  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............67 65 62 57 54 52 50 48 47 45 44 43  
RH..............19 22 25 30 35 39 44 49 56 60 60 65  
20 FT WIND DIR..N N N N N N N N N N N N  
20 FT WIND SPD..10 10 7 7 7 5 5 5 3 3 3 2  
20 FT WIND GUST.23 23 18 18 18 14 14 14 9 9 9 7  
MIX HGT (KFT)...7.6 7.6 0.9 0.9 0.9 0.5 0.5 0.5 0.4 0.4 0.4 0.4  
TRANSP WIND DIR.N N N N N N N N N N N NE  
TRANSP WIND SPD.18 18 18 18 18 13 13 13 13 13 13 9  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY.  
CWR.................0 PERCENT.  
MAX TEMPERATURE.....AROUND 75.  
MIN HUMIDITY........AROUND 15 PERCENT.  
WIND (20 FT)........NORTHEAST/UPSLOPE 1 TO 3 MPH INCREASING TO  
5 TO 8 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......200-400 FT AGL INCREASING TO 4000-5000 FT  
AGL.  
TRANSPORT WINDS.....NORTHEAST AROUND 9 MPH.  
 
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........11 11 7 7 7 2 2 2 2 2 2 2  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............43 45 48 52 58 62 66 70 74 75 75 76  
RH..............65 60 49 39 36 29 24 19 17 16 15 15  
20 FT WIND DIR..N N NE NE NE E E E SE SE SE NE  
20 FT WIND SPD..2 2 2 2 2 2 2 2 3 3 3 5  
20 FT WIND GUST.7 7 7 7 7 7 7 7 9 9 9 10  
MIX HGT (KFT)...0.4 0.4 2.3 2.3 2.3 7.0 7.0 7.0 10 10 10 8.9  
TRANSP WIND DIR.NE NE NE NE NE N N N N N N N  
TRANSP WIND SPD.9 9 9 9 9 9 9 9 9 9 9 8  
 

 
FORECASTER...JAMES WHITE  
REQUESTED BY...RYAN REGELIN  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2613724.1/EKA  
.DELDT 05/17/26  
.EMAIL RYAN.REGELIN@USDA.GPV  
 
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