459  
FNUS76 KHNX 220055  
FWSHNX  
 
SPOT FORECAST FOR ASH MT. RX...USFWS  
NATIONAL WEATHER SERVICE HANFORD CA  
555 PM PDT THU MAY 21 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 0000 PDT ON MAY 22.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
 
A WARMING AND DRYING TREND WILL CONTINUE UNTIL FRIDAY. THUS,  
ELEVATED FIRE WEATHER THROUGHOUT THE WEEK. THERE WILL BE LOW  
DAYTIME HUMIDITY WITH MODERATE TO POOR OVERNIGHT RECOVERY EACH  
NIGHT FOR THE REMAINDER OF THIS WEEK. AFTERNOON AND EVENING  
BREEZES WILL OCCUR EACH DAY, BUT WINDS WILL OTHERWISE BE LIGHT.  
 
   
REST OF TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).  
MIN TEMPERATURE.....62-65.  
MAX HUMIDITY........29-32 PERCENT.  
EYE LEVEL WINDS.....LIGHT AND VARIABLE WINDS 2-5 MPH THIS  
EVENING, BECOMING DOWNSLOPE 1-3 MPH  
OVERNIGHT.  
SURROUNDING RIDGE...WEST TO NORTHWEST 4-8 MPH.  
MIXING HEIGHT.......LOWERING TO NEAR 500 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 4 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
MAX TEMPERATURE.....94-96.  
MIN HUMIDITY........14-16 PERCENT.  
EYE LEVEL WINDS.....SOUTHWEST 3-6 MPH WITH GUSTS TO 10 MPH.  
SURROUNDING RIDGE...WEST TO NORTHWEST 5-9 MPH WITH GUSTS TO  
14 MPH.  
MIXING HEIGHT.......RISING TO AROUND 6300 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 8 MPH.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).  
MIN TEMPERATURE.....61-63.  
MAX HUMIDITY........32-35 PERCENT.  
EYE LEVEL WINDS.....WEST WINDS 3-6 MPH IN THE EVENING,  
DECREASING TO 1-3 MPH OVERNIGHT.  
SURROUNDING RIDGE...SOUTHWEST TO WEST 5-9 MPH WITH GUSTS TO  
13 MPH.  
MIXING HEIGHT.......300 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 6 MPH.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
MAX TEMPERATURE.....89-92.  
MIN HUMIDITY........17-20 PERCENT.  
EYE LEVEL WINDS.....LIGHT WINDS 2-4 MPH IN THE MORNING, BECOMING  
SOUTHWEST TO WEST 5-9 MPH WITH GUSTS TO  
14 MPH IN THE AFTERNOON.  
SURROUNDING RIDGE...SOUTHWEST TO WEST 8-14 MPH WITH GUSTS TO 21 MPH.  
MIXING HEIGHT.......RISING TO AROUND 5600 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.  
 
FORECASTER...MOLINA  
 
 
 
REQUESTED BY...ARMANDO ALVAREZ  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2614269.0/HNX  
.DELDT 05/21/26  
.FORMATTERVERSION 2.0.0  
.EMAIL ARMANDO_ALVAREZ@NPS.GOV  
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