263  
FNUS76 KHNX 180111  
FWSHNX  
 
SPOT FORECAST FOR CHIL FIRE...USWFS  
NATIONAL WEATHER SERVICE HANFORD CA  
611 PM PDT SUN MAY 17 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 0600 PDT ON MAY 18.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
 
COOLER TEMPERATURES WITH LOW DAYTIME HUMIDITY WILL OCCUR MONDAY,  
BUT WARMING WILL TAKE PLACE BEGINNING TUESDAY. THE COMBINATION OF  
LOWER DAYTIME RELATIVE HUMIDITIES AND BREEZY AFTERNOON WINDS WILL  
CONTINUE AN ELEVATED THREAT OF FIRE WEATHER CONCERNS THIS WEEK.  
MODERATE OVERNIGHT HUMIDITY RECOVERY WILL OCCUR EACH NIGHT.  
   
MONDAY  
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....51-55.  
MIN HUMIDITY........16-20 PERCENT.  
EYE LEVEL WINDS.....SOUTH 3-6 MPH IN THE MORNING SHIFTING TO THE  
WEST IN THE AFTERNOON.  
SURROUNDING RIDGE...SOUTH 7-14 MPH BECOMING WEST IN THE AFTERNOON.  
GUSTS TO 25 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......RISING TO 6000 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 8 MPH.  
WIND (20 FT)........SOUTH 6-10 MPH IN THE MORNING BECOMING WEST  
IN THE AFTERNOON. GUSTS TO 15 MPH IN THE  
AFTERNOON.  
   
MONDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....40-44.  
MAX HUMIDITY........41-46 PERCENT.  
EYE LEVEL WINDS.....NORTH WINDS UP TO 5 MPH SHIFTING TO THE EAST  
OVERNIGHT.  
SURROUNDING RIDGE...NORTHEAST 6-12 MPH.  
MIXING HEIGHT.......LOWERING TO 500 FT AGL.  
TRANSPORT WINDS.....NORTHEAST AROUND 8 MPH.  
WIND (20 FT)........NORTH 4-8 MPH IN THE EVENING SHIFTING TO THE  
EAST OVERNIGHT.  
   
TUESDAY  
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....55-59.  
MIN HUMIDITY........16-20 PERCENT.  
EYE LEVEL WINDS.....EAST 3-5 MPH IN THE MORNING SHIFTING TO THE  
SOUTHWEST IN THE AFTERNOON.  
SURROUNDING RIDGE...SOUTH 7-13 MPH. GUSTS TO 20 MPH IN THE  
AFTERNOON.  
MIXING HEIGHT.......RISING TO 8000 FT AGL.  
TRANSPORT WINDS.....SOUTH AROUND 7 MPH.  
WIND (20 FT)........EAST 5-10 MPH SHIFTING TO THE SOUTHWEST  
IN THE AFTERNOON. GUSTS TO 15 MPH IN THE  
AFTERNOON.  
 
 
FORECASTER...OCHS  
REQUESTED BY...ALONZO BARRERAS  
TYPE OF REQUEST...WILDFIRE  
.TAG 2613693.5/HNX  
.DELDT 05/18/26  
.FORMATTERVERSION 2.0.0  
.EMAIL ALONZO_BARRERAS@NPS.GOV  
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