691  
FNUS76 KOTX 160309  
FWSOTX  
 
SPOT FORECAST FOR RATTLESNAKE FIRE...COLVILLE AGENCY  
NATIONAL WEATHER SERVICE SPOKANE WA  
809 PM PDT SUN JUL 15 2018  
 
FORECAST IS BASED ON FORECAST START TIME OF 2000 PDT ON JULY 15.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
MONDAY WILL BE SIMILAR TO TODAY WITH VERY DRY CONDITIONS AND WEAK  
DIURNALLY DRIVEN WINDS. MONDAY AND TUESDAY WILL ALSO BE VERY HOT  
WITH HIGH TEMPERATURES NEAR 100 DEGREES. RELATIVE HUMIDITY RECOVERIES  
WILL ALSO BE POOR THROUGH TUESDAY NIGHT. A WEAK COLD FRONT MOVING IN  
AROUND WEDNESDAY WILL RESULT IN A LITTLE BIT MORE SOUTHWESTERLY WIND  
ON THE FIRE FOR THE AFTERNOON TUESDAY AND SLIGHT STRONGER ON  
WEDNESDAY BETWEEN ABOUT 8 TO 12 MPH.  
   
REST OF TONIGHT
 
 
SKY/WEATHER.........CLEAR.  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....61.  
MAX HUMIDITY........47 PERCENT.  
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY WINDS 2 TO 4 MPH.  
MIXING HEIGHT.......NEAR SURFACE.  
TRANSPORT WINDS.....DOWNSLOPE/DOWNVALLEY 2 TO 4 MPH.  
HAINES INDEX........5 MODERATE.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....99.  
MIN HUMIDITY........10 PERCENT.  
WIND (20 FT)........UPSLOPE/UPVALLEY 2 TO 5 MPH BY 1000.  
MIXING HEIGHT.......BECOMING 6300 FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....WEST 2 TO 5 MPH.  
HAINES INDEX........4 LOW.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....64.  
MAX HUMIDITY........45 PERCENT.  
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY WINDS 2 TO 5 MPH.  
MIXING HEIGHT.......NEAR SURFACE.  
TRANSPORT WINDS.....DOWNSLOPE/DOWNVALLEY 2 TO 5 MPH.  
HAINES INDEX........4 LOW.  
 

 
FORECASTER...SVH  
REQUESTED BY...JARETT COOK  
TYPE OF REQUEST...WILDFIRE  
.TAG 1812849.1/OTX  
.DELDT 07/15/18  
 
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