488  
FNUS75 KREV 020419  
FWSREV  
 
SPOT FORECAST FOR TALLAC...USFS  
NATIONAL WEATHER SERVICE RENO NV  
919 PM PDT WED JUL 1 2020  
 
FORECAST IS BASED ON FORECAST START TIME OF 2200 PDT ON JULY 01.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL  
WEATHER SERVICE IN RENO.  
   
DISCUSSION
 
 
WARM AND DRY CONDITIONS CONTINUE THROUGH THE WEEKEND WITH TYPICAL  
AFTERNOON AND EVENING WESTERLY WINDS EACH AFTERNOON AND EVENING.  
NO THUNDERSTORMS ARE EXPECTED THROUGH THE WEEKEND. THESE WESTERLY  
WINDS COULD BE A BIT STRONGER EARLY NEXT WEEK AS A TROUGH MOVES  
INTO THE PACIFIC NORTHWEST.  
 
   
REST OF TONIGHT
 
 
SKY/WEATHER.........CLEAR.  
TEMPERATURE.........MIN 46.  
RH..................MAX 79%.  
20-FOOT WINDS.......WEST WINDS 4-8 MPH IN THE EVENING BECOMING  
DOWNSLOPE 2 TO 5 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC WETTING RAIN....0%.  
MIXING HEIGHT.......2000 FT AGL IN THE EVENING THEN 200-500 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 15 MPH IN THE EVENING BECOMING  
LIGHT.  
VENTILATION.........POOR.  
HAINES INDEX........4.  
   
THURSDAY
 
 
SKY/WEATHER.........SUNNY.  
TEMPERATURE.........MAX 72-77.  
RH..................MIN 20-25%.  
20-FOOT WINDS.......UPSLOPE 3-7 MPH BECOMING SOUTHWEST 12-17 MPH.  
GUSTS UP TO 25 MPH.  
LAL.................1.  
CHC WETTING RAIN....0%.  
MIXING HEIGHT.......200-500 FT AGL THEN 8500-9500 FT AGL IN THE  
LATE MORNING AND AFTERNOON.  
TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHWEST AROUND 15 MPH IN  
THE AFTERNOON.  
VENTILATION.........POOR, THEN BECOMING EXCELLENT BY THE AFTERNOON.  
HAINES INDEX........3-4.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........CLEAR.  
TEMPERATURE.........MIN 47.  
RH..................MAX 75%.  
20-FOOT WINDS.......SOUTHWEST WINDS 14-19 MPH BECOMING SOUTH 9-14  
MPH IN THE LATE EVENING AND OVERNIGHT.  
LAL.................1.  
CHC WETTING RAIN....0%.  
MIXING HEIGHT.......3200-4200 FT AGL IN THE EVENING THEN 200-500 FT  
AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH IN THE EVENING BECOMING  
LIGHT.  
VENTILATION.........GOOD IN THE EVENING, THEN BECOMING POOR OVERNIGHT.  
HAINES INDEX........4.  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY.  
TEMPERATURE.........MAX 72-77.  
RH..................MIN 17-22%.  
20-FOOT WINDS.......SOUTHWEST WINDS 13-18 MPH. GUSTS UP TO 25 MPH.  
LAL.................1.  
CHC WETTING RAIN....0%.  
MIXING HEIGHT.......200-500 FT AGL THEN 7200-8200 FT AGL IN THE  
LATE MORNING AND AFTERNOON.  
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH.  
VENTILATION.........MARGINAL INCREASING TO EXCELLENT IN THE  
AFTERNOON.  
HAINES INDEX........5.  
 

 
FORECASTER...HOON  
REQUESTED BY...PHIL HEITZKE  
TYPE OF REQUEST...WILDFIRE  
.TAG 2008853.0/REV  
.DELDT 07/01/20  
.FORMATTERVERSION 1.0.26  
.EMAIL PHILLIP.HEITZKE@USDA.GOV  
 
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