926  
FNUS75 KBOI 251605  
FWSBOI  
 
SPOT FORECAST FOR STAR RANCH...US FOREST SERVICE  
NATIONAL WEATHER SERVICE BOISE ID  
905 AM MST WED NOV 25 2009  
 
FORECAST IS BASED ON IGNITION TIME OF 1200 MST ON NOVEMBER 25.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
..HIGH PRESSURE RIDGE OVER THE AREA TODAY AND TOMORROW
 
 
   
DISCUSSION
 
 
HIGH PRESSURE RIDGE OVER THE AREA TODAY FOR LIGHT SOUTHEASTERLY WINDS.  
STRONG INVERSION WILL KEEP LOWER VALLEYS FROM MIXING THIS AFTERNOON  
AND THURSDAY. INVERSION WILL BREAK FRIDAY AS A WEAK TROUGH MOVES ACROSS  
THE REGION,.  
   
TODAY
 
 
SKY/WEATHER.........SUNNY. PATCHY FOG IN THE MORNING.  
MAX TEMPERATURE.....41 TO 44.  
MIN HUMIDITY........50 TO 65 PERCENT.  
WIND - EYE LEVEL....LESS THAN 4 MPH.  
HAINES INDEX........2 VERY LOW.  
MIXING HEIGHT.......2500 FT AGL.  
TRANSPORT WIND......SOUTHEAST AROUND 5 MPH.  
VENTILATION INDEX...125 POOR.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....16 TO 20.  
MAX HUMIDITY........80 TO 99 PERCENT.  
WIND - EYE LEVEL....NORTHWEST AROUND 3 MPH.  
HAINES INDEX........3 VERY LOW.  
MIXING HEIGHT.......2500 FT AGL.  
TRANSPORT WIND......SOUTHEAST AROUND 5 MPH.  
VENTILATION INDEX...125 POOR.  
   
THANKSGIVING DAY
 
 
SKY/WEATHER.........SUNNY. PATCHY FOG IN THE MORNING.  
MAX TEMPERATURE.....44 TO 47.  
MIN HUMIDITY........43 TO 51 PERCENT.  
WIND - EYE LEVEL....SOUTHEAST 3 TO 6 MPH.  
HAINES INDEX........4 LOW.  
MIXING HEIGHT.......3000 FT AGL.  
TRANSPORT WIND......SOUTH AROUND 10 MPH.  
VENTILATION INDEX...300 FAIR.  
 

 
FORECASTER...SMITH  
REQUESTED BY...ROB SMOLCZYNSKI  
TYPE OF REQUEST...PRESCRIBED  
.TAG 20091125.STARR.01/BOI  
 
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