299  
FNUS75 KBOI 191410  
FWSBOI  
 
SPOT FORECAST FOR MARSH CREEK...FS  
NATIONAL WEATHER SERVICE BOISE ID  
810 AM MDT WED JUN 19 2019  
 
FORECAST IS BASED ON FORECAST START TIME OF 0800 MDT ON JUNE 19.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
..BREEZY THIS AFTERNOON
 
 
   
DISCUSSION
 
 
A DRY COLD FRONTAL PASSAGE WILL RESULT IN BREEZY CONDITIONS TODAY  
WITH GUSTS TO AROUND 20 MPH BY THIS AFTERNOON. THE GUSTY WINDS  
WILL SUBSIDE LATE THIS EVENING. A LOW PRESSURE SYSTEM WILL DROP  
INTO THE NORTHERN ROCKIES ON THURSDAY BRINGING MUCH COOLER  
TEMPERATURES AND A SLIGHT CHANCE OF AFTERNOON SHOWERS.  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....63 TO 68.  
MIN HUMIDITY........22 TO 27 PERCENT.  
CWR /0.10 INCH/.....0 PERCENT.  
LAL.................1.  
WIND - EYE LEVEL....WEST 3 TO 6 MPH, INCREASING TO 7 TO 13 MPH AFTER  
1100. GUSTS UP TO 22 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......6500 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 25 MPH.  
HAINES INDEX........4 LOW.  
VENTILATION INDEX...1625 EXCELLENT.  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR.  
MIN TEMPERATURE.....34 TO 39.  
MAX HUMIDITY........65 TO 70 PERCENT.  
CWR /0.10 INCH/.....0 PERCENT.  
LAL.................1.  
WIND - EYE LEVEL....WEST 7 TO 13 MPH WITH GUSTS UP TO 24 MPH IN  
THE EVENING, DIMINISHING TO 3 TO 6 MPH BY MIDNIGHT.  
MIXING HEIGHT.......700 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.  
HAINES INDEX........3 VERY LOW.  
VENTILATION INDEX...70 POOR.  
 

 
FORECASTER...WOJCIK  
REQUESTED BY...AUDREY LYMAN  
TYPE OF REQUEST...WILDFIRE  
.TAG 1911081.0/BOI  
 
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