480  
WWUS85 KBOI 180255  
RFWBOI  
 
URGENT - FIRE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE BOISE ID  
855 PM MDT THU SEP 17 2020  
 
ORZ636-637-180400-  
/O.EXP.KBOI.FW.W.0015.000000T0000Z-200918T0300Z/  
BURNS BLM-VALE BLM-  
855 PM MDT THU SEP 17 2020 /755 PM PDT THU SEP 17 2020/  
 
...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT /8 PM PDT/ THIS  
EVENING FOR...GUSTY WINDS AND LOW RELATIVE HUMIDITIES AND HIGH  
HAINES FOR BURNS BLM AND VALE BLM...WHICH ARE FIRE WEATHER ZONES  
636 AND 637...  
 
CRITICAL CONDITIONS HAVE DIMINISHED ACROSS THE WARNED AREA THIS  
EVENING, AND CONDITIONS SHOULD REMAIN BELOW CRITICAL THRESHOLDS  
TONIGHT.  
 

 
 
IDZ401>403-421-182200-  
/O.CON.KBOI.FW.W.0015.000000T0000Z-200919T0300Z/  
WESTERN PAYETTE NATIONAL FOREST-EASTERN PAYETTE NATIONAL FOREST-  
NORTHERN BOISE NATIONAL FOREST-  
SOUTHERN BOISE NATIONAL FOREST/WESTERN SAWTOOTH NATIONAL FOREST-  
855 PM MDT THU SEP 17 2020  
   
..RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT FRIDAY FOR
 
 
HIGH HAINES FOR WESTERN PAYETTE NATIONAL FOREST...EASTERN PAYETTE  
NATIONAL FOREST...NORTHERN BOISE NATIONAL FOREST AND SOUTHERN  
BOISE NATIONAL FOREST/WESTERN SAWTOOTH NATIONAL FOREST...WHICH ARE  
FIRE WEATHER ZONES 401...402...403 AND 421...  
 
* WIND...SOUTH 5 TO 15 MPH WITH GUSTS UP TO 25 MPH FRIDAY  
AFTERNOON.  
 
* RELATIVE HUMIDITY...POOR HUMIDITY RECOVERY TONIGHT. MINIMUM  
RELATIVE HUMIDITY ON FRIDAY OF 12 TO 24 PERCENT.  
 
* HAINES...6 TONIGHT AND FRIDAY  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS  
ARE EITHER OCCURRING NOW, OR WILL OCCUR SHORTLY.  
 

 
 

 
 
IDZ423-426-182200-  
/O.CON.KBOI.FW.W.0015.200918T1800Z-200919T0300Z/  
OWYHEE MOUNTAINS-SOUTHERN HIGHLANDS-  
855 PM MDT THU SEP 17 2020  
 
...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 9 PM MDT  
FRIDAY FOR...GUSTY WINDS AND LOW RELATIVE HUMIDITIES FOR OWYHEE  
MOUNTAINS AND SOUTHERN HIGHLANDS...WHICH ARE FIRE WEATHER ZONES  
423 AND 426...  
 
* WIND...SOUTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.  
 
* RELATIVE HUMIDITY...MINIMUM READINGS OF 12 TO 22 PERCENT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS  
ARE EITHER OCCURRING NOW, OR WILL OCCUR SHORTLY.  
 

 
 

 
 
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