615  
WWUS85 KRIW 252007  
RFWRIW  
 
URGENT - FIRE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE RIVERTON WY  
207 PM MDT SUN AUG 25 2019  
 
WYZ279-260815-  
/O.NEW.KRIW.FW.W.0007.190826T1800Z-190827T0200Z/  
/O.CON.KRIW.FW.W.0006.000000T0000Z-190826T0200Z/  
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-  
207 PM MDT SUN AUG 25 2019  
 
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS  
EVENING...   
..RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT MONDAY
 
 
THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG  
WARNING, WHICH IS IN EFFECT THROUGH 8 PM MDT THIS EVENING AND AGAIN  
FROM NOON TO 8 PM MDT MONDAY.  
 
* IMPACTS: LOW HUMIDITIES AND STRONG GUSTY WINDS WILL CREATE  
ERRATIC FIRE BEHAVIOR AND NEW FIRE STARTS.  
 
* AFFECTED AREA:  
IN SOUTHWEST WY...FIRE WEATHER ZONE 279.  
 
* WIND: WEST 20 TO 30 MPH. EXPECT SOME WIND GUSTS OF UP TO 50 MPH  
THIS AFTERNOON AND EARLY EVENING.  
 
* HUMIDITY: AS LOW AS 12 PERCENT.  
 
* COUNTIES AFFECTED:  
IN SOUTHWEST WY...SWEETWATER.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE  
EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG  
WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN  
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.  
 

 
 

 
 
WYZ277-260815-  
/O.EXT.KRIW.FW.W.0006.000000T0000Z-190827T0200Z/  
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-  
207 PM MDT SUN AUG 25 2019  
   
..RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM MDT MONDAY
 
 
* IMPACTS: LOW HUMIDITIES AND STRONG GUSTY WINDS WILL CREATE  
ERRATIC FIRE BEHAVIOR AND NEW FIRE STARTS.  
 
* AFFECTED AREA:  
IN SOUTHWEST WY...FIRE WEATHER ZONE 277.  
 
* WIND: WEST 15 TO 25 MPH. EXPECT SOME WIND GUSTS OF UP TO 45 MPH  
THIS AFTERNOON AND EARLY EVENING.  
 
* HUMIDITY: AS LOW AS 15 PERCENT.  
 
* COUNTIES AFFECTED:  
IN SOUTHWEST WY...UINTA.  
IN WEST CENTRAL WY...LINCOLN.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE  
EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG  
WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN  
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.  
 

 
 

 
 
WYZ288-414>416-260200-  
/O.CON.KRIW.FW.W.0006.000000T0000Z-190826T0200Z/  
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-  
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-  
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-  
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-  
207 PM MDT SUN AUG 25 2019  
 
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS  
EVENING...  
 
* IMPACTS: LOW HUMIDITIES AND STRONG GUSTY WINDS WILL CREATE  
ERRATIC FIRE BEHAVIOR AND NEW FIRE STARTS.  
 
* AFFECTED AREA:  
IN CENTRAL WY FIRE ZONE....288.  
IN NORTHWEST WY FIRE ZONE....415.  
IN WEST CENTRAL WY FIRE ZONES...414...416.  
 
* WIND: WEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH.  
 
* HUMIDITY: AS LOW AS 17 PERCENT.  
 
* COUNTIES AFFECTED:  
IN CENTRAL WY...FREMONT.  
IN NORTH CENTRAL WY...PARK.  
IN WEST CENTRAL WY...LINCOLN...SUBLETTE...TETON.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE  
EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG  
WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN  
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.  
 

 
 

 
 
WYZ278-260200-  
/O.CON.KRIW.FW.W.0006.000000T0000Z-190826T0200Z/  
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-  
207 PM MDT SUN AUG 25 2019  
 
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS  
EVENING...  
 
* IMPACTS: LOW HUMIDITIES AND STRONG GUSTY WINDS WILL CREATE  
ERRATIC FIRE BEHAVIOR AND NEW FIRE STARTS.  
 
* AFFECTED AREA:  
IN WEST CENTRAL WY...FIRE WEATHER ZONE 278.  
 
* WIND: WEST 20 TO 30 MPH WITH GUSTS UP TO 45 MPH.  
 
* HUMIDITY: AS LOW AS 13 PERCENT.  
 
* COUNTIES AFFECTED:  
IN SOUTHWEST WY...SWEETWATER.  
IN WEST CENTRAL WY...LINCOLN...SUBLETTE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE  
EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG  
WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN  
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.  
 

 
 

 
 
WYZ289-260200-  
/O.CON.KRIW.FW.W.0006.000000T0000Z-190826T0200Z/  
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-  
207 PM MDT SUN AUG 25 2019  
 
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS  
EVENING...  
 
* IMPACTS: LOW HUMIDITIES AND STRONG GUSTY WINDS WILL CREATE  
ERRATIC FIRE BEHAVIOR AND NEW FIRE STARTS.  
 
* AFFECTED AREA:  
IN CENTRAL WY...FIRE WEATHER ZONE 289.  
 
* WIND: WEST 20 TO 30 MPH WITH GUSTS UP TO 45 MPH.  
 
* HUMIDITY: AS LOW AS 12 PERCENT.  
 
* COUNTIES AFFECTED:  
IN CENTRAL WY...FREMONT...NATRONA.  
IN SOUTHWEST WY...SWEETWATER.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE  
EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG  
WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN  
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.  
 

 
 

 
 
WYZ283-260200-  
/O.CON.KRIW.FW.W.0006.000000T0000Z-190826T0200Z/  
UPPER WIND RIVER BASIN/WIND RIVER BASIN-  
207 PM MDT SUN AUG 25 2019  
 
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS  
EVENING...  
 
* IMPACTS: LOW HUMIDITIES AND STRONG GUSTY WINDS WILL CREATE  
ERRATIC FIRE BEHAVIOR AND NEW FIRE STARTS.  
 
* AFFECTED AREA:  
IN CENTRAL WY...FIRE WEATHER ZONE 283.  
 
* WIND: WEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH.  
 
* HUMIDITY: AS LOW AS 12 PERCENT.  
 
* COUNTIES AFFECTED:  
IN CENTRAL WY...FREMONT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE  
EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG  
WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN  
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.  
 

 
 

 
 
WYZ280-300-260200-  
/O.CON.KRIW.FW.W.0006.000000T0000Z-190826T0200Z/  
NATRONA COUNTY/CASPER BLM-CASPER MOUNTAIN-  
207 PM MDT SUN AUG 25 2019  
 
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS  
EVENING...  
 
* IMPACTS: LOW HUMIDITIES AND STRONG GUSTY WINDS WILL CREATE  
ERRATIC FIRE BEHAVIOR AND NEW FIRE STARTS.  
 
* AFFECTED AREA:  
IN CENTRAL WY...FIRE WEATHER ZONES 280 AND 300.  
 
* WIND: WEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.  
 
* HUMIDITY: AS LOW AS 11 PERCENT.  
 
* COUNTIES AFFECTED:  
IN CENTRAL WY...NATRONA.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE  
EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG  
WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN  
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.  
 

 
 

 
 
HTTP://WEATHER.GOV/RIVERTON  
 
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