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Fire Weather Warning 0020
Issued by the Riverton Forecast Office

Action Issued Starts Expiration
New 2026-08-07 02:13:22 2026-08-07 13:00:00 2026-08-07 22:00:00
New 2026-08-07 02:13:22 2026-08-07 13:00:00 2026-08-07 22:00:00
Continued 2026-08-07 13:28:22 2026-08-07 22:00:00
Continued 2026-08-07 13:28:22 2026-08-07 22:00:00
Expired 2026-08-07 21:50:40 2026-08-07 22:00:00
Expired 2026-08-07 21:50:40 2026-08-07 22:00:00


Action: New
Issued At: 2026-08-07 02:13:22

510 
WWUS85 KRIW 070712
RFWRIW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
112 AM MDT Fri Aug 7 2026

WYZ277>279-289-080300-
/O.NEW.KRIW.FW.W.0020.260807T1800Z-260808T0300Z/
Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Granite/Green/Ferris/Rattlesnake Mountains-
112 AM MDT Fri Aug 7 2026

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from noon today to 9 PM MDT this
evening.

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty 
  Winds could cause erratic fire behavior. 

* AFFECTED AREA: 
  In Central WY Fire Zone....289.
  In Southwest WY Fire Zones...277...279.
  In West Central WY Fire Zone....278.

* COUNTIES AFFECTED: 
  In Central WY...Fremont...Natrona.
  In Southwest WY...Sweetwater...Uinta.
  In West Central WY...Lincoln...Sublette.

* WIND: West 10 to 20 mph with gusts up to 30 mph.

* HUMIDITY: As low as 7 percent.

* TEMPERATURES: Highs in the 90s.

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.

&&

$$

WYZ288-080300-
/O.NEW.KRIW.FW.W.0020.260807T1800Z-260808T0300Z/
East Wind River Mountains/South Shoshone NF-
112 AM MDT Fri Aug 7 2026

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from noon today to 9 PM MDT this
evening.

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty 
  Winds could cause erratic fire behavior. 

* AFFECTED AREA: 
  In Central WY...Fire Weather Zone 288.

* COUNTIES AFFECTED: 
  In Central WY...Fremont.
  In West Central WY...Sublette.

* WIND: West 15 to 25 mph with gusts up to 35 mph.

* HUMIDITY: As low as 9 percent.

* TEMPERATURES: Highs in the upper 70s to mid 80s.

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


Action: New
Issued At: 2026-08-07 02:13:22

510 
WWUS85 KRIW 070712
RFWRIW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
112 AM MDT Fri Aug 7 2026

WYZ277>279-289-080300-
/O.NEW.KRIW.FW.W.0020.260807T1800Z-260808T0300Z/
Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Granite/Green/Ferris/Rattlesnake Mountains-
112 AM MDT Fri Aug 7 2026

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from noon today to 9 PM MDT this
evening.

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty 
  Winds could cause erratic fire behavior. 

* AFFECTED AREA: 
  In Central WY Fire Zone....289.
  In Southwest WY Fire Zones...277...279.
  In West Central WY Fire Zone....278.

* COUNTIES AFFECTED: 
  In Central WY...Fremont...Natrona.
  In Southwest WY...Sweetwater...Uinta.
  In West Central WY...Lincoln...Sublette.

* WIND: West 10 to 20 mph with gusts up to 30 mph.

* HUMIDITY: As low as 7 percent.

* TEMPERATURES: Highs in the 90s.

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.

&&

$$

WYZ288-080300-
/O.NEW.KRIW.FW.W.0020.260807T1800Z-260808T0300Z/
East Wind River Mountains/South Shoshone NF-
112 AM MDT Fri Aug 7 2026

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from noon today to 9 PM MDT this
evening.

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty 
  Winds could cause erratic fire behavior. 

* AFFECTED AREA: 
  In Central WY...Fire Weather Zone 288.

* COUNTIES AFFECTED: 
  In Central WY...Fremont.
  In West Central WY...Sublette.

* WIND: West 15 to 25 mph with gusts up to 35 mph.

* HUMIDITY: As low as 9 percent.

* TEMPERATURES: Highs in the upper 70s to mid 80s.

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


Action: Continued
Issued At: 2026-08-07 13:28:22

843 
WWUS85 KRIW 071827
RFWRIW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
1227 PM MDT Fri Aug 7 2026

WYZ277>279-289-081230-
/O.NEW.KRIW.FW.W.0021.260808T1700Z-260810T0300Z/
/O.CON.KRIW.FW.W.0020.000000T0000Z-260808T0300Z/
Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Granite/Green/Ferris/Rattlesnake Mountains-
1227 PM MDT Fri Aug 7 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...
...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 9 PM MDT
SUNDAY...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from 11 AM Saturday to 9 PM MDT
Sunday.

* IMPACTS: Low Humidities and Strong Gusty Winds could cause 
  erratic fire behavior. 

* AFFECTED AREA: 
  In Central WY Fire Zone....289.
  In Southwest WY Fire Zones...277...279.
  In West Central WY Fire Zone....278.

* COUNTIES AFFECTED: 
  In Central WY...Fremont...Natrona.
  In Southwest WY...Sweetwater...Uinta.
  In West Central WY...Lincoln...Sublette.

* WIND: West 10 to 20 mph with gusts up to 35 mph.

* HUMIDITY: As low as 8 percent. Humidity recovery each night will
  remain below 40 percent.

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.

&&

$$

WYZ288-081230-
/O.NEW.KRIW.FW.W.0021.260808T1700Z-260810T0300Z/
/O.CON.KRIW.FW.W.0020.000000T0000Z-260808T0300Z/
East Wind River Mountains/South Shoshone NF-
1227 PM MDT Fri Aug 7 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...
...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 9 PM MDT
SUNDAY...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from 11 AM Saturday to 9 PM MDT
Sunday.

* IMPACTS: Low Humidities and Strong Gusty Winds could cause 
  erratic fire behavior. 

* AFFECTED AREA: 
  In Central WY...Fire Weather Zone 288.

* COUNTIES AFFECTED: 
  In Central WY...Fremont.
  In West Central WY...Sublette.

* WIND: West 15 to 25 mph with gusts up to 40 mph.

* HUMIDITY: As low as 9 percent. Humidity recovery each night will
  remain below 40 percent.

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.

&&

$$

WYZ140-275-276-280>283-285>287-300-081230-
/O.NEW.KRIW.FW.W.0021.260808T1700Z-260810T0300Z/
Yellowstone National Park-North Bighorn Basin/Worland BLM-
Cody Foothills-Natrona County/Casper BLM-Johnson County/Casper BLM-
South Bighorn Basin/Worland BLM-
Upper Wind River Basin/Wind River Basin-South Bighorn Mountains-
Absaroka Mountains/North Shoshone NF-Owl Creek Mountains-
Casper Mountain-
1227 PM MDT Fri Aug 7 2026

...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 9 PM MDT
SUNDAY...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from 11 AM Saturday to 9 PM MDT
Sunday.

* IMPACTS: Low Humidities and Strong Gusty Winds could cause 
  erratic fire behavior. 

* AFFECTED AREA: 
  In Central WY Fire Zones...280...283...285...300.
  In North Central WY Fire Zones...275...276...281...282...287.
  In Northwest WY Fire Zones...140...286.

* COUNTIES AFFECTED: 
  In Central WY...Fremont...Natrona.
  In North Central WY...Big Horn...Hot Springs...Johnson...Park
                        Washakie.
  In Northwest WY...Yellowstone National Park.

* WIND: Northwest 10 to 20 mph with gusts up to 30 mph.

* HUMIDITY: As low as 8 percent. Humidity recovery each night remains
  below 40 percent.

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


Action: Continued
Issued At: 2026-08-07 13:28:22

843 
WWUS85 KRIW 071827
RFWRIW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
1227 PM MDT Fri Aug 7 2026

WYZ277>279-289-081230-
/O.NEW.KRIW.FW.W.0021.260808T1700Z-260810T0300Z/
/O.CON.KRIW.FW.W.0020.000000T0000Z-260808T0300Z/
Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Granite/Green/Ferris/Rattlesnake Mountains-
1227 PM MDT Fri Aug 7 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...
...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 9 PM MDT
SUNDAY...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from 11 AM Saturday to 9 PM MDT
Sunday.

* IMPACTS: Low Humidities and Strong Gusty Winds could cause 
  erratic fire behavior. 

* AFFECTED AREA: 
  In Central WY Fire Zone....289.
  In Southwest WY Fire Zones...277...279.
  In West Central WY Fire Zone....278.

* COUNTIES AFFECTED: 
  In Central WY...Fremont...Natrona.
  In Southwest WY...Sweetwater...Uinta.
  In West Central WY...Lincoln...Sublette.

* WIND: West 10 to 20 mph with gusts up to 35 mph.

* HUMIDITY: As low as 8 percent. Humidity recovery each night will
  remain below 40 percent.

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.

&&

$$

WYZ288-081230-
/O.NEW.KRIW.FW.W.0021.260808T1700Z-260810T0300Z/
/O.CON.KRIW.FW.W.0020.000000T0000Z-260808T0300Z/
East Wind River Mountains/South Shoshone NF-
1227 PM MDT Fri Aug 7 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...
...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 9 PM MDT
SUNDAY...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from 11 AM Saturday to 9 PM MDT
Sunday.

* IMPACTS: Low Humidities and Strong Gusty Winds could cause 
  erratic fire behavior. 

* AFFECTED AREA: 
  In Central WY...Fire Weather Zone 288.

* COUNTIES AFFECTED: 
  In Central WY...Fremont.
  In West Central WY...Sublette.

* WIND: West 15 to 25 mph with gusts up to 40 mph.

* HUMIDITY: As low as 9 percent. Humidity recovery each night will
  remain below 40 percent.

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.

&&

$$

WYZ140-275-276-280>283-285>287-300-081230-
/O.NEW.KRIW.FW.W.0021.260808T1700Z-260810T0300Z/
Yellowstone National Park-North Bighorn Basin/Worland BLM-
Cody Foothills-Natrona County/Casper BLM-Johnson County/Casper BLM-
South Bighorn Basin/Worland BLM-
Upper Wind River Basin/Wind River Basin-South Bighorn Mountains-
Absaroka Mountains/North Shoshone NF-Owl Creek Mountains-
Casper Mountain-
1227 PM MDT Fri Aug 7 2026

...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 9 PM MDT
SUNDAY...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from 11 AM Saturday to 9 PM MDT
Sunday.

* IMPACTS: Low Humidities and Strong Gusty Winds could cause 
  erratic fire behavior. 

* AFFECTED AREA: 
  In Central WY Fire Zones...280...283...285...300.
  In North Central WY Fire Zones...275...276...281...282...287.
  In Northwest WY Fire Zones...140...286.

* COUNTIES AFFECTED: 
  In Central WY...Fremont...Natrona.
  In North Central WY...Big Horn...Hot Springs...Johnson...Park
                        Washakie.
  In Northwest WY...Yellowstone National Park.

* WIND: Northwest 10 to 20 mph with gusts up to 30 mph.

* HUMIDITY: As low as 8 percent. Humidity recovery each night remains
  below 40 percent.

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


Action: Expired
Issued At: 2026-08-07 21:50:40

084 
WWUS85 KRIW 080250
RFWRIW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
850 PM MDT Fri Aug 7 2026

WYZ277>279-289-081300-
/O.EXP.KRIW.FW.W.0020.000000T0000Z-260808T0300Z/
/O.CON.KRIW.FW.W.0021.260808T1700Z-260810T0300Z/
Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Granite/Green/Ferris/Rattlesnake Mountains-
850 PM MDT Fri Aug 7 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM SATURDAY TO 9 PM
MDT SUNDAY...

* AFFECTED AREA: 
  In Central WY Fire Zone....289.
  In Southwest WY Fire Zones...277...279.
  In West Central WY Fire Zone....278.

* COUNTIES AFFECTED: 
  In Central WY...Fremont...Natrona.
  In Southwest WY...Sweetwater...Uinta.
  In West Central WY...Lincoln...Sublette.

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty 
  Winds could cause erratic fire behavior. 

* WIND: West 10 to 20 mph with gusts up to 35 mph.

* HUMIDITY: As low as 8 percent. Humidity recovery each night will
  remain below 40 percent.

* TEMPERATURES: Lows in the low 50s to low 60s. Highs in the upper
  80s to upper 90s.

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.

&&

$$

WYZ288-081300-
/O.EXP.KRIW.FW.W.0020.000000T0000Z-260808T0300Z/
/O.CON.KRIW.FW.W.0021.260808T1700Z-260810T0300Z/
East Wind River Mountains/South Shoshone NF-
850 PM MDT Fri Aug 7 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM SATURDAY TO 9 PM
MDT SUNDAY...

* AFFECTED AREA: 
  In Central WY...Fire Weather Zone 288.

* COUNTIES AFFECTED: 
  In Central WY...Fremont.
  In West Central WY...Sublette.

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty 
  Winds could cause erratic fire behavior. 

* WIND: West 10 to 20 mph with gusts up to 35 mph.

* HUMIDITY: As low as 9 percent. Humidity recovery each night will
  remain below 40 percent.

* TEMPERATURES: Lows in the upper 40s to low 60s. Highs in the low 
  60s to low 80s.

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.

&&

$$

WYZ140-275-276-280>283-285>287-300-081300-
/O.CON.KRIW.FW.W.0021.260808T1700Z-260810T0300Z/
Yellowstone National Park-North Bighorn Basin/Worland BLM-
Cody Foothills-Natrona County/Casper BLM-Johnson County/Casper BLM-
South Bighorn Basin/Worland BLM-
Upper Wind River Basin/Wind River Basin-South Bighorn Mountains-
Absaroka Mountains/North Shoshone NF-Owl Creek Mountains-
Casper Mountain-
850 PM MDT Fri Aug 7 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM SATURDAY TO 9 PM
MDT SUNDAY...

* AFFECTED AREA: 
  In Central WY Fire Zones...280...283...285...300.
  In North Central WY Fire Zones...275...276...281...282...287.
  In Northwest WY Fire Zones...140...286.

* COUNTIES AFFECTED: 
  In Central WY...Fremont...Natrona. 
  In North Central WY...Big Horn...Hot Springs...Johnson...Park
  ...Washakie. 
  In Northwest WY...Yellowstone National Park.

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty 
  Winds could cause erratic fire behavior. 

* WIND: Northwest 10 to 20 mph with gusts up to 30 mph.

* HUMIDITY: As low as 8 percent. Humidity recovery each night will
  remain below 40 percent.

* TEMPERATURES: Highs in the upper 70s to middle 80s at higher
  elevations and middle 90s to upper 90s at lower elevations. Lows
  in the upper 40s to upper 50s at higher elevations and upper 50s
  to low 60s at lower elevations.

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


Action: Expired
Issued At: 2026-08-07 21:50:40

084 
WWUS85 KRIW 080250
RFWRIW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
850 PM MDT Fri Aug 7 2026

WYZ277>279-289-081300-
/O.EXP.KRIW.FW.W.0020.000000T0000Z-260808T0300Z/
/O.CON.KRIW.FW.W.0021.260808T1700Z-260810T0300Z/
Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Granite/Green/Ferris/Rattlesnake Mountains-
850 PM MDT Fri Aug 7 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM SATURDAY TO 9 PM
MDT SUNDAY...

* AFFECTED AREA: 
  In Central WY Fire Zone....289.
  In Southwest WY Fire Zones...277...279.
  In West Central WY Fire Zone....278.

* COUNTIES AFFECTED: 
  In Central WY...Fremont...Natrona.
  In Southwest WY...Sweetwater...Uinta.
  In West Central WY...Lincoln...Sublette.

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty 
  Winds could cause erratic fire behavior. 

* WIND: West 10 to 20 mph with gusts up to 35 mph.

* HUMIDITY: As low as 8 percent. Humidity recovery each night will
  remain below 40 percent.

* TEMPERATURES: Lows in the low 50s to low 60s. Highs in the upper
  80s to upper 90s.

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.

&&

$$

WYZ288-081300-
/O.EXP.KRIW.FW.W.0020.000000T0000Z-260808T0300Z/
/O.CON.KRIW.FW.W.0021.260808T1700Z-260810T0300Z/
East Wind River Mountains/South Shoshone NF-
850 PM MDT Fri Aug 7 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM SATURDAY TO 9 PM
MDT SUNDAY...

* AFFECTED AREA: 
  In Central WY...Fire Weather Zone 288.

* COUNTIES AFFECTED: 
  In Central WY...Fremont.
  In West Central WY...Sublette.

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty 
  Winds could cause erratic fire behavior. 

* WIND: West 10 to 20 mph with gusts up to 35 mph.

* HUMIDITY: As low as 9 percent. Humidity recovery each night will
  remain below 40 percent.

* TEMPERATURES: Lows in the upper 40s to low 60s. Highs in the low 
  60s to low 80s.

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.

&&

$$

WYZ140-275-276-280>283-285>287-300-081300-
/O.CON.KRIW.FW.W.0021.260808T1700Z-260810T0300Z/
Yellowstone National Park-North Bighorn Basin/Worland BLM-
Cody Foothills-Natrona County/Casper BLM-Johnson County/Casper BLM-
South Bighorn Basin/Worland BLM-
Upper Wind River Basin/Wind River Basin-South Bighorn Mountains-
Absaroka Mountains/North Shoshone NF-Owl Creek Mountains-
Casper Mountain-
850 PM MDT Fri Aug 7 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM SATURDAY TO 9 PM
MDT SUNDAY...

* AFFECTED AREA: 
  In Central WY Fire Zones...280...283...285...300.
  In North Central WY Fire Zones...275...276...281...282...287.
  In Northwest WY Fire Zones...140...286.

* COUNTIES AFFECTED: 
  In Central WY...Fremont...Natrona. 
  In North Central WY...Big Horn...Hot Springs...Johnson...Park
  ...Washakie. 
  In Northwest WY...Yellowstone National Park.

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty 
  Winds could cause erratic fire behavior. 

* WIND: Northwest 10 to 20 mph with gusts up to 30 mph.

* HUMIDITY: As low as 8 percent. Humidity recovery each night will
  remain below 40 percent.

* TEMPERATURES: Highs in the upper 70s to middle 80s at higher
  elevations and middle 90s to upper 90s at lower elevations. Lows
  in the upper 40s to upper 50s at higher elevations and upper 50s
  to low 60s at lower elevations.

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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