Red Flag Warning
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
396 WWUS85 KRIW 130809 RFWRIW URGENT - FIRE WEATHER MESSAGE National Weather Service Riverton WY 209 AM MDT Wed Aug 13 2025 WYZ277-278-140200- /O.CON.KRIW.FW.W.0010.250813T1800Z-250814T0200Z/ Lincoln and Uinta Counties/Lower Elevations- Upper Green River Basin/Rock Springs BLM- 209 AM MDT Wed Aug 13 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING... * AFFECTED AREA: In Southwest WY Fire Zone....277. In West Central WY Fire Zone....278. * COUNTIES AFFECTED: 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 30 mph. * HUMIDITY: As low as 10 percent. * TEMPERATURES: Highs in the mid 80s to around 90. 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. && $$ WYZ279-280-289-300-140200- /O.CON.KRIW.FW.W.0010.250813T1800Z-250815T0200Z/ Sweetwater County/Rock Springs BLM/Flaming Gorge NRA- Natrona County/Casper BLM- Granite/Green/Ferris/Rattlesnake Mountains-Casper Mountain- 209 AM MDT Wed Aug 13 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM MDT THURSDAY... * AFFECTED AREA: In Central WY Fire Zones...280...289...300. In Southwest WY Fire Zone....279. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In Southwest WY...Sweetwater. * IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds could cause erratic fire behavior. Conditions will improve overnight as winds decrease and humidities recover, however critical fire weather conditions will then return by around 1200 Thursday afternoon. * WIND: West 10 to 20 mph with gusts up to 30 mph on Wednesday afternoon, becoming light overnight, then west-southwest 10 to 15 mph with gusts to around 25 mph on Thursday. * HUMIDITY: As low as 8 percent. * TEMPERATURES: Highs in the upper 80s, with low 90s for Zone 280. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ WYZ283-140200- /O.CON.KRIW.FW.W.0010.250813T1800Z-250814T0200Z/ Upper Wind River Basin/Wind River Basin- 209 AM MDT Wed Aug 13 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 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 283. * COUNTIES AFFECTED: In Central WY...Fremont. * WIND: West 10 to 20 mph with gusts up to 35 mph. Strongest winds will occur around Dubois, with lighter winds around 10 to 15 mph with gusts to around 20 to 25 mph across central and eastern portions of the Wind River Basin. * HUMIDITY: As low as 12 percent. * TEMPERATURES: Highs in the lower 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. && $$ WYZ286-288-140200- /O.CON.KRIW.FW.W.0010.250813T1800Z-250814T0200Z/ Absaroka Mountains/North Shoshone NF- East Wind River Mountains/South Shoshone NF- 209 AM MDT Wed Aug 13 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING... * IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds...and Increasing Thunderstorm Activity could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zone....288. In Northwest WY Fire Zone....286. * COUNTIES AFFECTED: In Central WY...Fremont. In North Central WY...Hot Springs...Park. In West Central WY...Sublette. * WIND: West 15 to 25 mph with gusts 30 to 40 mph. * THUNDERSTORMS: There is a 20 to 40 percent chance of thunderstorms, with gusty winds and frequent lightning being the main threats. * HUMIDITY: Higher elevations will see RHs around 20 percent, however lower valleys will see RHs near 15 percent Wednesday afternoon. * TEMPERATURES: Highs in the upper 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ WYZ414>416-140200- /O.CON.KRIW.FW.W.0010.250813T1800Z-250814T0200Z/ 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- 209 AM MDT Wed Aug 13 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING... * IMPACTS: Low Humidities...Very Dry Fuels...Hot Temperatures...and Strong Gusty Winds...and Increasing Thunderstorm Activity could cause erratic fire behavior. * AFFECTED AREA: In Northwest WY Fire Zone....415. In West Central WY Fire Zones...414...416. * COUNTIES AFFECTED: In Central WY...Fremont. In North Central WY...Park. In West Central WY...Lincoln...Sublette...Teton. * WIND: West 10 to 20 mph with gusts up to 35 mph. * THUNDERSTORMS: There is a 20 to 40 percent chance of thunderstorms, with gusty winds and frequent lightning being the main threats. * HUMIDITY: Higher elevations will see RHs around 20 percent, however lower valleys will see RHs around 13 to 17 percent Wednesday afternoon. * TEMPERATURES: Highs in the upper 70s. 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