845
WWUS85 KRIW 170727
RFWRIW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
127 AM MDT Thu Jul 17 2025

WYZ283-288-180200-
/O.NEW.KRIW.FW.W.0005.250717T1800Z-250718T0200Z/
Upper Wind River Basin/Wind River Basin-
East Wind River Mountains/South Shoshone NF-
127 AM MDT Thu Jul 17 2025

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is 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 Zones 283 and 288.

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

* WIND: West 10 to 20 mph with gusts up to 35 mph. Higher gusty
  winds begin across Zone 288 and western Zone 283 and push east
  across Zone 283 by 3PM.

* HUMIDITY: As low as 13 percent.

* TEMPERATURES: Highs in the 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.

&&

$$

WYZ280-289-180200-
/O.NEW.KRIW.FW.W.0005.250717T1800Z-250718T0200Z/
Natrona County/Casper BLM-
Granite/Green/Ferris/Rattlesnake Mountains-
127 AM MDT Thu Jul 17 2025

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is 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 Zones 280 and 289.

* COUNTIES AFFECTED:
  In Central WY...Fremont...Natrona.
  In Southwest WY...Sweetwater.

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

* HUMIDITY: As low as 13 percent.

* TEMPERATURES: Highs in the upper 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.

&&

$$

WYZ277>279-180200-
/O.NEW.KRIW.FW.W.0005.250717T1800Z-250718T0200Z/
Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
127 AM MDT Thu Jul 17 2025

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from noon today to 8 PM MDT this
evening.

* IMPACTS: Low Humidities...Hot Temperatures...Strong Gusty
  Winds...and Dry Showers and Thunderstorms with gusty and erratic
  outflow winds exceeding 40 mph could cause erratic fire behavior.

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

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

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

* THUNDERSTORMS: Isolated chances between 1PM and 6PM across Zones
  277, 279, and far southern 278.

* HUMIDITY: As low as 14 percent.

* TEMPERATURES: Highs in the 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