WWUS85 KRIW 210723
RFWRIW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
123 AM MDT Tue Apr 21 2026

WYZ275-276-280>283-285-287-289-300-220000-
/O.NEW.KRIW.FW.A.0005.260422T1500Z-260423T0200Z/
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-
Owl Creek Mountains-Granite/Green/Ferris/Rattlesnake Mountains-
Casper Mountain-
123 AM MDT Tue Apr 21 2026

...FIRE WEATHER WATCH IN EFFECT FROM LATE WEDNESDAY MORNING
THROUGH WEDNESDAY EVENING...

The National Weather Service in Riverton has issued a Fire Weather
Watch, which is in effect from late Wednesday morning through
Wednesday evening.

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

* AFFECTED AREA:
  In Central WY Fire Zones...280...283...285...289...300.
  In North Central WY Fire Zones...275...276...281...282...287.

* COUNTIES AFFECTED:
  In Central WY...Fremont...Natrona.
  In North Central WY...Big Horn...Hot Springs...Johnson...Park
                        Washakie.
  In Southwest WY...Sweetwater.

* WIND: Southwest 25 to 35 mph with gusts up to 55 mph.

* HUMIDITY: As low as 10 to 15 percent.

* ADDITIONAL DETAILS: While wind will not be as strong as on
  Wednesday, elevated to near critical fire weather conditions will
  be seen today across much of the same area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible Red
Flag Warnings.

&&

$$

http://weather.gov/riverton