Etna, Wyoming Weather Forecast Discussion

217
FXUS65 KRIW 082153
AFDRIW
Area Forecast Discussion
National Weather Service Riverton WY
353 PM MDT Mon Sep 8 2025
.KEY MESSAGES...
- 10 to 20 percent chances for showers and thunderstorms this
afternoon with most likely chances being along and east of the
Divide.
- Widespread elevated fire weather conditions are expected along the
Rock Springs to Casper Wind Corridor Monday through Thursday, with
focus on stronger winds Wednesday and Thursday.
- Afternoon and evening showers and thunderstorms are expected again
Tuesday through Friday.
- A weather system looks to bring cooler and wetter weather to the
region beginning Friday.
&&
.UPDATE...
Issued at 207 PM MDT Mon Sep 8 2025
CAMs continue to prog very isolated shower and thunderstorm activity
this afternoon across southern WY and along and east of the Divide.
With high pressure building across the area today, there is not much
instability or shear to work with, nor is there much moisture with
PWATs 

NWS RIW Office Area Forecast Discussion