Sweetwater County Emergency Management

05/13/2026

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR THE FOLLOWING AREAS

IN WYOMING THIS WATCH INCLUDES 6 COUNTIES

IN CENTRAL WYOMING

FREMONT

IN NORTHWEST WYOMING

PARK TETON

IN SOUTH CENTRAL WYOMING

SWEETWATER

IN WEST CENTRAL WYOMING

LINCOLN SUBLETTE

THIS INCLUDES THE CITIES OF AFTON, BIG PINEY, CODY, COKEVILLE,
DUBOIS, GREEN RIVER, JACKSON, KEMMERER, LANDER, PINEDALE, POWELL,
RIVERTON, AND ROCK SPRINGS.

05/13/2026

As promised, here is the video briefing with our thoughts about the possible severe thunderstorms and near critical fire weather across western and central Wyoming.

As usual, click in the comments for the video.

05/10/2026

The Sweetwater Amateur Radio Club is inviting residents to witness and participate in an emergency communications preparedness exercise during the nationwide ARRL Field Day.

The event will take place Saturday, June 27 through Sunday, June 28, at the Western Wyoming Community College – Green River Campus.
Field Day is the largest amateur radio emergency communications exercise in the United States and demonstrates how volunteer radio operators can provide critical communications during disasters, power outages, and emergencies when traditional systems fail.

Community members are encouraged to stop by, learn about amateur radio, observe live radio operations, and speak with local operators about emergency preparedness and public service communications.

GREEN RIVER -- While most people depend on a smartphone in an emergency, the Sweetwater Amateur Radio Club is preparing for the moment those phones don’t work anymore.

05/06/2026

Green Mountains and Rattlesnake Range-East Sweetwater County-
Including the cities of Jeffrey City and Wamsutter
518 AM MDT Wed May 6 2026
..WINTER WEATHER ADVISORY IS CANCELLED...

The threat has ended. Use caution as slick roads still possible for
the next few hours.

05/05/2026

Green Mountains and Rattlesnake Range-East Sweetwater County-
Including the cities of Wamsutter and Jeffrey City
115 AM MDT Tue May 5 2026
..WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 7 AM
MDT WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 4 inches.
Winds gusting as high as 30 to 35 mph.

* WHERE...Green Mountains and Rattlesnake Range and East Sweetwater
County.

* WHEN...From 6 PM this evening to 7 AM MDT Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Tuesday evening and Wednesday morning
commutes, especially along Highway 287 through Jeffrey City and
along the I-80 corridor for eastern Sweetwater County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .

For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info

04/19/2026

Natrona County/Casper BLM-
Granite/Green/Ferris/Rattlesnake Mountains-
1049 AM MDT Sun Apr 19 2026
..RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT MONDAY...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from 11 AM to 8 PM MDT Monday.

* IMPACTS: Low Humidities 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 15 to 25 mph with gusts up to 30 to 35 mph.

* HUMIDITY: As low as 10 to 15 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.

04/17/2026

04/17/2026

558 PM MDT Thu Apr 16 2026

The National Weather Service in Riverton has issued a

* Snow Squall Warning for...
Central Sweetwater County in south central Wyoming...

* Until 700 PM MDT.

* At 557 PM MDT, a dangerous snow squall was located from Rock
Springs to Bitter Creek Rest Area, which is 30 miles west of
Wamsutter, moving east at 10 mph.

HAZARD...Intense bursts of heavy snow. Gusty winds leading to
blowing snow and rapidly falling visibility. Wind gusts
up to 35 mph.

SOURCE...Radar and webcams.

IMPACT...Travel will become difficult and potentially dangerous
within minutes.

This includes Interstate 80 between mile markers 103 and 156.

Locations impacted include...
Rock Springs, Bitter Creek Rest Area, Reliance, Point Of Rocks,
Southwest Wyoming Regional Airport, Bitter Creek, and Sweetwater
County Fairgrounds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Reduce speed and turn on headlights! During snow squalls, the
visibility may suddenly drop to near zero in whiteout conditions.

04/16/2026

🔥 Free Wildfire Webinar Series 🔥

Don’t wait until the smoke is in the air - go check out the University of Wyoming Extension Service free webinar series.

🔥 Wildfire season is part of life in Wyoming. Being prepared makes the difference. Before summer gets here, make sure you know how to prepare, respond, and stay resilient.

👉 Register today for the Wyoming Wildfire Webinar Series
https://bit.ly/wildfire-webinar-series

✔️Join one session or all. Each week covers a different topic.

This free, multi-week webinar series features a new session each week, built for Wyoming residents and landowners.

📅 Thursdays, April 30 – June 4
🕕 6:00–7:30 PM MT
💻 Online (Zoom)

Each session covers real-world topics that matter across Wyoming, including:
✔️ Community-level wildfire planning
✔️ Livestock considerations
✔️ Landscape-scale fuels management
✔️ Wildfire smoke impacts on livestock and public health

You will hear directly from experts and walk away with practical steps you can actually use, whether you are protecting your home, land, or operation.

Can’t make it live? Recordings will be available after each session.

Know someone who should be thinking about wildfire this season? Tag them in the comments below 👇

04/15/2026

Wednesday 15 April 2026
..WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THURSDAY TO NOON MDT
FRIDAY...

* WHAT...Snow and wind expected. Total snow accumulations between 3
and 8 inches, with localized higher amounts possible across the
highest terrain. Winds gusting between 35 and 55 mph.

* WHERE...Casper Mountain and Green Mountains and Rattlesnake Range.

* WHEN...From 3 PM Thursday to noon MDT Friday.

* IMPACTS...Travel could be difficult, especially across US 287. The
hazardous conditions could impact travel Thursday evening through
Friday morning. Gusty winds and snow will cause limited visibility.

* ADDITIONAL DETAILS...Heavy snow bands and strong winds are
possible Thursday evening through Friday morning. If a heavy band
of snow does occur, expect instances of very low visibilities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .

For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .

04/13/2026

This weekend, the Sweetwater County Office of Emergency Management, alongside SC-CERT and our local HAM radio group, proudly represented our community at the Preparedness Fair.

From sharing emergency preparedness tips to handing out some great goodies, we had the chance to connect with residents and highlight the importance of being ready before disaster strikes.

Preparedness starts at home, but it’s strengthened through community. Sweetwater County continues to show what readiness and resilience look like.