42°54'N / 106°20'V / Altitudine 1617 m / 11:47 18.05.2026, America/Denver (UTC-6)
de la: 18.05.2026, 10:42
la: 18.05.2026, 18:00
* WHAT...Heavy snow. Additional snow accumulations 1 to 5 inches. Winds gusting as high as 50 mph. * WHERE...Green Mountains and Rattlesnake Range. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel will be difficult due to a combination of wind and falling snow.
Natrona
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.
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 .
NWS Riverton WY
18.05.2026, 10:42de la: 18.05.2026, 10:42
la: 18.05.2026, 18:00
* WHAT...Heavy snow expected. Total snow accumulations between 1 and 3 inches. Areas of higher amounts up to 4 inches between Hiland and Casper and for the south side of Casper. Winds gusting as high as 40 mph. * WHERE...Natrona County Lower Elevations. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel will be difficult, especially along US Highway 20/26 between Hiland and Casper. Heavy snow could break tree limbs as many trees have leafed out.
Natrona,Natrona County Lower ElevationsIf you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.
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 .NWS Riverton WY18.05.2026, 10:42de la: 18.05.2026, 10:42
la: 18.05.2026, 18:00
* WHAT...Heavy snow possible. Additional snow accumulations between 3 and 6 inches possible. Winds could gust as high as 40 mph. * WHERE...Casper Mountain. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel will be very difficult. Areas of blowing snow could significantly reduce visibility. Heavy snow could break tree limbs as many trees have leafed out.
NatronaIf you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.
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 .NWS Riverton WY18.05.2026, 10:42
de la: 18.05.2026, 03:14
la: 18.05.2026, 18:00
* WHAT...Snow expected. Additional snow accumulations up to 6 inches, with the higher amounts expected over southern end of the Bighorn Mountains. Winds gusting as high as 50 mph. * WHERE...Owl Creek and Bridger Mountains, Bighorn Mountains Southeast, Bighorn Mountains West, and Absaroka Mountains. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be difficult, especially over mountain passes such as Powder River Pass.
NatronaSlow 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 .NWS Riverton WY18.05.2026, 03:14