Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Winter Weather Advisory |
| Area(s): | Pryor/Northern Bighorn Mountains; Northeast Bighorn Mountains |
| Effective: | 2026-04-26 @ 9:42 am -> 2026-04-27 @ 1:00 pm |
| Onset: | 2026-04-26 @ 4:00 pm -> 2026-04-27 @ 9:45 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-04-26 @ 9:42 am |
| Headline: | Winter Weather Advisory issued April 26 at 8:42AM MDT until April 27 at 12:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 5 and 10 inches. Winds gusting as high as 35 mph. * WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming, Northeast Bighorn Mountains. * WHEN...From 3 PM this afternoon to noon MDT Monday. * IMPACTS...Travel on Highway 14 through the Bighorns could be very difficult. Outdoor recreation will be impacted by wintry conditions. |
| Alert: | Winter Weather Advisory |
| Area(s): | Northern Big Horn; Southern Rosebud; Southern Big Horn; Bighorn Canyon; Sheridan Foothills |
| Effective: | 2026-04-26 @ 9:42 am -> 2026-04-27 @ 1:00 pm |
| Onset: | 2026-04-26 @ 7:00 pm -> 2026-04-27 @ 9:45 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-04-26 @ 9:42 am |
| Headline: | Winter Weather Advisory issued April 26 at 8:42AM MDT until April 27 at 12:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 1 and 4 inches, greatest over the higher elevations. Winds gusting as high as 30 mph. * WHERE...In Montana, Bighorn Canyon, Northern Big Horn, Southern Big Horn, and Southern Rosebud. In Wyoming, Sheridan Foothills. * WHEN...From 6 PM this evening to noon MDT Monday. * IMPACTS...Plan on slushy road conditions and reduced visibility. This includes I-90 from Lodge Grass to Sheridan, and US-212 over Lame Deer Divide. The hazardous conditions will impact the Monday morning commute. |
| Alert: | Dense Fog Advisory |
| Area(s): | South Laramie Range |
| Effective: | 2026-04-26 @ 8:27 am -> 2026-04-26 @ 1:00 pm |
| Onset: | 2026-04-26 @ 8:27 am -> 2026-04-26 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-04-26 @ 8:27 am |
| Headline: | Dense Fog Advisory issued April 26 at 7:27AM MDT until April 26 at 12:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Visibility below one quarter mile in dense fog. * WHERE...South Laramie Range and foothills including the Interstate 80 Summit between Cheyenne and Laramie. * WHEN...Until noon MDT today. * IMPACTS...Low visibility could make driving conditions hazardous. |
| Alert: | Dense Fog Advisory |
| Area(s): | South Laramie Range Foothills |
| Effective: | 2026-04-26 @ 8:27 am -> 2026-04-26 @ 1:00 pm |
| Onset: | 2026-04-26 @ 8:27 am -> 2026-04-26 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-04-26 @ 8:27 am |
| Headline: | Dense Fog Advisory issued April 26 at 7:27AM MDT until April 26 at 12:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Visibility blow one quarter mile in dense fog. * WHERE...South Laramie Range and foothills including the Interstate 80 Summit between Cheyenne and Laramie. * WHEN...Until noon MDT today. * IMPACTS...Low visibility could make driving conditions hazardous. |
| Alert: | Dense Fog Advisory |
| Area(s): | Central Laramie County |
| Effective: | 2026-04-26 @ 8:27 am -> 2026-04-26 @ 1:00 pm |
| Onset: | 2026-04-26 @ 8:27 am -> 2026-04-26 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-04-26 @ 8:27 am |
| Headline: | Dense Fog Advisory issued April 26 at 7:27AM MDT until April 26 at 12:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Visibility below one quarter mile in dense fog. * WHERE...Central Laramie County, including the city of Cheyenne. * WHEN...Until noon MDT today. * IMPACTS...Low visibility could make driving conditions hazardous. |
| Alert: | Special Weather Statement |
| Area(s): | Central Laramie County |
| Effective: | 2026-04-26 @ 6:54 am |
| Onset: | 2026-04-26 @ 6:54 am -> 2026-04-26 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-04-26 @ 6:54 am |
| Headline: | Special Weather Statement issued April 26 at 5:54AM MDT by NWS Cheyenne WY |
| Description: |
Observations and webcams along Interstate 80 are showing patchy, dense freezing fog, especially in Cheyenne. Poor visibility is expected to continue along Interstate 80 from Cheyenne through the Summit. Brief periods of improving visibility are possible, likely improving to 1 mile or greater then slowly dropping back to below half a mile. This is expected to continue through mid-day. Motorists are urged to use caution while traveling along Interstate 80. Be prepared for sudden drops in visibility and slick icy roadways on bridges and overpasses. |
| Alert: | Winter Weather Advisory |
| Area(s): | Sierra Madre Range; Snowy Range |
| Effective: | 2026-04-26 @ 1:31 am -> 2026-04-27 @ 7:00 am |
| Onset: | 2026-04-26 @ 1:31 am -> 2026-04-26 @ 7:15 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-04-26 @ 1:31 am |
| Headline: | Winter Weather Advisory issued April 26 at 12:31AM MDT until April 27 at 6:00AM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Snow expected. Total snow accumulations of 6 to 12 inches above 8500 feet. Heavy, wet snow possible. * WHERE...Sierra Madre Range and Snowy Range. * WHEN...Until 6 AM MDT Monday. * IMPACTS...Outdoor recreation could become dangerous to those caught unprepared for hazardous winter conditions. Hunters, hikers, and snowmobilers may become disoriented and lost due to low visibility in falling and blowing snow. |
| Alert: | Winter Weather Advisory |
| Area(s): | Bighorn Mountains West; Bighorn Mountains Southeast |
| Effective: | 2026-04-26 @ 12:14 am -> 2026-04-27 @ 10:00 am |
| Onset: | 2026-04-26 @ 4:00 pm -> 2026-04-26 @ 6:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-04-26 @ 12:14 am |
| Headline: | Winter Weather Advisory issued April 25 at 11:14PM MDT until April 27 at 9:00AM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 6 and 10 inches. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...From 3 PM Sunday to 9 AM MDT Monday. * IMPACTS...Travel could be difficult, especially for Powder River and Granite Passes. The hazardous conditions could impact the Monday morning commute. |
| Alert: | Winter Weather Advisory |
| Area(s): | Northeast Johnson County |
| Effective: | 2026-04-26 @ 12:14 am -> 2026-04-27 @ 10:00 am |
| Onset: | 2026-04-26 @ 7:00 pm -> 2026-04-26 @ 6:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-04-26 @ 12:14 am |
| Headline: | Winter Weather Advisory issued April 25 at 11:14PM MDT until April 27 at 9:00AM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow expected. Total snow accumulations of 1 to 3 inches. Winds gusting as high as 30 to 35 mph. * WHERE...Northeast Johnson County. * WHEN...From 6 PM Sunday to 9 AM MDT Monday. * IMPACTS...Plan on slippery road conditions, especially along Interstates 25 and 90 north and east of Buffalo. The hazardous conditions could impact the Monday morning commute. |