Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Freeze Warning |
| Area(s): | Cody Foothills; North Bighorn Basin; Southwest Bighorn Basin; Southeast Bighorn Basin; Northeast Johnson County; Southeast Johnson County; Wind River Basin; Lander Foothills; Natrona County Lower Elevations |
| Effective: | 2026-05-05 @ 1:23 pm -> 2026-05-06 @ 10:00 am |
| Onset: | 2026-05-06 @ 2:00 am -> 2026-05-06 @ 10:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-05 @ 1:23 pm |
| Headline: | Freeze Warning issued May 5 at 12:23PM MDT until May 6 at 9:00AM MDT by NWS Riverton WY |
| Description: |
* WHAT...Hard freezing temperatures ranging from 22 F to 28 F degrees. * WHERE...Lander Foothills, Natrona County Lower Elevations, Southwest Bighorn Basin, Wind River Basin, Northeast Johnson County, Southeast Bighorn Basin, Southeast Johnson County, Cody Foothills, and North Bighorn Basin. * WHEN...From 1 AM to 9 AM MDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation, and possibly damage unprotected outdoor plumbing. |
| Alert: | Winter Weather Advisory |
| Area(s): | Green Mountains and Rattlesnake Range; East Sweetwater County |
| Effective: | 2026-05-05 @ 1:22 pm -> 2026-05-06 @ 8:00 am |
| Onset: | 2026-05-05 @ 7:00 pm -> 2026-05-06 @ 8:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-05 @ 1:22 pm |
| Headline: | Winter Weather Advisory issued May 5 at 12:22PM MDT until May 6 at 7:00AM MDT by NWS Riverton WY |
| Description: |
* 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. |
| Alert: | Winter Weather Advisory |
| Area(s): | Bighorn Mountains Southeast; Wind River Mountains East |
| Effective: | 2026-05-05 @ 1:22 pm -> 2026-05-06 @ 2:00 am |
| Onset: | 2026-05-05 @ 1:22 pm -> 2026-05-06 @ 2:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-05 @ 1:22 pm |
| Headline: | Winter Weather Advisory issued May 5 at 12:22PM MDT until May 6 at 1:00AM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow. Total snow accumulations between 8 and 12 inches for South Pass and Powder River Pass. Total snow accumulations for central portions of the Wind River Mountains of 12 to 18 inches. Winds gusting as high as 30 to 40 mph. * WHERE...Wind River Mountains East and Bighorn Mountains Southeast. * WHEN...Until 1 AM MDT Wednesday. * IMPACTS...Travel could be difficult, especially Tuesday afternoon. The hazardous conditions could impact the Tuesday morning and evening commutes over South Pass and Powder River Pass. Falling snow combined with wind gusts around 30 to 40 mph will lead to reductions in visibility. |
| Alert: | Winter Storm Warning |
| Area(s): | South Laramie Range; South Laramie Range Foothills |
| Effective: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 1:00 pm |
| Onset: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-05 @ 1:14 pm |
| Headline: | Winter Storm Warning issued May 5 at 12:14PM MDT until May 6 at 12:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Heavy snow. Additional snow accumulations between 7 and 12 inches. Another band of enhanced snowfall could produce isolated higher amounts. * WHERE...South Laramie Range and Foothills including the Interstate 80 Summit between Cheyenne and Laramie. * WHEN...Until noon MDT Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. The weight of the heavy, wet snow on tree limbs and powerlines and could cause sporadic power outages. |
| Alert: | Winter Storm Warning |
| Area(s): | North Snowy Range Foothills |
| Effective: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 1:00 pm |
| Onset: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-05 @ 1:14 pm |
| Headline: | Winter Storm Warning issued May 5 at 12:14PM MDT until May 6 at 12:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Heavy snow. Additional snow accumulations between 4 and 10 inches. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80. * WHEN...Until noon MDT Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. The weight of the heavy, wet snow on tree limbs and powerlines and could cause sporadic power outages. |
| Alert: | Winter Storm Warning |
| Area(s): | Snowy Range |
| Effective: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 1:00 pm |
| Onset: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-05 @ 1:14 pm |
| Headline: | Winter Storm Warning issued May 5 at 12:14PM MDT until May 6 at 12:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Heavy snow. Additional snow accumulations between 8 and 14 inches. The higher totals will be mainly above 9000 ft in elevation and on the northern and eastern sides of the range. * WHERE...Snowy Range. * WHEN...Until noon MDT Wednesday. * 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): | Kimball; East Laramie County |
| Effective: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 10:00 am |
| Onset: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 7:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-05 @ 1:14 pm |
| Headline: | Winter Weather Advisory issued May 5 at 12:14PM MDT until May 6 at 9:00AM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Snow. Additional snow accumulations between 1 and 3 inches. * WHERE...In Nebraska, Kimball County. In Wyoming, East Laramie County. * WHEN...Until 9 AM MDT Wednesday. * IMPACTS...Plan on slushy and slick road conditions. The hazardous conditions could impact the commutes on Tuesday morning and evening, and on Wednesday morning. In addition, the weight of the heavy, wet snow on tree limbs could cause tree damage and bring down power lines. |
| Alert: | Winter Storm Warning |
| Area(s): | Central Laramie County |
| Effective: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 10:00 am |
| Onset: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-05 @ 1:14 pm |
| Headline: | Winter Storm Warning issued May 5 at 12:14PM MDT until May 6 at 9:00AM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Heavy snow. Additional snow accumulations between 4 and 7 inches. * WHERE...Central Laramie County. * WHEN...Until 9 AM MDT Wednesday. * IMPACTS...The weight of the heavy, wet snow on tree limbs may cause tree damage and bring down power lines. Travel could be very difficult. The hazardous conditions could impact the morning and evening commutes on Tuesday, and the morning commute on Wednesday. |
| Alert: | Winter Weather Advisory |
| Area(s): | Central Laramie Range and Southwest Platte County |
| Effective: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 10:00 am |
| Onset: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 7:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-05 @ 1:14 pm |
| Headline: | Winter Weather Advisory issued May 5 at 12:14PM MDT until May 6 at 9:00AM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Snow. Additional snow accumulations between 1 and 3 inches in the lower elevations near the I-25 corridor. Additional snow accumulations between 4 and 10 inches in the central Laramie Range above 5500 feet in elevation. * WHERE...Central Laramie Range and Southwest Platte County. * WHEN...Until 9 AM MDT Wednesday. * IMPACTS...The weight of the heavy, wet snow on tree limbs may cause tree damage and bring down power lines. Travel could be very difficult. The hazardous conditions could impact the morning and evening commutes on Tuesday, and the morning commute on Wednesday. |
| Alert: | Winter Weather Advisory |
| Area(s): | North Laramie Range |
| Effective: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 10:00 am |
| Onset: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 7:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-05 @ 1:14 pm |
| Headline: | Winter Weather Advisory issued May 5 at 12:14PM MDT until May 6 at 9:00AM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Snow. Additional snow accumulations between 3 and 7 inches. Locally higher amounts expected over 7500 feet in elevation. * WHERE...North Laramie Range. * WHEN...Until 9 AM MDT Wednesday. * 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): | Ferris/Seminoe/Shirley Mountains; Central Carbon County |
| Effective: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 10:00 am |
| Onset: | 2026-05-05 @ 7:00 pm -> 2026-05-06 @ 7:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-05 @ 1:14 pm |
| Headline: | Winter Weather Advisory issued May 5 at 12:14PM MDT until May 6 at 9:00AM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Snow expected. Additional snow accumulations between 1 and 3 inches. Winds gusting as high as 40 mph. * WHERE...Central Carbon County and Ferris/Seminoe/Shirley Mountains. * WHEN...From 6 PM this evening to 9 AM MDT Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning commute. In addition, the weight of the heavy, wet snow on tree limbs combined with gusty winds could cause tree damage and bring down power lines. |
| Alert: | Winter Weather Advisory |
| Area(s): | Shirley Basin |
| Effective: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 10:00 am |
| Onset: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 7:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-05 @ 1:14 pm |
| Headline: | Winter Weather Advisory issued May 5 at 12:14PM MDT until May 6 at 9:00AM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Snow. Additional snow accumulations between 1 and 3 inches. * WHERE...Shirley Basin and Laramie Valley. * WHEN...Until 9 AM MDT Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. |
| Alert: | Winter Weather Advisory |
| Area(s): | Sierra Madre Range |
| Effective: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 10:00 am |
| Onset: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 7:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-05 @ 1:14 pm |
| Headline: | Winter Weather Advisory issued May 5 at 12:14PM MDT until May 6 at 9:00AM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Snow. Additional snow accumulations up to 9 inches mainly above 8000 feet in elevation. Winds gusting as high as 40 mph. * WHERE...Sierra Madre Range. * WHEN...Until 9 AM MDT Wednesday. * 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 Storm Warning |
| Area(s): | Laramie Valley |
| Effective: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 10:00 am |
| Onset: | 2026-05-05 @ 1:14 pm -> 2026-05-06 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-05 @ 1:14 pm |
| Headline: | Winter Storm Warning issued May 5 at 12:14PM MDT until May 6 at 9:00AM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Heavy snow. Additional snow accumulations between 2 and 4 inches for the town of Laramie. Total snow accumulations between 7 and 11 inches are possible in the southern and western sides of the Laramie Valley. * WHERE...Laramie Valley. * WHEN...Until 9 AM MDT Wednesday. * IMPACTS...The weight of the heavy, wet snow on tree limbs may cause tree damage and bring down power lines. Travel could be very difficult. The hazardous conditions could impact the morning and evening commutes on Tuesday, and the morning commute on Wednesday. |