Jackson Hole, Wyoming
Regional Weather Alerts
| Alert: | Winter Weather Advisory |
| Area(s): | Pryor/Northern Bighorn Mountains; Northeast Bighorn Mountains |
| Effective: | 2026-05-16 @ 6:55 pm -> 2026-05-17 @ 7:00 pm |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 1:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-05-16 @ 6:55 pm |
| Headline: | Winter Weather Advisory issued May 16 at 5:55PM MDT until May 18 at 12:00PM MDT by NWS Billings MT |
| Description: |
* WHAT...Snow and blowing snow expected. Total snow accumulations between 5 and 10 inches. Winds gusting as high as 45 mph. * WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming, Northeast Bighorn Mountains. * WHEN...From 6 PM Sunday to noon MDT Monday. * IMPACTS...Snow and blowing snow will impact back country recreation and travel along Highway 14 through the Bighorn Mountains. |
| Alert: | Winter Weather Advisory |
| Area(s): | Western Uinta Mountains; Southwest Wyoming |
| Effective: | 2026-05-16 @ 6:19 pm -> 2026-05-17 @ 9:30 am |
| Onset: | 2026-05-17 @ 1:00 pm -> 2026-05-19 @ 1:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Salt Lake City UT on 2026-05-16 @ 6:19 pm |
| Headline: | Winter Weather Advisory issued May 16 at 5:19PM MDT until May 19 at 12:00AM MDT by NWS Salt Lake City UT |
| Description: |
* WHAT...Snow expected. Total snow accumulations of 6 to 12 inches for the Western Uinta Mountains and 2 to 5 inches for southwest Wyoming. * WHERE...In Utah, Western Uinta Mountains. In Wyoming, Southwest Wyoming. * WHEN...From noon Sunday to midnight MDT Monday Night. * IMPACTS...Travel could be difficult at times. Traction law restrictions may be enacted. |
| Alert: | Winter Storm Watch |
| Area(s): | North Laramie Range; Snowy Range |
| Effective: | 2026-05-16 @ 1:10 pm -> 2026-05-17 @ 7:15 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-05-16 @ 1:10 pm |
| Headline: | Winter Storm Watch issued May 16 at 12:10PM MDT until May 18 at 6:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Heavy snow possible. Total snow accumulations over 12 inches possible. Winds could gust as high as 30 to 40 mph. * WHERE...Snowy Range and North Laramie Range. * WHEN...From Sunday evening through Monday afternoon. * IMPACTS...Heavy wet snow. Roads, and especially bridges, will likely become slick and hazardous. |
| Alert: | Winter Storm Watch |
| Area(s): | South Laramie Range |
| Effective: | 2026-05-16 @ 1:10 pm -> 2026-05-17 @ 7:15 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-05-16 @ 1:10 pm |
| Headline: | Winter Storm Watch issued May 16 at 12:10PM MDT until May 18 at 6:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Heavy snow possible. Total snow accumulations over 6 inches possible. Winds could gust as high as 30 to 40 mph with some drifting snow expected. * WHERE...South Laramie Range including the Interstate 80 Summit between Cheyenne and Laramie. * WHEN...From Sunday evening through Monday afternoon. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. |
| Alert: | Winter Storm Watch |
| Area(s): | Central Carbon County |
| Effective: | 2026-05-16 @ 1:10 pm -> 2026-05-17 @ 7:15 am |
| Onset: | 2026-05-18 @ 1:00 am -> 2026-05-18 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-05-16 @ 1:10 pm |
| Headline: | Winter Storm Watch issued May 16 at 12:10PM MDT until May 18 at 6:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Heavy snow possible. Total snow accumulations over 6 inches possible. Winds could gust as high as 45 mph. * WHERE...Central Carbon County. * WHEN...From late Sunday night through Monday afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning and evening commutes. Gusty winds could bring down tree branches. |
| Alert: | Winter Storm Watch |
| Area(s): | Ferris/Seminoe/Shirley Mountains; North Snowy Range Foothills |
| Effective: | 2026-05-16 @ 1:10 pm -> 2026-05-17 @ 7:15 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-05-16 @ 1:10 pm |
| Headline: | Winter Storm Watch issued May 16 at 12:10PM MDT until May 18 at 6:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Heavy snow possible. Total snow accumulations over 6 inches possible. Winds could gust as high as 35 to 45 mph. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80, and Ferris/Seminoe/Shirley Mountains. * WHEN...From Sunday evening through Monday afternoon. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Scattered power outages possible due to heavy wet snow on trees and powerlines. |
| Alert: | Winter Storm Warning |
| Area(s): | East Sweetwater County |
| Effective: | 2026-05-16 @ 12:52 pm -> 2026-05-17 @ 8:30 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-16 @ 12:52 pm |
| Headline: | Winter Storm Warning issued May 16 at 11:52AM MDT until May 18 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Heavy snow expected. Total snow accumulations between 3 and 6 inches. Winds gusting as high as 50 mph. * WHERE...East Sweetwater County. * WHEN...From 6 PM Sunday to 6 PM MDT Monday. * IMPACTS...Travel could be difficult, especially along Interstate 80. The hazardous conditions could impact the Monday morning and evening commutes. |
| Alert: | Winter Storm Warning |
| Area(s): | Green Mountains and Rattlesnake Range |
| Effective: | 2026-05-16 @ 12:52 pm -> 2026-05-17 @ 8:30 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-16 @ 12:52 pm |
| Headline: | Winter Storm Warning issued May 16 at 11:52AM MDT until May 18 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Heavy snow possible. Total snow accumulations between 6 and 11 inches possible. Winds could gust as high as 50 mph. * WHERE...Green Mountains and Rattlesnake Range. * WHEN...From 6 PM Sunday to 6 PM MDT Monday. * IMPACTS...Travel could be difficult. The hazardous conditions could impact the Monday morning and evening commutes. |
| Alert: | Winter Weather Advisory |
| Area(s): | Upper Wind River Basin; Wind River Basin |
| Effective: | 2026-05-16 @ 12:52 pm -> 2026-05-17 @ 8:30 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-16 @ 12:52 pm |
| Headline: | Winter Weather Advisory issued May 16 at 11:52AM MDT until May 18 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 1 and 4 inches. Winds gusting as high as 45 mph. * WHERE...Upper Wind River Basin and Wind River Basin. * WHEN...From 6 PM Sunday to 6 PM MDT Monday. * IMPACTS...Travel could be difficult due to a combination of snow and wind. The hazardous conditions could impact the Monday morning commute. |
| Alert: | Winter Storm Warning |
| Area(s): | Casper Mountain |
| Effective: | 2026-05-16 @ 12:52 pm -> 2026-05-17 @ 8:30 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-16 @ 12:52 pm |
| Headline: | Winter Storm Warning issued May 16 at 11:52AM MDT until May 18 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Heavy snow possible. Total snow accumulations between 7 and 14 inches possible. Winds could gust as high as 40 mph. * WHERE...Casper Mountain. * WHEN...From 6 PM Sunday to 6 PM MDT Monday. * IMPACTS...Travel could be difficult. The hazardous conditions could impact the Monday morning and evening commutes. |
| Alert: | Winter Weather Advisory |
| Area(s): | Lander Foothills |
| Effective: | 2026-05-16 @ 12:52 pm -> 2026-05-17 @ 8:30 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-16 @ 12:52 pm |
| Headline: | Winter Weather Advisory issued May 16 at 11:52AM MDT until May 18 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 3 and 6 inches. * WHERE...Lander Foothills. * WHEN...From 6 PM Sunday to 6 PM MDT Monday. * IMPACTS...Travel could be difficult. The hazardous conditions could impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...There will likely be a steep gradient in snow totals in Lander town towards the mountains. Amounts will likely quickly change from 3 to 6 inches in town to 10 inches or more at Sinks Canyon. |
| Alert: | Winter Weather Advisory |
| Area(s): | Absaroka Mountains; Owl Creek and Bridger Mountains; Bighorn Mountains West; Bighorn Mountains Southeast |
| Effective: | 2026-05-16 @ 12:52 pm -> 2026-05-17 @ 8:30 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-16 @ 12:52 pm |
| Headline: | Winter Weather Advisory issued May 16 at 11:52AM MDT until May 18 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 4 and 8 inches, with 7 to 12 inches at the highest elevations of the southern Absaroka and southern 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...From 6 PM Sunday to 6 PM MDT Monday. * IMPACTS...Travel could be difficult, especially over mountain passes such as Powder River Pass. |
| Alert: | Winter Weather Advisory |
| Area(s): | Northeast Johnson County; Southeast Johnson County |
| Effective: | 2026-05-16 @ 12:52 pm -> 2026-05-17 @ 8:30 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-16 @ 12:52 pm |
| Headline: | Winter Weather Advisory issued May 16 at 11:52AM MDT until May 18 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow expected. Total snow accumulations up to 3 inches. Winds gusting as high as 50 mph. * WHERE...Northeast Johnson County and Southeast Johnson County. * WHEN...From 6 PM Sunday to 6 PM MDT Monday. * IMPACTS...Travel could be difficult due to a combination of snow and wind. The hazardous conditions could impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...Greatest snow totals will occur along the mountains and further southwards towards Kaycee. |
| Alert: | Winter Weather Advisory |
| Area(s): | Upper Green River Basin |
| Effective: | 2026-05-16 @ 12:52 pm -> 2026-05-17 @ 8:30 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-16 @ 12:52 pm |
| Headline: | Winter Weather Advisory issued May 16 at 11:52AM MDT until May 18 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow expected. Total snow accumulations 1 to 3. Winds gusting as high as 45 mph. * WHERE...Upper Green River Basin. * WHEN...From 6 PM Sunday to 6 PM MDT Monday. * IMPACTS...Travel could be difficult. The hazardous conditions could impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...Greatest impacts will be further south, towards Farson. Here, winds and snow totals will be greatest. |
| Alert: | Winter Weather Advisory |
| Area(s): | Cody Foothills; Southwest Bighorn Basin |
| Effective: | 2026-05-16 @ 12:52 pm -> 2026-05-17 @ 8:30 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-16 @ 12:52 pm |
| Headline: | Winter Weather Advisory issued May 16 at 11:52AM MDT until May 18 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow expected. Total snow accumulations 1 to 3 inches. Winds gusting as high as 55 mph. * WHERE...Southwest Bighorn Basin and Cody Foothills. * WHEN...From 6 PM Sunday to 6 PM MDT Monday. * IMPACTS...Travel could be difficult due to a combination of snow and wind. The hazardous conditions could impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...There is potential for a steep gradient in snow totals along the mountains, with snow totals quickly going from around 1 inch to 4 inches or more. |
| Alert: | Winter Storm Warning |
| Area(s): | Natrona County Lower Elevations |
| Effective: | 2026-05-16 @ 12:52 pm -> 2026-05-17 @ 8:30 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-16 @ 12:52 pm |
| Headline: | Winter Storm Warning issued May 16 at 11:52AM MDT until May 18 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Heavy snow expected. Total snow accumulations between 3 and 5 inches. Areas of higher amounts up to to 7 inches between Hiland and Casper. Winds gusting as high as 40 mph. * WHERE...Natrona County Lower Elevations. * WHEN...From 6 PM Sunday to 6 PM MDT Monday. * IMPACTS...Travel could be difficult. The hazardous conditions could impact the Monday morning and evening commutes. |
| Alert: | Winter Weather Advisory |
| Area(s): | Rock Springs and Green River; Flaming Gorge |
| Effective: | 2026-05-16 @ 12:52 pm -> 2026-05-17 @ 8:30 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-16 @ 12:52 pm |
| Headline: | Winter Weather Advisory issued May 16 at 11:52AM MDT until May 18 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 2 and 5 inches. Winds gusting as high as 45 mph. * WHERE...Flaming Gorge and Rock Springs and Green River. * WHEN...From 6 PM Sunday to 6 PM MDT Monday. * IMPACTS...Travel could be difficult, especially along Interstate 80. The hazardous conditions could impact the Monday morning and evening commutes. |
| Alert: | Winter Weather Advisory |
| Area(s): | Wind River Mountains West |
| Effective: | 2026-05-16 @ 12:52 pm -> 2026-05-17 @ 8:30 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-16 @ 12:52 pm |
| Headline: | Winter Weather Advisory issued May 16 at 11:52AM MDT until May 18 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 3 and 8 inches. Winds gusting as high as 50 mph. * WHERE...Wind River Mountains West. * WHEN...From 6 PM Sunday to 6 PM MDT Monday. * IMPACTS...Travel could be difficult, especially along South Pass. The hazardous conditions could impact the Monday morning and evening commutes. |
| Alert: | Winter Storm Warning |
| Area(s): | Wind River Mountains East |
| Effective: | 2026-05-16 @ 12:52 pm -> 2026-05-17 @ 8:30 am |
| Onset: | 2026-05-17 @ 7:00 pm -> 2026-05-18 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-05-16 @ 12:52 pm |
| Headline: | Winter Storm Warning issued May 16 at 11:52AM MDT until May 18 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Heavy snow possible. Total snow accumulations between 8 and 16 inches possible. Winds could gust as high as 50 mph. * WHERE...Wind River Mountains East. * WHEN...From 6 PM Sunday to 6 PM MDT Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning and evening commutes, including over South Pass. |