Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Winter Weather Advisory |
| Area(s): | North Laramie Range |
| Effective: | 2026-04-16 @ 6:19 am -> 2026-04-17 @ 4:00 pm |
| Onset: | 2026-04-16 @ 7:00 pm -> 2026-04-16 @ 8:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-04-16 @ 6:19 am |
| Headline: | Winter Weather Advisory issued April 16 at 5:19AM MDT until April 17 at 3:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 3 and 8 inches. Winds gusting as high as 45 mph. * WHERE...North Laramie Range. * WHEN...From 6 PM this evening to 3 PM MDT Friday. * 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; Shirley Basin; Central Carbon County; North Snowy Range Foothills; Southwest Carbon County; Upper North Platte River Basin |
| Effective: | 2026-04-16 @ 6:19 am -> 2026-04-17 @ 4:00 pm |
| Onset: | 2026-04-16 @ 7:00 pm -> 2026-04-16 @ 8:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-04-16 @ 6:19 am |
| Headline: | Winter Weather Advisory issued April 16 at 5:19AM MDT until April 17 at 3:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Snow, blowing snow, and reduced visibility expected. Total snow accumulations between 2 and 5 inches. Winds gusting as high as 50 mph. * WHERE...Portions of Carbon and Albany county in south central Wyoming. * WHEN...From 6 PM this evening to 3 PM MDT Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...Rapidly dropping temperatures may lead to a flash freeze and icy conditions this evening into Friday morning. |
| Alert: | Winter Weather Advisory |
| Area(s): | Converse County Lower Elevations |
| Effective: | 2026-04-16 @ 6:19 am -> 2026-04-17 @ 1:00 pm |
| Onset: | 2026-04-16 @ 7:00 pm -> 2026-04-16 @ 8:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-04-16 @ 6:19 am |
| Headline: | Winter Weather Advisory issued April 16 at 5:19AM MDT until April 17 at 12:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Snow, blowing snow, and reduced visibility expected. Total snow accumulations between 1 and 4 inches. Winds gusting as high as 45 mph. * WHERE...Converse County Lower Elevations. * WHEN...From 6 PM this evening to noon MDT Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday morning commute. * ADDITIONAL DETAILS...Rapidly dropping temperatures may lead to a flash freeze and icy conditions this evening into Friday morning. |
| Alert: | High Wind Warning |
| Area(s): | Ferris/Seminoe/Shirley Mountains; Central Carbon County; North Snowy Range Foothills; Upper North Platte River Basin |
| Effective: | 2026-04-16 @ 6:12 am -> 2026-04-16 @ 10:00 pm |
| Onset: | 2026-04-16 @ 6:12 am -> 2026-04-16 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-04-16 @ 6:12 am |
| Headline: | High Wind Warning issued April 16 at 5:12AM MDT until April 16 at 9:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80, Ferris/Seminoe/Shirley Mountains, Central Carbon County, and Upper North Platte River Basin. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. |
| Alert: | Winter Weather Advisory |
| Area(s): | Pryor/Northern Bighorn Mountains; Northeast Bighorn Mountains |
| Effective: | 2026-04-16 @ 6:03 am -> 2026-04-17 @ 7:00 am |
| Onset: | 2026-04-16 @ 10:00 am -> 2026-04-17 @ 6:15 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-04-16 @ 6:03 am |
| Headline: | Winter Weather Advisory issued April 16 at 5:03AM MDT until April 17 at 6:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...Snow and blowing snow. Total snow accumulations between 6 and 12 inches. Winds gusting as high as 35 mph. * WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming, Northeast Bighorn Mountains. * WHEN...From 9 AM this morning to 6 AM MDT Friday. * IMPACTS...Travel could be very difficult at times, including Highway 14. Blowing snow could significantly reduce visibility. The hazardous conditions will impact the Thursday morning and evening commutes. |
| Alert: | Winter Weather Advisory |
| Area(s): | Southern Big Horn; Sheridan Foothills |
| Effective: | 2026-04-16 @ 6:03 am -> 2026-04-17 @ 7:00 am |
| Onset: | 2026-04-16 @ 1:00 pm -> 2026-04-17 @ 6:15 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-04-16 @ 6:03 am |
| Headline: | Winter Weather Advisory issued April 16 at 5:03AM MDT until April 17 at 6:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...Snow. Total snow accumulations up to three inches. Winds gusting as high as 40 mph. * WHERE...In Montana, Southern Big Horn. In Wyoming, Sheridan Foothills. * WHEN...From noon today to 6 AM MDT Friday. * IMPACTS...Falling snow and breezy winds may lead to visibility reductions due to blowing snow. The hazardous conditions will impact the Thursday evening commute. * ADDITIONAL DETAILS...Snow totals near Sheridan and along I-90 will generally be around 1 inch. The highest snowfall totals are expected close to the mountains. Heaviest snowfall is expected during the evening hours. |
| Alert: | Red Flag Warning |
| Area(s): | Southern Black Hills; Fall River County Area; Custer County Plains; Pine Ridge Area; Badlands Area; Bennett County Area; Mellette and Todd Counties; Tripp County; Weston County Plains |
| Effective: | 2026-04-16 @ 4:59 am -> 2026-04-16 @ 8:00 pm |
| Onset: | 2026-04-16 @ 1:00 pm -> 2026-04-16 @ 8:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Rapid City SD on 2026-04-16 @ 4:59 am |
| Headline: | Red Flag Warning issued April 16 at 3:59AM MDT until April 16 at 7:00PM MDT by NWS Rapid City SD |
| Description: |
...CRITICAL FIRE WEATHER CONDITIONS POSSIBLE THURSDAY ACROSS PORTIONS OF NORTHEASTERN WYOMING AND SOUTHWESTERN INTO SOUTH CENTRAL SOUTH DAKOTA... .Very warm (70s and 80s) and dry (humidities as low as 13 percent) conditions today. Southwest winds will increase through the day with gusts to 40 mph. The combination of warm, dry, and windy conditions ahead of a cold front will result in critical fire weather conditions this afternoon and evening. * AFFECTED AREA...Fire Weather Zones 317 Weston County Plains, 321 Southern Black Hills, 322 Fall River County Area, 325 Custer County Plains, 326 Pine Ridge Area, 332 Badlands Area, 333 Bennett County Area, 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 13 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. |
| Alert: | Winter Storm Warning |
| Area(s): | Wind River Mountains West; Wind River Mountains East |
| Effective: | 2026-04-16 @ 3:37 am -> 2026-04-17 @ 7:00 pm |
| Onset: | 2026-04-16 @ 3:37 am -> 2026-04-16 @ 7:15 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-04-16 @ 3:37 am |
| Headline: | Winter Storm Warning issued April 16 at 2:37AM MDT until April 17 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Heavy snow expected. Total snow accumulations between 9 and 18 inches across the mountains. Expect snow accumulations of 5 to 7 inches for South Pass. Winds gusting between 45 and 55 mph, including across South Pass. * WHERE...Wind River Mountains East and Wind River Mountains West. * WHEN...Until 6 PM MDT Friday. * IMPACTS...Travel could be very difficult, especially across South Pass. Strong winds will cause limited visibility. |
| Alert: | Winter Weather Advisory |
| Area(s): | Natrona County Lower Elevations |
| Effective: | 2026-04-16 @ 3:37 am -> 2026-04-17 @ 1:00 pm |
| Onset: | 2026-04-16 @ 4:00 pm -> 2026-04-16 @ 7:15 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-04-16 @ 3:37 am |
| Headline: | Winter Weather Advisory issued April 16 at 2:37AM MDT until April 17 at 12:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow, wind, and cold expected. Total snow accumulations between 2 and 5 inches, with localized amounts up to 6 inches possible. Winds gusting between 45 and 55 mph. Expect temperatures below 28 degrees Friday morning. * WHERE...Natrona County Lower Elevations. * WHEN...From 3 PM this afternoon to noon MDT Friday. * IMPACTS...Plan on hazardous road conditions, including along US 20/26 from the Fremont/Natrona County line and east. Gusty winds and snow will cause limited visibility. Vulnerable outdoor equipment and vegetation could be impacted by freezing temperatures. * ADDITIONAL DETAILS...Snow squalls are possible Thursday afternoon and evening. If a snow squall does occur, expect instances of very low visibilities. Temperatures will drop below 28 degrees by Friday morning. |
| Alert: | Winter Weather Advisory |
| Area(s): | Green Mountains and Rattlesnake Range; Casper Mountain |
| Effective: | 2026-04-16 @ 3:37 am -> 2026-04-17 @ 1:00 pm |
| Onset: | 2026-04-16 @ 4:00 pm -> 2026-04-16 @ 7:15 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-04-16 @ 3:37 am |
| Headline: | Winter Weather Advisory issued April 16 at 2:37AM MDT until April 17 at 12:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow and wind expected. Total snow accumulations between 5 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 this afternoon 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. |
| Alert: | Winter Weather Advisory |
| Area(s): | Upper Wind River Basin; Wind River Basin; Lander Foothills |
| Effective: | 2026-04-16 @ 3:37 am -> 2026-04-17 @ 7:00 am |
| Onset: | 2026-04-16 @ 4:00 pm -> 2026-04-16 @ 7:15 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-04-16 @ 3:37 am |
| Headline: | Winter Weather Advisory issued April 16 at 2:37AM MDT until April 17 at 6:00AM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow, wind, and cold expected. Total snow accumulations of a coating to 3 inches. Winds gusting between 35 and 45 mph. Expect temperatures below 28 degrees Friday morning. * WHERE...Lander Foothills, Upper Wind River Basin, and Wind River Basin. * WHEN...From 3 PM this afternoon to 6 AM MDT Friday. * IMPACTS...Plan on slippery and potentially hazardous road conditions, especially on US 20/26 from Shoshoni to the Fremont/Natrona County line. The hazardous conditions could impact travel on Thursday evening. Gusty winds and snow will cause limited visibility. Vulnerable outdoor equipment and vegetation could be impacted by freezing temperatures. * ADDITIONAL DETAILS...Brief periods of heavy snow bands and strong winds are possible Thursday evening, especially on US 20/26 from Shoshoni to the Fremont/Natrona County line. If a heavy band of snow does occur, expect instances of very low visibilities. Temperatures will drop below 28 degrees by Friday morning. |
| Alert: | Winter Weather Advisory |
| Area(s): | Northeast Johnson County; Southeast Johnson County |
| Effective: | 2026-04-16 @ 3:37 am -> 2026-04-17 @ 7:00 am |
| Onset: | 2026-04-16 @ 1:00 pm -> 2026-04-16 @ 7:15 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-04-16 @ 3:37 am |
| Headline: | Winter Weather Advisory issued April 16 at 2:37AM MDT until April 17 at 6:00AM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow, wind, and cold expected. Total snow accumulations between 1 and 4 inches with gusty north winds. Winds gusting between 35 and 55 mph. Expect temperatures below 28 degrees Friday morning. * WHERE...Northeast Johnson County and Southeast Johnson County. * WHEN...From noon today to 6 AM MDT Friday. * IMPACTS...Plan on hazardous road conditions, including along I-25. Gusty winds and snow will cause limited visibility. Vulnerable outdoor equipment and vegetation could be impacted by freezing temperatures. * ADDITIONAL DETAILS...Snow squalls are possible Thursday afternoon and evening. If a snow squall does occur, expect instances of very low visibilities. Temperatures will drop below 28 degrees by Friday morning. |
| Alert: | Winter Weather Advisory |
| Area(s): | Bighorn Mountains West; Bighorn Mountains Southeast |
| Effective: | 2026-04-16 @ 3:37 am -> 2026-04-17 @ 7:00 am |
| Onset: | 2026-04-16 @ 10:00 am -> 2026-04-16 @ 7:15 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-04-16 @ 3:37 am |
| Headline: | Winter Weather Advisory issued April 16 at 2:37AM MDT until April 17 at 6:00AM MDT by NWS Riverton WY |
| Description: |
* WHAT...Snow and wind expected. Total snow accumulations between 6 and 12 inches for elevations above 7,000 feet. Winds gusting between 35 and 55 mph. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...From 9 AM this morning to 6 AM MDT Friday. * IMPACTS...Travel could be difficult, especially over Powder River Pass. Gusty winds will cause limited visibility. |
| Alert: | Winter Storm Warning |
| Area(s): | Yellowstone National Park; Absaroka Mountains; Teton and Gros Ventre Mountains |
| Effective: | 2026-04-16 @ 3:37 am -> 2026-04-17 @ 7:00 am |
| Onset: | 2026-04-16 @ 3:37 am -> 2026-04-16 @ 7:15 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-04-16 @ 3:37 am |
| Headline: | Winter Storm Warning issued April 16 at 2:37AM MDT until April 17 at 6:00AM MDT by NWS Riverton WY |
| Description: |
* WHAT...Heavy snow expected. Total snow accumulations between 9 and 18 inches, with the highest elevations could see up to 20 inches. Winds gusting between 30 and 50 mph. * WHERE...Absaroka Mountains, Teton and Gros Ventre Mountains, and Yellowstone National Park. * WHEN...Until 6 AM MDT Friday. * IMPACTS...Travel could be very difficult, especially across Teton Pass and Togwotee Pass. Strong winds will cause limited visibility. |
| Alert: | Red Flag Warning |
| Area(s): | Pine Ridge/Nebraska National Forest; Box Butte/South Sioux/Niobrara River; Lower North Platte River Basin/Scottsbluff National Monument; Lodgepole Creek/Southern Nebraska Panhandle; Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland; Middle North Platte River Basin/Niobrara and Converse High Plains; North Laramie Range and Adjacent High Plains; Laramie Foothills and High Plains; Laramie East High Plains; Bordeaux/Chugwater/Wheatland; Goshen/Middle-Lower North Platte River Basin |
| Effective: | 2026-04-15 @ 7:14 pm -> 2026-04-16 @ 9:00 pm |
| Onset: | 2026-04-16 @ 1:00 pm -> 2026-04-16 @ 9:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-04-15 @ 7:14 pm |
| Headline: | Red Flag Warning issued April 15 at 6:14PM MDT until April 16 at 8:00PM MDT by NWS Cheyenne WY |
| Description: |
RED FLAG WARNING IN EFFECT THURSDAY FROM NOON TO 8PM. * AFFECTED AREAS...Fire weather zones 430 through 437 along and east of the I-25 corridor. * WIND...Southwest wind gusts between 20 to 30 mph. * HUMIDITY...10 to 15 percent * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. |