Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Special Weather Statement |
| Area(s): | Dawes; North Sioux; South Sioux; Niobrara County; Goshen County |
| Effective: | 2026-05-13 @ 9:40 pm -> 2026-05-13 @ 10:30 pm |
| Onset: | 2026-05-13 @ 9:40 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-13 @ 9:40 pm |
| Headline: | Special Weather Statement issued May 13 at 8:40PM MDT by NWS Cheyenne WY |
| Description: |
At 840 PM MDT, Doppler radar was tracking a strong thunderstorm 7 miles northwest of Agate Fossil Beds National Monument, or 31 miles northeast of Torrington, moving northeast at 40 mph. HAZARD...Wind gusts up to 50 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Crawford, Harrison, Roberts Trailhead Campground, Agate Fossil Beds National Monument, Whitney Lake, Soldier Creek Campground, Montrose, Fort Robinson State Park, and Toadstool Geological Park and Campground. |
| Alert: | Special Weather Statement |
| Area(s): | Central Laramie Range and Southwest Platte County; Laramie Valley; South Laramie Range; South Laramie Range Foothills |
| Effective: | 2026-05-13 @ 9:18 pm -> 2026-05-13 @ 10:00 pm |
| Onset: | 2026-05-13 @ 9:18 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-13 @ 9:18 pm |
| Headline: | Special Weather Statement issued May 13 at 8:18PM MDT by NWS Cheyenne WY |
| Description: |
At 817 PM MDT, Doppler radar was tracking a strong thunderstorm near University Of Wyoming War Memorial Stadium, or near Laramie, moving northeast at 30 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Laramie, West Laramie, Federal, Antelope Buttes, Rogers Canyon, Tie City Campground, North Crow Campground, University Of Wyoming War Memorial Stadium, Horse Creek, Yellow Pine Campground, Pope Springs, and Albany County Fairgrounds. This includes Interstate 80 in Wyoming between mile markers 306 and 327. |
| Alert: | Special Weather Statement |
| Area(s): | Converse County Lower Elevations; Niobrara County; North Laramie Range; Ferris/Seminoe/Shirley Mountains; Shirley Basin; Central Laramie Range and Southwest Platte County; East Platte County; Goshen County; Central Carbon County; North Snowy Range Foothills; Southwest Carbon County; Upper North Platte River Basin; Laramie Valley; South Laramie Range; South Laramie Range Foothills; Central Laramie County; East Laramie County |
| Effective: | 2026-05-13 @ 1:29 pm -> 2026-05-15 @ 8:00 pm |
| Onset: | 2026-05-13 @ 1:29 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-13 @ 1:29 pm |
| Headline: | Special Weather Statement issued May 13 at 12:29PM MDT by NWS Cheyenne WY |
| Description: |
A zonal flow pattern over southeast Wyoming will lead to strong winds on both Thursday and Friday. Wind gusts in excess of 45 MPH are expected on Thursday and 35 MPH on Friday. A dry airmass in place both days will lead to relative humidity values below 10 percent. Overnight humidity recoveries Wednesday and Thursday night will also be poor. The combination of wind and extremely dry conditions will lead to increased fire danger. However, given recent moisture and green up of vegetation across the area, fuels are currently non-critical. Despite this, outdoor burning is still not recommended given the conditions on Thursday and Friday. Use caution, don't be the spark! |
| Alert: | High Wind Warning |
| Area(s): | North Snowy Range Foothills |
| Effective: | 2026-05-13 @ 11:41 am -> 2026-05-14 @ 7:00 am |
| Onset: | 2026-05-14 @ 4:00 am -> 2026-05-14 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-13 @ 11:41 am |
| Headline: | High Wind Warning issued May 13 at 10:41AM MDT until May 14 at 6:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80. * WHEN...From 3 AM to 6 PM MDT Thursday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. |
| Alert: | High Wind Warning |
| Area(s): | Central Laramie Range and Southwest Platte County; South Laramie Range |
| Effective: | 2026-05-13 @ 11:41 am -> 2026-05-14 @ 7:00 am |
| Onset: | 2026-05-14 @ 7:00 am -> 2026-05-14 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-05-13 @ 11:41 am |
| Headline: | High Wind Warning issued May 13 at 10:41AM MDT until May 14 at 6:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...West winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...South Laramie Range including the Interstate 80 Summit between Cheyenne and Laramie, and Bordeaux area along Interstate 25 between Chugwater and Wheatland. * WHEN...From 6 AM to 6 PM MDT Thursday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. |
| Alert: | Hydrologic Outlook |
| Area(s): | Big Horn, MT; Carbon, MT; Golden Valley, MT; Park, MT; Stillwater, MT; Sweet Grass, MT; Wheatland, MT; Yellowstone, MT; Sheridan, WY |
| Effective: | 2026-05-13 @ 10:34 am -> 2026-05-14 @ 4:00 pm |
| Onset: | 2026-05-13 @ 10:34 am |
| Severity: | Unknown |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Billings MT on 2026-05-13 @ 10:34 am |
| Headline: | Hydrologic Outlook issued May 13 at 9:34AM MDT by NWS Billings MT |
| Description: |
ESFBYZ Recent very warm temperatures has enhanced snowmelt in the mountains this week, resulting in significantly higher flows on area waterways. Flooding is not expected at this time due to marginal remaining snowpack in the middle elevations between 6000 and 8000 feet. Rivers that have seen increased flows include the Yellowstone, Shields, Boulder, Stillwater, and Clarks Fork. Some smaller streams flowing out of the mountains have also experienced rises. Looking ahead, cooler temperatures are in store for the end of the week. In fact, a seasonably cold weather system may bring freezing temperatures at high elevations and potential snowfall this weekend into early next week. The colder weather will slow or briefly halt the high elevation snow melt. Those with interests along foothills waterways should be prepared for higher water levels, and move property and livestock away from rivers, streams, and low lying areas. Runoff may fill culverts, ditches, and storm drains causing water to flow over foothills roadways potentially causing damage. Do not drive over flooded roadways, Turn Around Don't Drown. Recreationists in the mountains and foothills should be prepared for changing conditions and use extra caution when near waterways. Flows will be faster, and the water is very cold. Stay tuned to the forecast. Please report any flooding to local law enforcement and have them relay the report to the National Weather Service. |