Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Red Flag Warning |
| Area(s): | Southern Campbell; Weston County Plains |
| Effective: | 2026-06-09 @ 8:59 pm -> 2026-06-10 @ 5:00 am |
| Onset: | 2026-06-10 @ 12:00 pm -> 2026-06-10 @ 9:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Rapid City SD on 2026-06-09 @ 8:59 pm |
| Headline: | Red Flag Warning issued June 9 at 7:59PM MDT until June 10 at 8:00PM MDT by NWS Rapid City SD |
| Description: |
...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR SOUTHERN CAMPBELL, WESTON PLAINS, AND NORTHERN CAMPBELL COUNTIES... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT WEDNESDAY DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR SOUTHERN CAMPBELL, WESTON PLAINS, FALL RIVER AREA, AND PINE RIDGE AREA COUNTIES... ... .Temperatures have dropped and relative humidity has risen above critical thresholds this evening. Gusty winds across northeast Wyoming will also decrease over the next hour or two. The Red Flag Warning will be allowed to expire at 800 PM MDT. Temperatures will not be as warm on Wednesday, but very dry air and gusty winds are expected to return across portions of the northeast Wyoming plains and far southwest South Dakota. Relative humidity as low as 11 percent and westerly wind gusts up to 45 mph are expected late Wednesday morning through the early evening. The National Weather Service in Rapid City SD has issued a Red Flag Warning in effect from 11 AM to 8 PM MDT Wednesday. * AFFECTED AREA...Fire Weather Zones 315 and 317. * TIMING...From 11 AM to 8 PM MDT Wednesday. * WINDS...West winds 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...Relative Humidity as low as 11 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended. |
| Alert: | Special Weather Statement |
| Area(s): | Central Carbon County |
| Effective: | 2026-06-09 @ 7:50 pm -> 2026-06-09 @ 11:00 pm |
| Onset: | 2026-06-09 @ 7:50 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-06-09 @ 7:50 pm |
| Headline: | Special Weather Statement issued June 9 at 6:50PM MDT by NWS Cheyenne WY |
| Description: |
Gusty showers are ongoing this evening along Interstate 80 in Carbon County. Occasional wind gusts between 60 and 65 mph are possible under showers moving along Interstate 80. Use caution if traveling in this area for the next 1 to 3 hours. |
| Alert: | Special Weather Statement |
| Area(s): | Converse County Lower Elevations |
| Effective: | 2026-06-09 @ 6:54 pm -> 2026-06-09 @ 10:00 pm |
| Onset: | 2026-06-09 @ 6:54 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-06-09 @ 6:54 pm |
| Headline: | Special Weather Statement issued June 9 at 5:54PM MDT by NWS Cheyenne WY |
| Description: |
Gusty showers are ongoing across Converse County, with sensors recording gusts up to 55 mph as showers move past. These showers are anticipated to continue through the remainder of the evening, until 10PM tonight. Use caution if traveling along Interstate 25, as sudden, erratic gusts to 55 mph will be possible. |
| Alert: | Red Flag Warning |
| Area(s): | Natrona County/Casper BLM |
| Effective: | 2026-06-09 @ 1:42 pm -> 2026-06-10 @ 8:00 am |
| Onset: | 2026-06-09 @ 1:42 pm -> 2026-06-10 @ 9:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-06-09 @ 1:42 pm |
| Headline: | Red Flag Warning issued June 9 at 12:42PM MDT until June 10 at 8:00PM MDT by NWS Riverton WY |
| Description: |
* AFFECTED AREA: In Central WY...Fire Weather Zone 280. * COUNTIES AFFECTED: In Central WY...Natrona. * IMPACTS: Low Humidities and Strong Gusty Winds could cause erratic fire behavior. * WIND: West 30 to 40 mph with gusts up to 50 to 60 mph. * HUMIDITY: As low as 11 percent. * ADDITIONAL INFORMATION: Conditions are expected to improve around sunset Tuesday evening as humidity improves with fair overnight humidity recovery and wind decreases. Critical fire weather conditions are again expected by late Wednesday morning. |
| 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; Laramie Foothills and High Plains; Laramie East High Plains; Bordeaux/Chugwater/Wheatland; Goshen/Middle-Lower North Platte River Basin |
| Effective: | 2026-06-09 @ 12:47 pm -> 2026-06-10 @ 7:00 am |
| Onset: | 2026-06-09 @ 1:00 pm -> 2026-06-10 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-06-09 @ 12:47 pm |
| Headline: | Red Flag Warning issued June 9 at 11:47AM MDT until June 10 at 9:00PM MDT by NWS Cheyenne WY |
| Description: |
* WIND...West to southwest winds 15 to 35 MPH with gusts up to 50 MPH. * HUMIDITY...8 to 12 percent. Overnight recoveries as low as 35 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Dry lightning will be possible on Tuesday with isolated storms during the afternoon and evening hours. |
| Alert: | High Wind Warning |
| Area(s): | North Snowy Range Foothills |
| Effective: | 2026-06-09 @ 12:16 pm -> 2026-06-10 @ 7:15 am |
| Onset: | 2026-06-09 @ 12:16 pm -> 2026-06-09 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-06-09 @ 12:16 pm |
| Headline: | High Wind Warning issued June 9 at 11:16AM MDT until June 9 at 9:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...For the High Wind Warning, southwest winds 25 to 35 mph with gusts up to 60 mph. For the High Wind Watch, west winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80. * WHEN...For the High Wind Warning, until 9 PM MDT this evening. For the High Wind Watch, from late tonight through Wednesday evening. * 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 Watch |
| Area(s): | Central Laramie Range and Southwest Platte County; South Laramie Range |
| Effective: | 2026-06-09 @ 12:16 pm -> 2026-06-10 @ 7:15 am |
| Onset: | 2026-06-10 @ 7:00 am -> 2026-06-10 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-06-09 @ 12:16 pm |
| Headline: | High Wind Watch issued June 9 at 11:16AM MDT until June 10 at 6:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...West winds 30 to 40 mph with gusts up to 60 mph possible. * 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 Wednesday morning through Wednesday afternoon. * 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 Watch |
| Area(s): | North Snowy Range Foothills |
| Effective: | 2026-06-09 @ 12:16 pm -> 2026-06-10 @ 7:15 am |
| Onset: | 2026-06-10 @ 4:00 am -> 2026-06-10 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-06-09 @ 12:16 pm |
| Headline: | High Wind Watch issued June 9 at 11:16AM MDT until June 10 at 9:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...For the High Wind Warning, southwest winds 25 to 35 mph with gusts up to 60 mph. For the High Wind Watch, west winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80. * WHEN...For the High Wind Warning, until 9 PM MDT this evening. For the High Wind Watch, from late tonight through Wednesday evening. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. |