textproduct: Cheyenne

KEY MESSAGES

- Dry weather and mild temperatures expected for the rest of the week and into the weekend. Possible change in the weather pattern early next week.

- Some record high temperatures expected Today, Friday, and possibly through the weekend.

- Locally strong winds possible for the Wind Prone areas of southeast Wyoming late Friday night and Saturday morning.

SHORT TERM /THROUGH SATURDAY/

Issued at 245 AM MST Thu Feb 5 2026

Tranquil weather expected to continue Thursday and Friday as all models have not changed over the past 48 hours, and still showing the strong upper level high pressure drifting eastward into the Rocky Mountain region. Both the GFS and ECMWF show this upper level high/ridge axis around +2 to +3 standard deviations above the mean across the area, so expect record highs into this weekend as this pattern will not change much over the next few days. After a mild Wednesday, temperatures will continue to trend even higher for Thursday with afternoon highs in the mid 50s to mid 60s. Can't rule out a few locations reaching 70 degrees below 4500 feet across far eastern Wyoming and western Nebraska. Friday will be a little cooler, but only because surface winds will shift into the south, allowing some light upslope flow across the Pine Ridge and Cheyenne Ridge. Typically in this pattern, fog will be an issue across central and south central Wyoming as the upper level high moves over the area and valley temperatures inversions strengthen. Will keep an eye on this trend over the next few days, but with dry conditions and the lack of a surface snowpack, confidence is less than 15 percent at this time...so will leave it out of the forecast.

As we head into Friday night, models show the upper level high/ridge axis breaking down as it moves east of the Front Range. A weak disturbance aloft will dig southeast out of Canada. Although no notable weather will be associated with this feature, low to midlevel gradients are forecast to increase across the wind prone areas. The GFS and Canadian show 700mb winds increasing to around 45 to 50 knots along with strengthening subsidence on the lee-side of the mountains. In- house wind models have also trended higher with probabilities for winds over 60 MPH. Increased winds across all I-80 and I-25 wind prone areas late Friday night and Saturday morning to near High Wind criteria. If model trends continue, may need a High Wind Watch as we head into tonight and Friday.

LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/

Issued at 250 PM MST Wed Feb 4 2026

At the start of the long term period, ridging will continue its domination of weather conditions across the CWA, leading to no precipitation and mild temperatures. As we progress through the forecast period, ridging will control weather conditions into and through this upcoming weekend. So, expect dry conditions under sunny skies and mild temperatures. With all this talk about temperatures, what can we expect? Well, a surge of warm 700mb temperates will push into the CWA, in the +2 to +4 degree C range, leading to highs soaring to above normal. So, highs Friday through the weekend into Monday will top out in the low/mid 50s degrees F west of I-25 and mid 50s/60s east of the highway, warmer as you go east with the highest temperatures across the Nebraska Panhandle where a few locations may hit 70 Saturday and/or Sunday. During this stretch, we could see a few temperature records being tied or broken. The threat of high winds in the extended remains meager under the dominating ridge, although elevated chances increase across southeast Wyoming Saturday morning into the afternoon hours and once again Sunday night. So, now lets take a quick look at the tail end of the long term where we may see some changes across the CWA. In-house guidance depicts a cold front that will slide south across the region from low pressure coming out of Canada. This will bring increased chances of precipitation and colder temperatures along with an uptick in winds. Plenty of time to monitor and fine tune the forecast, so stay tuned...

AVIATION /12Z TAFS THROUGH 12Z FRIDAY/

Issued at 445 AM MST Thu Feb 5 2026

Strong upper level ridge will drift east over the area today. Generally light winds and clear skies expected for eastern Wyoming, with occasionally breezy conditions for western Nebraska.

HAZARDS/WEATHER TRENDS: VFR conditions will continue over the next 24 hours. West to northwest winds will gust between 20 to 25 knots for most western Nebraska terminals and KCYS until 00z Friday.

CYS WATCHES/WARNINGS/ADVISORIES

WY...None. NE...None.