textproduct: Cheyenne

KEY MESSAGES

- Near to just above average temperatures and mostly dry conditions are expected through the weekend.

-Breezier conditions return on Sunday into Monday, however fire weather conditions are not anticipated at this time.

SHORT TERM /THROUGH SUNDAY NIGHT/

Issued at 1132 AM MST Fri Nov 6 2026

Forecast remains on track as we remain in a warm and dry pattern heading into the weekend. Current GOES mid-level water vapor imagery shows a shortwave trough digging south and east across the Desert Southwest, bringing SE Wyoming and the Nebraska Panhandle mainly just a few mid and high level clouds. High temperatures today are forecast to remain slightly above average for this time of year, with locations along and east of the I-25 corridor expected to reach the mid to upper 50s this afternoon, with cooler temperatures in the upper 40s to low 50s west of the Laramie Range. For some perspective, the average high in Cheyenne for this day is in the low 50s. Expecting winds to remain rather calm today as we are under the influence of a 1027 mb surface anticyclone located over the Central Great Plains. Can expect another seasonably chilly night heading into the weekend as large-scale subsidence and weak isentropic descent is in place over the region, with skies remaining mostly clear. Wouldn't be surprised to see some areas of frost early tomorrow morning across the Panhandle, as high-resolution guidance indicates some lingering low-level moisture especially along the North Platte River Valley.

The weekend will start off on a similar note as a positively-tilted ridge begins to amplify over the western half of the country, with 500 mb height anomalies exceeding the 90th percentile relative to climatology. Given the building ridge, temperatures will again remain well above average, peaking in the low 60s east of the Laramie Range, and remaining mainly in the 50s to the west. An abundance of high clouds will be the limiting factor for stronger surface heating.

Heading into Sunday, the ridge axis will be located over our area, and will likely be our warmest day of the period. Wouldn't be surprised to see a few locations in the Nebraska Panhandle exceed the 70 degree mark, as NBM median temperatures are showing widespread upper 60s. Not expecting any records to be broken at this time, but it will feel unseasonably warm for early November. Sunday will also be noticeably windier compared to the previous couple of days, as zonal 700 mb flow increases to 35-40 knots. As it stands, in-house wind guidance keeps even our wind-prone areas well below high wind criteria, but conditions will still be gusty. No fire weather highlights are needed at this time as minimum RH values look to be 20-25% on Sunday afternoon, though any downward trends in low-level moisture will need to be monitored in future forecasts.

LONG TERM /MONDAY THROUGH THURSDAY/

Issued at 1132 AM MST Fri Nov 6 2026

The long term forecast for the Intermountain West is rather boring to say the least. Upper level ridging will put our region in a subsequent chokehold for the next 7 days. This is great news for anyone that needs to build a house or pour concrete this week. Sunday, looks to be the warmest day of the week in the long term forecast when the ridge looks like an amplified sine wave that advects in warmer but drier air into the region. High temperatures look to be in the mid 60's for areas east of I-25 with the potential of some areas to reach 70. 700mb temperatures look to peak around 6 or 7C which will also give us slightly warmer temperatures in the upper 30s overnight compared to the upper 20s we had the past several days. During the next work week, there will be multiple low pressure system moving up and over our ridge dragging some colder air with it. While these systems don't seem to currently present our region with precipitation chances. It will knock our high temperatures down to the more seasonable mid 50's to low 60's and overnight lows into the upper 20's to low 30's as 700mb temperatures hover between 0 and 1C.

AVIATION /18Z TAFS THROUGH 18Z SATURDAY/

Issued at 1036 AM MST Fri Nov 6 2026

Light winds are generally expected through the entire TAF period, but an occasional rogue gust up to 20 knots is still possible in the afternoons. Otherwise High-based clouds between 15,000-22,000ft will be filtering through throughout the day. Expect frost conditions in the early morning and de-ice may be necessary if your aircraft is sitting outside overnight.

CYS WATCHES/WARNINGS/ADVISORIES

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