textproduct: Cheyenne

KEY MESSAGES

- Warmer temperatures and mostly benign conditions expected Sunday through middle of next week.

SHORT TERM /THROUGH MONDAY/

Issued at 256 AM MST Sun Jan 11 2026

Not much to speak of in the short term as benign weather is expected today and Monday. An upper-level ridge over the west coast will spill into the Rockies, ushering in warmer and drier air aloft. 700 mb temperatures on both Sunday and Monday will hover around 0C. This will lead to high temperatures mainly in the 40s west of the Laramie Range and 50s to the east. By Monday, highs in the Nebraska panhandle could make it into the low 60s. These highs will be about 10 to 15 degrees above average for mid-January. Subsidence under the ridge will lead to mostly sunny skies on both days with no precipitation expected. Given the location of the ridge axis, both Sunday and Monday will be a bit on the breezy side under northwest flow. The edge of a 250 mb jet will be on the fringes of the CWA, aiding in the breeziness. Despite this, both days will be mild and pleasant mid-winter days.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/

Issued at 215 PM MST Sat Jan 10 2026

The long term will be characterized as mostly inactive. Tuesday and again could see some light high mountain snow and breezy conditions. Otherwise, dry and cooling conditions expected through the long term period.

Models show an upper level ridge to remain over the region through much of the long term. Tuesday however, models show a weak disturbance that will ripple across the region bringing with it slightly breezy conditions as well as high mountain snow and low elevation rain. As for the winds, 30-50% of the raw ensembles show sustained winds between 25-30 mph with gusts between 35-40 mph primarily along the I-25 corridor between Cheyenne and Douglas with higher probabilities of stronger winds along the ridgetops of the Laramie Range. Same goes for the I-80 corridor between Cheyennes and Rawlins.

Models show a brief timeframe between 5 AM Tuesday and 5 AM Wednesday where some areas will see some light precipitation. However, little to no accumulations are expected. Only 10-20% of the raw ensembles are in agreement. If precipitation does occur, much of it will fall as rain along the lower elevations and snow along the ridgetops. Confidence in any precipitation accumulating is low.

Temperatures will remain above normal as the ridge remains in place overhead through Thursday. In-house guidance shows that the max temperatures will be 10-20 degrees above seasonal normal with the exception of the higher mountain tops. Models show west of the Laramie Range will average temperatures below 50 degrees while the east will average temperatures in the mid to upper 50s with a few isolated locations seeing low 50s.

Models show a cold front headed its way to the area Thursday afternoon/early evening and will likely be accompanied by increased winds again. The cold front will cool the area back towards seasonal normal temperatures. Models are still out of alignment as we move into mid-week with clusters showing the divergence to be with the location of the incoming system. One model wants to bring in a trough while another model just has stronger north to northwest winds. Regardless of that, both are suggesting a decent cool off towards the end of the period. In-house calculations show that by Friday, temperatures could be at or below seasonal average. Models show highs to be in the mid to upper 30s across the entire CWA with moderate (40-60%) confidence in temperatures.

AVIATION /12Z TAFS THROUGH 12Z MONDAY/

Issued at 419 AM MST Sun Jan 11 2026

Minimal aviation concerns are expected today as winds remain relatively light throughout the day. Some high clouds will be possible this morning, but the trend will be decreasing cloudiness. VFR conditions are expected through the TAF period.

CYS WATCHES/WARNINGS/ADVISORIES

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