textproduct: Cheyenne

KEY MESSAGES

- Rain and high elevation snow showers continue through Tuesday morning.

- Winter Weather Advisories remain in place for the mountains, higher elevations of the I-80 corridor and higher elevations of Niobrara County, with wet accumulating snow expected.

- Snow accumulation is possible along the Pine Ridge and the north side of the Cheyenne Ridge, but confidence is lower.

- Widespread northwest winds gusting 45 to 55 mph are expected along and east of the Laramie Range Monday and Monday night.

SHORT TERM /THROUGH TUESDAY NIGHT/

Issued at 309 PM MST Mon Nov 2 2026

Snow began earlier this morning for areas west of the Laramie Range. Webcams and surface observations confirmed the snow, which was accumulating on grassy surfaces under pretty decent snowfall rates. Precipitation rates in these areas have begun to lessen as the surface low tracks further to the northeast, allowing some of the snow to melt thanks to the warmer ground temperature. The surface low tracking to the northeast is also producing some impressive wind gusts for areas east of the Laramie Range. Frequent gusts of 50 MPH are being observed. These strong gusts will continue into the evening hours, with the potential for an occasional 60 MPH wind gust through that timeframe. After midnight, winds will weaken, but still be quite blustery. Precipitation is beginning to fill in a bit more east of the Laramie Range. Temperatures here are predominately in the 40s so rain is still being observed. As snow levels drop to about 5000 feet this evening, rain will transition to snow, with the potential for accumulation, mainly along the Pine Ridge from the Niobrara/Converse County line to the Sioux/Dawes County line. Went ahead and issued a Winter Weather Advisory for Niobrara County as Lusk and the hills south of town could see between 2 and 4 inches of snow this evening and into tonight. Will also have to keep an eye on Harrison as they also have the potential to pick up a few inches of snow. The other area of concern will be the northern edge of the Cheyenne Ridge. Newer model guidance keeps placing several inches of snow here, however uncertainty is still high with amounts as it will largely depend on the snow levels. For now, will keep an eye on this area to see if any short-fuse winter headlines are needed. Other Winter Weather Advisories remain on track, with snow tapering off around the Arlington area this evening when the Advisory expires. The mountain zones and the South Laramie Range are also on track, with snow expected to continue through this evening, with additional accumulations up to 4 inches depending on location and elevation.

The weather on Tuesday looks quieter as the surface low pushes out of the area. Some lingering precipitation and wind could still be possible in the Nebraska panhandle during the morning hours, but will taper off by the afternoon. Decreasing clouds are expected throughout the day with mostly sunny skies anticipated by the afternoon. The increased sunshine will lead to warmer temperatures with highs in the 40s and low 50s. However, temperatures could be cooler based on the amount of snow cover.

LONG TERM /WEDNESDAY THROUGH MONDAY/

Issued at 309 PM MST Mon Nov 2 2026

Wednesday...Our region will be in between weather disturbances with a trough aloft over central Colorado, producing some cloud cover over our counties, but no precipitation. Temperatures slightly warmer than Tuesday with 700 mb temperatures near 0 Celsius.

Thursday...High amplitude and well pronounced ridging aloft will prevail across our counties, keeping the weather dry. The warming trend will continue, and with 700 mb temperatures near 2 Celsius, yielding maximum temperatures mainly in the 50s.

Friday...A progressive and positively tilted shortwave trough aloft moves across eastern Montana and eastern Wyoming, though with little if any cloud cover and no precipitation for our forecast area.

Saturday...Brisk northwest flow aloft prevails, and with decent low level pressure gradients, look for a windy and blustery day. Maximum temperatures should be slightly cooler than Friday.

Sunday...Transitory ridging aloft moves across our counties, with significant height rises aloft. 700 mb temperatures near 6 Celsius will yield high temperatures from the lower 50s to lower 60s.

Monday...The slow warming trend continues as the flow aloft backs to westerly and with little if any cloud cover and 700 mb temperatures near 5 Celsius suggesting maximum temperatures from the upper 50s to mid 60s.

AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/

Issued at 444 PM MST Mon Nov 2 2026

An elongated surface low pressure system spanning the Great Plains will bring a variety of hazards over the next 24 hours including rain and/or snow, gusty winds, and low CIGs/vis.

For winds, can expect gusty conditions overnight mainly east of the Laramie Range with NW gusts as high as 40-45 knots in the presence of a strong leeside pressure gradient. Expecting precipitation to become more widespread this evening into the overnight hours especially across the Panhandle, where prevailing groups for -RA were put in the TAFs with primarily IFR expected before 12Z as this storm system exits our area tomorrow after sunrise. Introduced TEMPO groups for KCYS and KLAR for snow, or a mix of rain and snow this evening as current radar reflectivity shows has somewhat of a banded appearance and thus moderate confidence that both terminals will be impacted by precipitation. Expect mainly some lingering showers for the SE WY terminals until 09Z, so kept in PROB30 groups until then after the most widespread precipitation is expected to be located over our NE terminals. CIGs are expected to lift to at least MVFR criteria from west to east by 15Z, with a gradual clearing trend expected throughout the day Tuesday.

CYS WATCHES/WARNINGS/ADVISORIES

WY...Winter Weather Advisory until 2 AM MST Tuesday for WYZ102. Winter Weather Advisory until 11 PM MST this evening for WYZ103-112-114-116. NE...None.