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 /06Z TAFS THROUGH 06Z WEDNESDAY/

Issued at 1045 PM MST Mon Nov 2 2026

An active 12 hours ahead with a variety of aviation hazards present, as an elongated pressure trough translates east of our area. A rather sharp pressure gradient has kept NW winds of 25-35 knots, peaking as high as 45 knots, which is expected to relax sometime late morning as the surface pressure gradient weakens.

Perhaps the main concern overnight into tomorrow morning will be areas of showers and possibly even some wet flakes for the Wyoming terminals, and solely liquid precipitation for the Nebraska terminals. CIGs are largely expected to remain MVFR, with low confidence in brief IFR CIGs and VIS reductions under some of the heavier showers. Expect cloud bases to gradually lift from west to east tomorrow morning when the system exits the region. Primarily VFR is expected to prevail for the remainder of the day, with low probabilities of fog developing after 03Z Tuesday. Confidence isn't high enough at this time to introduce a PROB30 group yet/this far out.

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.