NWS Issues Snow Squall Warning for Southeast Albany County Until 12:30 AM

The National Weather Service in Cheyenne has issued a Snow Squall Warning for southeast Albany County, in effect until 12:30 AM MDT tonight, as a fast-moving squall threatens to turn Interstate 80 into a gauntlet of whiteout conditions and sudden ice across southern Wyoming's high plains.

Storms located over Carpenter are tracking southeast at 40 mph, according to NWS Cheyenne. The warning, triggered by radar and webcam observations, covers a wide swath of the region from Laramie and West Laramie east through Vedauwoo, Buford, and Bosler, with Interstate 80 specifically included between mile markers 293 and 337. The Laramie Regional Airport and the University of Wyoming War Memorial Stadium fall within the warning zone, as do dozens of campgrounds and rural communities including Vedauwoo Campground, Tie City Campground, Yellow Pine Campground, North Crow Campground, Ames Monument, Curt Gowdy State Park, and Granite Springs Reservoir.

The hazards are severe and fast-developing. Visibility is expected to drop rapidly to less than one-quarter mile, with wind gusts exceeding 50 mph capable of knocking down tree limbs and sending unsecured objects airborne. The NWS warns that road conditions can deteriorate in minutes. "The sudden white-out conditions combined with falling temperatures produce icy roads in just a few minutes," the agency states on its snow squall guidance page. "Although snow accumulations are typically an inch or less, the added combination of gusty winds, falling temperatures and quick reductions in visibility can cause extremely dangerous conditions for motorists."

Snow squalls differ from conventional winter storms in their speed and localized intensity. They can strike areas with no broader storm system in place and produce extreme short-term impacts to travelers and local commerce even when total snowfall remains minimal. The NWS notes there is "a long history of deadly traffic accidents associated with snow squalls."

NWS warning coordination meteorologist Greg Heavener cautioned that the threat may not be limited to a single pass. "It's entirely possible there will be a resurgence in the conditions that created the snow squall later in the day on Tuesday and on Wednesday," Heavener said. The warning arrives amid a broader stretch of aggressive winter weather hammering the western United States, with back-to-back storms forecast to deposit as much as 8 feet of snow at the highest elevations this week.

Motorists on I-80 between Laramie and the Buford corridor are urged to slow down immediately and avoid travel in the affected area if possible. Rapid shifts in visibility and road surface conditions can occur within minutes of the squall's arrival, leaving little time to react.