Dense Fog Advisory Covers Albany County Vicinity Through Noon Today

Dense fog turned the Interstate 80 corridor between Cheyenne and Laramie into a slow, hazardous drive, with visibility dropping to one quarter mile or less at times and the advisory set to run until noon MDT. The National Weather Service in Cheyenne said the fog may begin to dissipate around 11 a.m., but until then Albany County drivers faced a sharp drop in visibility on one of the region’s most important travel routes.

The advisory covered Central Laramie County, the Laramie Valley and the South Laramie Range Foothills, putting the morning commute, school runs, freight traffic and early business deliveries on alert across the Albany County vicinity. The agency said the main impact was to transportation, and the warning centered on hazardous driving conditions where fog can settle quickly along the valley and foothill routes used every day by Laramie residents, commuters and truck traffic.

The setup was not surprising for a region where weather can change fast. Cheyenne sits at about 6,120 feet, and the Laramie Mountain Range rises to about 8,700 feet roughly 30 miles to the west. That elevation change helps create the kind of localized fog and sudden visibility swings that can catch drivers off guard in the South Laramie Range area and along roads feeding into the Laramie Valley.

The fog also came during a broader stretch of changing weather. The Cheyenne forecast office described a warming trend Sunday through Wednesday with above-average temperatures, followed by showers and isolated thunder late in the week. For Albany County, that meant the dense fog was only the most immediate disruption in a pattern that could still shift again before the week is over.