Snow melted during the day moistening the near-surface air mass. As temperatures cooled overnight, dense fog developed across portions of western Colorado.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS GJT wrote it up.
Snow melted during the day moistening the near-surface air mass. As temperatures cooled overnight, dense fog developed across portions of western Colorado.
The national radar mosaic for the moment the first event began.
4 dense fog. Local standard time, as filed.
Dense fog occurred in the Craig area, with visibilities at the Craig-Moffat Airport down to a quarter mile at times.
Dense fog occurred in the Steamboat Springs area. Visibility at the Steamboat Springs Airport dropped down to a quarter mile at times, and webcams indicated areas of dense fog in the area.
Webcams and road reports indicated numerous areas of dense fog from Dotsero up to Eagle. Visibilities at the Eagle County Regional Airport were down to less than a quarter mile at times.
Widespread dense fog occurred from Blue Mesa reservoir to Gunnison. Visibilities at the Gunnison-Crested Butte Regional Airport were down to a quarter mile at times.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2015Every state in 2015This day in weather historyWarnings in Colorado, January 2015
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 603327, 603329, 603330, 603331.