High pressure at the surface and aloft created a stable air mass over Western Colorado, which trapped low level moisture in some valleys.
Every event with a place to put it; 2 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.
High pressure at the surface and aloft created a stable air mass over Western Colorado, which trapped low level moisture in some valleys.
The national radar mosaic for the moment the first event began.
2 dense fog. Local standard time, as filed.
Widespread dense fog reduced visibility to a quarter mile in much of the area.
Widespread dense fog reduced visibility to one quarter of a mile in much of the area.
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: 604846, 604848.