Trapped low level moisture again produced areas of dense fog in some western Colorado valleys.
Every event with a place to put it; 3 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.
Trapped low level moisture again produced areas of dense fog in some western Colorado valleys.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Junction, CO wrote its last area forecast discussion before the first event at Feb 13, 6:51 PM MST, 39 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
3 dense fog. Local standard time, as filed.
Dense fog occurred intermittently across portions of the Animas River Basin as visibilities dropped down to a quarter mile or less.
Dense fog occurred across portions of the upper Yampa River Basin as visibilities dropped down to a quarter mile or less.
Dense fog occurred across portions of the central Yampa River Basin as visibilities dropped down to a quarter mile or less.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2017Every state in 2017This day in weather historyWarnings in Colorado, February 2017
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 2026-09-30. Each event’s entry at NCEI: 685899, 685897, 685898.