Lingering low level moisture and fresh snowfall left in the wake of a departing shortwave trough produced dense fog in portions of west-central Colorado.
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The episode as NWS GJT wrote it up.
Lingering low level moisture and fresh snowfall left in the wake of a departing shortwave trough produced dense fog in portions of west-central Colorado.
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 Dec 25, 4:28 PM MST, 14 hours 32 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
1 dense fog. Local standard time, as filed.
Dense fog occurred across much of the Central Gunnison and Uncompahgre River Basins as visibilities dropped below a quarter mile, including at the Montrose Regional Airport and the North Fork Valley in Delta County.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2018Every state in 2018This day in weather historyWarnings in Colorado, December 2018
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: 790738.