Residual low level moisture from a previous storm and cold overnight temperatures caused dense fog to form in some southwest Colorado valleys.
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The episode as NWS GJT wrote it up.
Residual low level moisture from a previous storm and cold overnight temperatures caused dense fog to form in some southwest 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 Dec 4, 3:34 PM MST, 7 hours 26 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
2 dense fog. Local standard time, as filed.
Dense fog occurred across some lower elevations of La Plata County as visibilities dropped down to a quarter mile or less.
Dense fog occurred across some lower elevation areas of Archuleta County 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 2014Every state in 2014This day in weather historyWarnings in Colorado, December 2014
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: 559592, 559593.