Low level moisture remained trapped across the region in the wake of a departing system. This led to the development of dense fog across the Central Gunnison and Uncompahgre River Basin.
Every event with a place to put it; 1 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.
Low level moisture remained trapped across the region in the wake of a departing system. This led to the development of dense fog across the Central Gunnison and Uncompahgre River Basin.
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 7, 4:19 AM MST, 4 hours 11 minutes earlier.
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</html>Hazardous Weather Outlook National Weather Service Grand Junction CO 255 AM MST Wed Dec 7 2022 COZ001>014-017>023-UTZ022>025-027>029-081000- Lower Yampa River Basin-Central Yampa River Basin- Roan and Tavaputs Plateaus-Elkhead and Park Mountains- Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor- Central Colorado River Basin-Grand and Battlement Mesas- Gore and Elk Mountains/Central Mountain Valleys- Central Gunnison and Uncompahgre River Basin- West Elk and Sawatch Mountains-Flat Tops- Upper Gunnison River Valley-Uncompahgre Plateau and Dallas Divide- Northwest San Juan Mountains-Southwest San Juan Mountains- Paradox Valley/Lower Dolores River- Four Corners/Upper Dolores River-Animas River Basin- San Juan River Basin-Southeast Utah-Eastern Uinta Mountains- Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat- La Sal and Abajo Mountains-Canyonlands/Natural Bridges- 255 AM MST Wed Dec 7 2022 This hazardous weather outlook is for eastern Utah and western Colorado. .DAY ONE...Today and Tonight Scattered to widespread rain and snow showers are expected today. The mountains could receive moderate to heavy snowfall especially tonight. Additional snowfall of 5 to 10 inches is common across most of the ranges. Some of the higher valleys could see a couple of inches. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Light snow showers are possible along the Divide mainly Thursday morning. The next best shot for precipitation will be later in the weekend and early next week. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.
The national radar mosaic for the moment the first event began.
1 dense fog. Local standard time, as filed.
Dense fog was observed across the Central Gunnison and Uncompahgre River Basin including at the Montrose Regional Airport as visibility was reduced to less than one quarter of a mile.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2022Every state in 2022This day in weather historyWarnings in Colorado, December 2022
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: 1060374.