A closed low pressure system lifted across the Four Corners region and produced moderate snow over portions of the western Colorado mountains in a short period of time.
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.
A closed low pressure system lifted across the Four Corners region and produced moderate snow over portions of the western Colorado mountains in a short period of time.
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 22, 5:20 AM MST, 3 hours 40 minutes earlier.
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</html>Hazardous Weather Outlook National Weather Service Grand Junction CO 542 AM MST Sat Feb 22 2020 COZ001>014-017>023-UTZ022>025-027>029-231245- 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- 542 AM MST Sat Feb 22 2020 This hazardous weather outlook is for eastern Utah and western Colorado. .DAY ONE...Today and Tonight A storm system will arrive this afternoon spreading precipitation from south to north across much of the forecast area overnight. Expect travel over high elevations to remain affected through Sunday. .DAYS TWO THROUGH SEVEN...Sunday through Friday Precipitation comes to end from west to east Sunday as the low pressure moves off to the our east. Light snow will begin across the northern Colorado mountains again on Monday lasting through Tuesday. High pressure then returns keeping the region dry through late next week. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected today or tonight, however spotters are encouraged to report rainfall and snowfall amounts to the National Weather Service in Grand Junction.
The national radar mosaic for the moment the first event began.
3 winter weather. Local standard time, as filed.
Generally 4 to 7 inches of snow fell across the area.
A substantial snow band set up over the region and remained in place for several hours and produced an estimated 4 to 9 inches of snow.
Generally 3 to 5 inches of snow fell across the area in 12 hours or less.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2020Every state in 2020This day in weather historyWarnings in Colorado, February 2020
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: 869923, 869924, 869925.