The first in a series of shortwave disturbances tracked across western Colorado. Moderate to heavy snow fell across the mountains as well as some valleys.
Every event with a place to put it; 7 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.
The first in a series of shortwave disturbances tracked across western Colorado. Moderate to heavy snow fell across the mountains as well as some valleys. Very strong winds resulted in near whiteout conditions at times across portions of the San Juan Mountains.
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 23, 3:38 AM MST, 1 hour 22 minutes earlier.
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</html>Hazardous Weather Outlook National Weather Service Grand Junction CO 300 AM MST Thu Feb 23 2023 COZ001>014-017>023-UTZ022>025-027>029-241500- 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- 300 AM MST Thu Feb 23 2023 This hazardous weather outlook is for eastern Utah and western Colorado. .DAY ONE...Today and Tonight After a brief break this morning, a series of disturbances will move through the region this afternoon and overnight. Snow showers will redevelop across the area throughout the day with moderate snow expected for the southern and central mountains. Breezy conditions will also continue today with gusts of 25 to 35 mph for the valleys and gusts up to 45 mph for the mountains. Bands of snow will develop overnight resulting in an uptick in snowfall, particularly across southwest Colorado. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Showers will continue Friday before activity tapers off Friday evening. A weak ridge of high pressure will build overhead for Saturday before the next system begins to impact the region on Sunday, bringing another round of snow to the area. Periodic showers will continue into early next week with another system likely to move through around midweek. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected today or tonight, however spotters are encouraged to report snowfall amounts to the National Weather Service in Grand Junction.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
349 AM MST THU FEB 23 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 PM SNOW 15 NW DE BEQUE 39.50N 108.38W
02/22/2023 M2.0 INCH GARFIELD CO CO-OP OBSERVER
CO-OP OBSERVER STATION ATBC2 ALTENBERN,
DEBEQUE 15SE.
&&The national radar mosaic for the moment the first event began.
6 winter weather, 1 winter storm. Local standard time, as filed.
Generally 8 to 13 inches of snow fell across the area.
Generally 5 to 9 inches of snow fell across the area. Stronger bands of snow resulted in locally higher amounts in excess of 20 inches at the Bison Lake SNOTEL site.
Generally 10 to 16 inches of snow fell across the area with locally higher amounts of up to 2 feet estimated at the Spud Mountain and Coal Bank Pass SNOTEL sites. Very strong winds resulted in near whiteout conditions at times.
An estimated 4 to 8 inches of snow fell across the area.
Generally 5 to 10 inches of snow fell across the area with locally higher amounts of up to 12 inches estimated at the Schofield Pass SNOTEL site.
Generally 3 to 5 inches of snow fell across the northern part of the zone.
Generally 6 to 8 inches of snow fell across the area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2023Every state in 2023This day in weather historyWarnings in Colorado, February 2023
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: 1075005, 1075007, 1075009, 1075004, 1075006, 1075010, 1075008.