Rapid clearing and very wet low levels in the wake of an atmospheric river event led to areas of dense fog in many of the lower valleys.
Every event with a place to put it; 4 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.
Rapid clearing and very wet low levels in the wake of an atmospheric river event led to areas of dense fog in many of the lower 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 Feb 14, 4:17 PM MST, 5 hours 13 minutes earlier.
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</html>Hazardous Weather Outlook National Weather Service Grand Junction CO 423 AM MST Thu Feb 14 2019 COZ001>014-017>023-UTZ022>025-027>029-151300- 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- 423 AM MST Thu Feb 14 2019 This hazardous weather outlook is for eastern Utah and western Colorado. .DAY ONE...Today and Tonight A Pacific storm system will bring widespread rain and snow to eastern Utah and western Colorado this afternoon and tonight. Heavy snowfall is expected across the mountains with snowfall accumulations from 6 to 12 inches expected by early Friday morning. The valleys will see a wintry mix with an inch or two of wet snow possible, expect near Gunnison and Pagosa Springs where snowfall accumulations may approach 6 inches. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Cool and unsettled weather will remain in the region through early next week with temperatures dropping below normal over the weekend. .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.
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</html>PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
801 PM MST THU FEB 14 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0759 PM SNOW 2 ENE HESPERUS 37.30N 107.99W
02/14/2019 E11.0 INCH LA PLATA CO TRAINED SPOTTER
STARTED SNOWING AT 10:15AM AND IS STILL
SNOWING AT THE TIME OF THE REPORT 8PM.
&&
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</html>The national radar mosaic for the moment the first event began.
4 dense fog. Local standard time, as filed.
Dense fog was observed at the Rifle Garfield County Airport with visibility at or below a quarter mile for several hours.
Dense fog was observed at the Grand Junction Regional Airport with visibility at or below a quarter mile.
Dense fog was observed at an automated Colorado Department of Transportation sensor as visibility dropped down to 0.3 miles.
Dense fog was observed at the Rangley Airport with visibility at or below a quarter mile for several hours.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2019Every state in 2019This day in weather historyWarnings in Colorado, February 2019
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: 798347, 798346, 798348, 798345.