Yet another atmospheric river impacted western Colorado, bringing an abundance of moisture and a cold front. This led to additional moderate to heavy snow in the mountains with mostly rain in the valleys.
Every event with a place to put it; 8 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.
Yet another atmospheric river impacted western Colorado, bringing an abundance of moisture and a cold front. This led to additional moderate to heavy snow in the mountains with mostly rain in the valleys. Winds gusted in excess of 45 mph at times.
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 Mar 14, 4:14 PM MST, 1 hour 46 minutes earlier.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous Weather Outlook National Weather Service Grand Junction CO 512 AM MDT Tue Mar 14 2023 COZ001>014-017>023-UTZ022>025-027>029-151115- 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- 512 AM MDT Tue Mar 14 2023 This hazardous weather outlook is for eastern Utah and western Colorado. .DAY ONE...Today and Tonight Snow develops over the eastern Uinta Mountains late this afternoon, then spreads over all the ranges during the night. Snow levels will be near mountain bases so no appreciable snow is expected in the valleys. .DAYS TWO THROUGH SEVEN...Wednesday through Monday A significant winter storm is expected Wednesday through Thursday fed by another atmospheric river. This system is expected to bring accumulations ranging from 1 to 2' across the Elkhead, Park, Flat Tops, West Elk, Sawatch La Sal, Abajo, and southwest San Juan Mountains, as well as the Grand Mesa and Uncompahgre Plateau by the end of the day Thursday. Amounts of 6 to 12 inches and as much as 18 inches is possible for the eastern Uinta, Gore and the north and northwest facing central Colorado mountains and the northwest San Juan Mountains. Snow lingers off and on, mainly across the southern ranges this weekend into early next week. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.
The national radar mosaic for the moment the first event began.
4 winter weather, 3 heavy snow, 1 winter storm. Local standard time, as filed.
Generally 9 to 18 inches of snow fell across the zone with locally higher amounts of up to 20 inches estimated at the Spud Mountain SNOTEL site. Winds gusted up to 48 mph at times.
Generally 4 to 8 inches of snow fell across the area.
Generally 5 to 10 inches of snow fell across the area. Winds gusted up to 55 mph at times.
Generally 4 to 8 inches of snow fell across the area with locally higher amounts of up to 12 inches estimated at the Tower SNOTEL site.
Generally 9 to 18 inches of snow fell across the area with locally higher amounts of over 20 inches estimated at the Park Reservoir SNOTEL site.
Generally 7 to 14 inches of snow fell across the area.
Generally 3 to 6 inches of snow fell across the area with locally higher amounts of up to 8 inches reported. Much of the snow fell in less than 12 hours. Winds gusted up to 50 mph at times.
An estimated 11 inches of snow fell at the Columbine Pass SNOTEL site, much of that in less than 12 hours.
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, March 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 2026-09-24. Each event’s entry at NCEI: 1075933, 1075931, 1075935, 1075928, 1075929, 1075930, 1075934, 1075932.