Alert archive / Colorado / Winter Storm Warnings in 2018
Winter Storm Warning 4, NWS Grand Junction, CO
NWS Grand Junction, CO issued this winter storm warning at Feb 11, 2018, 3:05 PM MST for 7 counties in Colorado. It took effect at Feb 12, 2018, 3:00 AM MST. It was in force for 30 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 11, 2018, 3:05 PM MST (22:05 UTC)
- In effect from
- Feb 12, 2018, 3:00 AM MST
- Expired
- Feb 13, 2018, 8:47 AM MST
- In force
- 30 hr
- Issued by
- NWS Grand Junction, CO
Counties Archuleta County, CO, Dolores County, CO, Hinsdale County, CO, La Plata County, CO, Montezuma County, CO, San Juan County, CO, San Miguel County, CO
The radar
The Grand Junction radar (KGJX), 165 km from the middle of the area, began a volume at 22:06 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What forecasters said that day
The local office's own words before this winter storm warning went out, 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 this winter storm warning went out at Feb 11, 10:41 AM MST, 4 hours 24 minutes earlier.
Area forecast discussion, Feb 11, 10:41 AM MST, 4 hours 24 minutes before
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</html>Hazardous weather outlook, Feb 11, 4:04 AM MST, 11 hours 1 minute before
Hazardous Weather Outlook National Weather Service GRAND JUNCTION CO 404 AM MST Sun Feb 11 2018 COZ001>014-017>023-UTZ022>025-027>029-121115- 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- 404 AM MST Sun Feb 11 2018 This hazardous weather outlook is for eastern Utah and western Colorado. .DAY ONE...Today and Tonight After a dry conditions today through most of tonight, a strong storm will approach from the southwest. After about 3 AM snow will begin falling over the San Juan and Abajo mountains, mainly above 9000 feet, and rain is expected to develop over lower elevations of southeast Utah and southwest Colorado. Red Mountain Pass may become icy and snow-packed before sunrise Monday. .DAYS TWO THROUGH SEVEN...Monday through Saturday Snowfall will increase Monday morning in the San Juan mountains Monday with rain at lower elevations. The valley rain and mountain snow will spread north and west across most of eastern Utah and western Colorado Monday afternoon through Tuesday night. Highest accumulations should be above 9000 feet. Hazardous driving conditions will be possible over all the high mountain passes and thunderstorms are also possible Monday afternoon. Another storm is possible Wednesday night through Thursday night. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.
In the hours before
Local storm report, Feb 11, 1:39 PM MST, 1 hour 26 minutes before
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</html>Local storm report, Feb 11, 1:40 PM MST, 1 hour 25 minutes before
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</html>Local storm report, Feb 11, 1:41 PM MST, 1 hour 24 minutes before
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</html>Local storm report, Feb 11, 1:43 PM MST, 1 hour 22 minutes before
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</html>Local storm report, Feb 11, 1:47 PM MST, 1 hour 18 minutes before
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</html>Local storm report, Feb 11, 2:51 PM MST, 14 minutes before
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<div class="status" id="status">Temporary Notice</div>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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</html>The office that day
Everything else NWS Grand Junction, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 11, 5:12 AM MST | Winter Weather Advisory | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 11 more | 54 hr |
Nearby
Winter Storm Warnings in Colorado, 2018Every winter storm warning in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.