Alert archive / Utah / Flash Flood Warnings in 2022
Flash Flood Warning 36, NWS Grand Junction, CO
NWS Grand Junction, CO issued this flash flood warning at Aug 14, 2022, 2:00 PM MDT for San Juan County, Utah. It was in force for 3 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
- Aug 14, 2022, 2:00 PM MDT (20:00 UTC)
- Expired
- Aug 14, 2022, 4:30 PM MDT
- In force
- 3 hr
- Issued by
- NWS Grand Junction, CO
- Area
- Storm-based polygon
- Flood severity
- None
County San Juan County, UT
The radar
The Grand Junction radar (KGJX), 212 km from the middle of the area, began a volume at 20:03 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.
The nearest sounding before it
Grand Junction, CO (KGJT), launched 12:00Z, 8.0 hours before the alert went out and 202 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1 J/kg
- Mixed-layer CIN
- -240 J/kg
- Mixed-layer LCL
- 2206 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood 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 flash flood warning went out at Aug 14, 11:38 AM MDT, 2 hours 22 minutes earlier.
Area forecast discussion, Aug 14, 11:38 AM MDT, 2 hours 22 minutes before
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</html>Hazardous weather outlook, Aug 14, 4:54 AM MDT, 9 hours 6 minutes before
Hazardous Weather Outlook National Weather Service Grand Junction CO 454 AM MDT Sun Aug 14 2022 COZ001>014-017>023-UTZ022>025-027>029-151100- 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- 454 AM MDT Sun Aug 14 2022 This hazardous weather outlook is for eastern Utah and western Colorado. .DAY ONE...Today and Tonight Thunderstorms will form over the higher terrain from late morning through early afternoon and drift over low valley floors by this evening. Heavy rainfall, gusty outflow winds, small hail and frequent lightning will be possible with these storms. Nocturnal showers are most probable across west-central and northwestern Colorado, drifting to the north and northeast tonight. .DAYS TWO THROUGH SEVEN...Monday through Saturday Expect chances for storms each afternoon through the week. There is a potential for localized flooding, especially over steep terrain, burn scars, and saturated soils. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected today or tonight, however spotters are encouraged to relay rainfall amounts or any observed flooding to the National Weather Service in Grand Junction.
In the hours before
Special weather statement, Aug 14, 12:26 PM MDT, 1 hour 34 minutes before
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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 |
|---|---|---|---|---|
| Aug 13, 6:38 PM MDT | Areal Flood Advisory | GJT | Mesa | 99 min |
| Aug 14, 12:09 PM MDT | Flash Flood Watch | GJT | Eagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt | 9 hr |
| Aug 14, 12:26 PM MDT | Special Weather Statement | GJT | 34 min | |
| Aug 14, 2:47 PM MDT | Special Weather Statement | GJT | Rio Blanco | 28 min |
| Aug 14, 2:48 PM MDT | Special Weather Statement | GJT | Routt | 42 min |
| Aug 14, 3:07 PM MDT | Special Weather Statement | GJT | Mesa | 23 min |
| Aug 14, 3:33 PM MDT | Special Weather Statement | GJT | Moffat | 27 min |
| Aug 14, 3:35 PM MDT | Special Weather Statement | GJT | Montrose | 25 min |
| Aug 14, 4:04 PM MDT | Special Weather Statement | GJT | Mesa | 26 min |
| Aug 14, 4:07 PM MDT | Special Weather Statement | GJT | Routt | 23 min |
| Aug 14, 4:17 PM MDT | Special Weather Statement | GJT | Moffat | 28 min |
| Aug 14, 4:47 PM MDT | Special Weather Statement | GJT | Moffat | 28 min |
| Aug 14, 5:30 PM MDT | Special Weather Statement | GJT | Garfield | 30 min |
| Aug 14, 5:56 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 3 hr |
| Aug 14, 1:30 PM MDT | Areal Flood Advisory | GJT | San Juan | 30 min |
| Aug 14, 1:31 PM MDT | Special Weather Statement | GJT | Grand | 29 min |
| Aug 14, 2:07 PM MDT | Special Weather Statement | GJT | Grand | 38 min |
| Aug 14, 2:23 PM MDT | Special Weather Statement | GJT | Daggett | 37 min |
| Aug 14, 2:39 PM MDT | Special Weather Statement | GJT | Grand | 36 min |
| Aug 14, 3:55 PM MDT | Special Weather Statement | GJT | Grand | 35 min |
| Aug 14, 4:23 PM MDT | Areal Flood Advisory | GJT | Grand, San Juan | 3 hr |
| Aug 14, 4:33 PM MDT | Flash Flood Warning | GJT | San Juan | 117 min |
Nearby
Flash Flood Warnings in Utah, 2022Every flash flood warning in 2022
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.