Alert archive / Utah / Flash Flood Warnings in 2022
Flash Flood Warning 109, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Sep 29, 2022, 3:38 PM MDT for Kane County, Washington 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
- Sep 29, 2022, 3:38 PM MDT (21:38 UTC)
- Expired
- Sep 29, 2022, 6:45 PM MDT
- In force
- 3 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
Counties Kane County, UT, Washington County, UT
The radar
The Cedar City radar (KICX), 37 km from the middle of the area, began a volume at 21:41 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
Las Vegas, NV (KVEF), launched 12:00Z, 9.6 hours before the alert went out and 272 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
- 276 J/kg
- Mixed-layer CIN
- -194 J/kg
- Mixed-layer LCL
- 2357 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- -8 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 Salt Lake City, UT wrote its last area forecast discussion before this flash flood warning went out at Sep 29, 4:09 AM MDT, 11 hours 29 minutes earlier.
Area forecast discussion, Sep 29, 4:09 AM MDT, 11 hours 29 minutes before
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Local storm report, Sep 29, 2:59 PM MDT, 39 minutes before
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</html>Special weather statement, Sep 29, 3:27 PM MDT, 11 minutes before
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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</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.
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</html>The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 28, 6:02 PM MDT | Special Weather Statement | SLC | Tooele | 43 min |
| Sep 28, 6:41 PM MDT | Special Weather Statement | SLC | 49 min | |
| Sep 28, 7:12 PM MDT | Special Weather Statement | SLC | Tooele | 18 min |
| Sep 28, 7:28 PM MDT | Special Weather Statement | SLC | Salt Lake | 47 min |
| Sep 28, 8:01 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Davis, Salt Lake, Tooele, Weber | 59 min |
| Sep 28, 8:14 PM MDT | Special Weather Statement | SLC | Salt Lake | 46 min |
| Sep 29, 3:13 PM MDT | Flash Flood Warning | SLC | Wayne | 3 hr |
| Sep 29, 3:27 PM MDT | Special Weather Statement | SLC | Juab | 33 min |
| Sep 29, 3:27 PM MDT | Special Weather Statement | SLC | Tooele | 48 min |
| Sep 29, 3:59 PM MDT | Special Weather Statement | SLC | Tooele | 46 min |
| Sep 29, 4:29 PM MDT | Special Weather Statement | SLC | Salt Lake | 31 min |
| Sep 29, 4:31 PM MDT | Special Weather Statement | SLC | Davis | 29 min |
| Sep 29, 4:50 PM MDT | Special Weather Statement | SLC | Davis | 25 min |
| Sep 29, 5:01 PM MDT | Special Weather Statement | SLC | Salt Lake | 29 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.