Alert archive / Utah / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 73, NWS Salt Lake City, UT

August 22, 20264 counties in Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Aug 22, 2026, 6:21 PM MDT for 4 counties in Utah. It was in force for 24 min. 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 22, 2026, 6:21 PM MDT (00:21 UTC)
Expired: Aug 22, 2026, 6:45 PM MDT
In force: 24 min
Issued by: NWS Salt Lake City, UT
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Box Elder County, UT, Davis County, UT, Tooele County, UT, Weber County, UT

The radar

The Salt Lake City radar (KMTX), 25 km from the middle of the area, began a volume at 00:22 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 00:00Z, 0.4 hours before the alert went out and 406 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 788 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 2777 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 22, 6:12 PM MDT, 9 minutes earlier.

Area forecast discussion, Aug 22, 6:12 PM MDT, 9 minutes before

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In the hours before

Local storm report, Aug 22, 5:20 PM MDT, 1 hour 1 minute before

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Local storm report, Aug 22, 5:25 PM MDT, 56 minutes before

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Local storm report, Aug 22, 5:26 PM MDT, 55 minutes before

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Special weather statement, Aug 22, 5:27 PM MDT, 54 minutes before

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Local storm report, Aug 22, 5:31 PM MDT, 50 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Aug 22, 5:33 PM MDT, 48 minutes before

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<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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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

Everything else NWS Salt Lake City, UT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 22, 6:54 PM MDT	Special Weather Statement	SLC	Davis	51 min
Aug 22, 7:18 PM MDT	Special Weather Statement	SLC	Weber	42 min
Aug 22, 7:29 PM MDT	Severe Thunderstorm Warning Considerable damage threat	SLC	Box Elder, Cache, Weber	46 min
Aug 22, 7:59 PM MDT	Special Weather Statement	SLC	Morgan	46 min
Aug 22, 8:25 PM MDT	Special Weather Statement	SLC	Cache	20 min
Aug 22, 8:49 PM MDT	Special Weather Statement	SLC	Davis	41 min
Aug 22, 8:50 PM MDT	Special Weather Statement	SLC	Davis	40 min
Aug 22, 9:35 PM MDT	Special Weather Statement	SLC	Kane	25 min
Aug 23, 1:14 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Wayne	3 hr
Aug 23, 1:29 PM MDT	Special Weather Statement	SLC	Wayne	46 min
Aug 23, 1:53 PM MDT	Special Weather Statement	SLC	Duchesne	52 min
Aug 23, 2:15 PM MDT	Special Weather Statement	SLC	Wayne	45 min
Aug 23, 2:31 PM MDT	Special Weather Statement	SLC		44 min
Aug 23, 2:48 PM MDT	Severe Thunderstorm Warning	SLC	Box Elder	42 min
Aug 23, 3:19 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Wayne	5 hr
Aug 23, 3:19 PM MDT	Special Weather Statement	SLC	Salt Lake	41 min
Aug 23, 3:27 PM MDT	Special Weather Statement	SLC	Box Elder	33 min
Aug 23, 3:52 PM MDT	Special Weather Statement	SLC	Box Elder	38 min
Aug 23, 4:00 PM MDT	Special Weather Statement	SLC	Tooele	45 min
Aug 23, 4:01 PM MDT	Special Weather Statement	SLC	Salt Lake	44 min
Aug 23, 4:32 PM MDT	Special Weather Statement	SLC	Box Elder	43 min
Aug 23, 4:49 PM MDT	Special Weather Statement	SLC		41 min
Aug 23, 5:20 PM MDT	Special Weather Statement	SLC	Box Elder	40 min
Aug 23, 5:34 PM MDT	Special Weather Statement	SLC	Box Elder	41 min
Aug 23, 5:39 PM MDT	Special Weather Statement	SLC	Tooele	51 min

Nearby

Severe Thunderstorm Warnings in Utah, 2026 Every severe thunderstorm warning in 2026

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.