NOAA NWS / Event history

Severe Thunderstorm Warning issued October 21 at 5:18PM MDT until October 21 at 6:00PM MDT by NWS Salt Lake City UT

Severe Thunderstorm Warning · Iron, UT; Washington, UT. Severe; observed; urgency: immediate.

See the first saved record ↓Detailed event record ↗

Bulletin issued: 21 October 2026 at 23:18 UTC
First saved by us: 21 October 2026 at 23:25 UTC
Last included in a daily record: 21 October 2026
The linked daily edition preserves what we captured that UTC day; this event page is not a live warning.
Source classification: Severe · Source alert

A recent feed check does not mean a new observation. This page preserves source records; it does not establish current safety or warning status.

Issuer / area: NWS Salt Lake City UT · Iron, UT; Washington, UT
Certainty / urgency: Observed / Immediate
Message expiry (not hazard end): 22 October 2026 at 00:00 UTC
Forecast onset / end: 21 October 2026 at 23:18 UTC / 22 October 2026 at 00:00 UTC

Archived official description

SVRSLC The National Weather Service in Salt Lake City has issued a * Severe Thunderstorm Warning for... Southwestern Iron County in southern Utah... Northwestern Washington County in southwestern Utah... * Until 600 PM MDT. * At 518 PM MDT, a severe thunderstorm was located 13 miles north of Dameron Valley, or 18 miles east of Beaver Dam, moving north at 45 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Enterprise and Modena. This includes the following highways... Utah Route 56 between mile markers 11 and 29. Utah Route 18 between mile markers 29 and 51.

Instructions in this archived message

Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing large hail.

The saved record

What changed

0 updates · 1 first record

Each update compares two versions we saved. This may not include every update from the source. A missing report does not mean an event has ended.

First saved record · 21 October 2026 at 23:25 UTC

Saved by us

21 October 2026 at 23:25 UTC

Starting point

First saved record

Our first saved version of Severe Thunderstorm Warning issued October 21 at 5:18PM MDT until October 21 at 6:00PM MDT by NWS Salt Lake City UT. We have no earlier saved version to compare.

Bulletin issued: 21 October 2026 at 23:18 UTC

View saved version 1

Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.

{
  "id": "nws:0196491556be8d6576e3e893",
  "authorityId": "urn:oid:2.49.0.1.840.0.08ecae681ee165c24047c648bbd900f218be8d37.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [],
  "category": "weather",
  "title": "Severe Thunderstorm Warning issued October 21 at 5:18PM MDT until October 21 at 6:00PM MDT by NWS Salt Lake City UT",
  "eventType": "Severe Thunderstorm Warning",
  "occurredAt": "2026-10-21T23:18:00.000Z",
  "issuedAt": "2026-10-21T23:18:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-21T23:18:00.000Z",
  "onsetAt": "2026-10-21T23:18:00.000Z",
  "expiresAt": "2026-10-22T00:00:00.000Z",
  "forecastEndAt": "2026-10-22T00:00:00.000Z",
  "severity": "Severe",
  "urgency": "Immediate",
  "certainty": "Observed",
  "messageType": "Alert",
  "status": "Source alert",
  "place": "Iron, UT; Washington, UT",
  "coordinates": null,
  "issuer": "NWS Salt Lake City UT",
  "summary": "Severe Thunderstorm Warning · Iron, UT; Washington, UT. Severe; observed; urgency: immediate.",
  "description": "SVRSLC\n\nThe National Weather Service in Salt Lake City has issued a\n\n* Severe Thunderstorm Warning for...\nSouthwestern Iron County in southern Utah...\nNorthwestern Washington County in southwestern Utah...\n\n* Until 600 PM MDT.\n\n* At 518 PM MDT, a severe thunderstorm was located 13 miles north of\nDameron Valley, or 18 miles east of Beaver Dam, moving north at 45\nmph.\n\nHAZARD...Quarter size hail.\n\nSOURCE...Radar indicated.\n\nIMPACT...Damage to vehicles is expected.\n\n* Locations impacted include...\nEnterprise and Modena.\n\nThis includes the following highways...\nUtah Route 56 between mile markers 11 and 29. Utah Route 18 between\nmile markers 29 and 51.",
  "instruction": "Seek shelter inside a well-built structure and stay away from\nwindows. This storm is capable of producing large hail.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.08ecae681ee165c24047c648bbd900f218be8d37.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

Visit the external source ↗

The external page may have changed since this version was saved.