NOAA NWS / Event history

Severe Thunderstorm Warning issued October 21 at 2:13PM MST until October 21 at 2:30PM MST by NWS Tucson AZ

Severe Thunderstorm Warning · Pinal, AZ. Severe; observed; urgency: immediate.

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Bulletin issued: 21 October 2026 at 21:13 UTC
First saved by us: 21 October 2026 at 21:10 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 update

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 Tucson AZ · Pinal, AZ
Certainty / urgency: Observed / Immediate
Message expiry (not hazard end): 21 October 2026 at 21:30 UTC
Forecast onset / end: 21 October 2026 at 21:13 UTC / 21 October 2026 at 21:30 UTC

Archived official description

At 213 PM MST, a severe thunderstorm was located 11 miles north of Aravaipa Canyon Wilderness, moving north at 40 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Aravaipa Canyon Wilderness and San Carlos Reservoir.

Instructions in this archived message

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

The saved record

What changed

1 update · 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.

Showing 1 change

Saved by us
21 October 2026 at 21:25 UTC
Version 2
Source status changed
Title
Before
Severe Thunderstorm Warning issued October 21 at 1:57PM MST until October 21 at 2:30PM MST by NWS Tucson AZ
After
Severe Thunderstorm Warning issued October 21 at 2:13PM MST until October 21 at 2:30PM MST by NWS Tucson AZ
Source updated
Before
21 October 2026 at 20:57 UTC
After
21 October 2026 at 21:13 UTC
Effective from
Before
21 October 2026 at 20:57 UTC
After
21 October 2026 at 21:13 UTC
Forecast onset
Before
21 October 2026 at 20:57 UTC
After
21 October 2026 at 21:13 UTC
Message type
Before
Alert
After
Update
Source status
Before
Source alert
After
Source update
Official description
Before
SVRTWC The National Weather Service in Tucson has issued a * Severe Thunderstorm Warning for... East Central Pinal County in southeastern Arizona... * Until 230 PM MST. * At 157 PM MST, a severe thunderstorm was located over Aravaipa Canyon Wilderness, moving north at 45 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Aravaipa Canyon Wilderness and San Carlos Reservoir.
After
At 213 PM MST, a severe thunderstorm was located 11 miles north of Aravaipa Canyon Wilderness, moving north at 40 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Aravaipa Canyon Wilderness and San Carlos Reservoir.
External source link
Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.2e8e5ea068fcbdb64650f2af680a973a68efcda4.001.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.850fc951c592d626d21481d9e595653dab7cb631.001.1
Bulletin issued: 21 October 2026 at 21:13 UTC
View saved version 2
Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.
{ "id": "nws:06ab2d6fd7b091a8a2978181", "authorityId": "urn:oid:2.49.0.1.840.0.850fc951c592d626d21481d9e595653dab7cb631.001.1", "sender": "w-nws.webmaster@noaa.gov", "references": [ { "identifier": "urn:oid:2.49.0.1.840.0.2e8e5ea068fcbdb64650f2af680a973a68efcda4.001.1", "sender": "w-nws.webmaster@noaa.gov" } ], "category": "weather", "title": "Severe Thunderstorm Warning issued October 21 at 2:13PM MST until October 21 at 2:30PM MST by NWS Tucson AZ", "eventType": "Severe Thunderstorm Warning", "occurredAt": "2026-10-21T21:13:00.000Z", "issuedAt": "2026-10-21T21:13:00.000Z", "timeBasis": "Bulletin issued", "effectiveAt": "2026-10-21T21:13:00.000Z", "onsetAt": "2026-10-21T21:13:00.000Z", "expiresAt": "2026-10-21T21:30:00.000Z", "forecastEndAt": "2026-10-21T21:30:00.000Z", "severity": "Severe", "urgency": "Immediate", "certainty": "Observed", "messageType": "Update", "status": "Source update", "place": "Pinal, AZ", "coordinates": null, "issuer": "NWS Tucson AZ", "summary": "Severe Thunderstorm Warning · Pinal, AZ. Severe; observed; urgency: immediate.", "description": "At 213 PM MST, a severe thunderstorm was located 11 miles north of\nAravaipa Canyon Wilderness, moving north at 40 mph.\n\nHAZARD...60 mph wind gusts and quarter size hail.\n\nSOURCE...Radar indicated.\n\nIMPACT...Hail damage to vehicles is expected. Expect wind damage to\nroofs, siding, and trees.\n\nLocations impacted include...\nAravaipa Canyon Wilderness and San Carlos Reservoir.", "instruction": "Seek shelter inside a well-built structure and stay away from\nwindows. This storm is capable of producing damaging winds and large\nhail.", "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.850fc951c592d626d21481d9e595653dab7cb631.001.1", "source": "nws", "sourceName": "NOAA NWS" }
Visit the external source ↗
The external page may have changed since this version was saved.

First saved record · 21 October 2026 at 21:10 UTC

Saved by us

21 October 2026 at 21:10 UTC

Starting point

First saved record

Our first saved version of Severe Thunderstorm Warning issued October 21 at 1:57PM MST until October 21 at 2:30PM MST by NWS Tucson AZ. We have no earlier saved version to compare.

Bulletin issued: 21 October 2026 at 20:57 UTC

View saved version 1

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

{
  "id": "nws:d73047fc83d99020c72137f0",
  "authorityId": "urn:oid:2.49.0.1.840.0.2e8e5ea068fcbdb64650f2af680a973a68efcda4.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [],
  "category": "weather",
  "title": "Severe Thunderstorm Warning issued October 21 at 1:57PM MST until October 21 at 2:30PM MST by NWS Tucson AZ",
  "eventType": "Severe Thunderstorm Warning",
  "occurredAt": "2026-10-21T20:57:00.000Z",
  "issuedAt": "2026-10-21T20:57:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-21T20:57:00.000Z",
  "onsetAt": "2026-10-21T20:57:00.000Z",
  "expiresAt": "2026-10-21T21:30:00.000Z",
  "forecastEndAt": "2026-10-21T21:30:00.000Z",
  "severity": "Severe",
  "urgency": "Immediate",
  "certainty": "Observed",
  "messageType": "Alert",
  "status": "Source alert",
  "place": "Pinal, AZ",
  "coordinates": null,
  "issuer": "NWS Tucson AZ",
  "summary": "Severe Thunderstorm Warning · Pinal, AZ. Severe; observed; urgency: immediate.",
  "description": "SVRTWC\n\nThe National Weather Service in Tucson has issued a\n\n* Severe Thunderstorm Warning for...\nEast Central Pinal County in southeastern Arizona...\n\n* Until 230 PM MST.\n\n* At 157 PM MST, a severe thunderstorm was located over Aravaipa\nCanyon Wilderness, moving north at 45 mph.\n\nHAZARD...60 mph wind gusts and quarter size hail.\n\nSOURCE...Radar indicated.\n\nIMPACT...Hail damage to vehicles is expected. Expect wind damage to\nroofs, siding, and trees.\n\n* Locations impacted include...\nAravaipa Canyon Wilderness and San Carlos Reservoir.",
  "instruction": "Seek shelter inside a well-built structure and stay away from\nwindows. This storm is capable of producing damaging winds and large\nhail.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.2e8e5ea068fcbdb64650f2af680a973a68efcda4.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

Visit the external source ↗

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