NOAA NWS / Event history

Severe Thunderstorm Warning issued October 21 at 4:59PM MST until October 21 at 5:30PM MST by NWS Tucson AZ

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

Bulletin issued: 21 October 2026 at 23:59 UTC
First saved by us: 21 October 2026 at 23:40 UTC
Last included in a daily record: 22 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 · Graham, AZ
Certainty / urgency: Observed / Immediate
Message expiry (not hazard end): 22 October 2026 at 00:30 UTC
Forecast onset / end: 21 October 2026 at 23:59 UTC / 22 October 2026 at 00:30 UTC

Archived official description

At 459 PM MST, a severe thunderstorm was located near Solomon, moving northeast at 30 mph. THIS IS A DESTRUCTIVE STORM FOR SWIFT TRAIL JUNCTION AND SOLOMON. HAZARD...Baseball size hail and 70 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be severely injured. Expect shattered windows, extensive damage to roofs, siding, and vehicles. Locations impacted include... Safford, Thatcher, Solomon, San Jose, Safford Regional Airport, Roper Lake State Park and Swift Trail Junction. This includes the following highways... Route 191 between mile markers 111 and 140. Route 70 between mile markers 338 and 365.

Instructions in this archived message

Seek shelter now inside an interior room on the lowest floor of a well-built structure. This storm is capable of producing destructive hail and widespread damaging winds. Tornadoes can develop quickly from severe thunderstorms. Seek shelter immediately in an interior room on the lowest floor of a well-built structure.

The saved record

What changed

2 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.

Showing 2 changes

Saved by us

22 October 2026 at 00:10 UTC

Version 3

6 recorded details changed

Title: Before
Severe Thunderstorm Warning issued October 21 at 4:49PM MST until October 21 at 5:30PM MST by NWS Tucson AZ
After
Severe Thunderstorm Warning issued October 21 at 4:59PM MST until October 21 at 5:30PM MST by NWS Tucson AZ
Source updated: Before
21 October 2026 at 23:49 UTC
After
21 October 2026 at 23:59 UTC
Effective from: Before
21 October 2026 at 23:49 UTC
After
21 October 2026 at 23:59 UTC
Forecast onset: Before
21 October 2026 at 23:49 UTC
After
21 October 2026 at 23:59 UTC
Official description: Before
At 449 PM MST, a severe thunderstorm was located near Roper Lake State Park, moving northeast at 30 mph. THIS IS A DESTRUCTIVE STORM FOR SWIFT TRAIL JUNCTION AND SOLOMON. HAZARD...Baseball size hail and 70 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be severely injured. Expect shattered windows, extensive damage to roofs, siding, and vehicles. Locations impacted include... Safford, Thatcher, Solomon, San Jose, Roper Lake State Park, Safford Regional Airport and Swift Trail Junction. This includes the following highways... Route 191 between mile markers 102 and 140. Route 70 between mile markers 338 and 365. Route 266 between mile markers 105 and 110.
After
At 459 PM MST, a severe thunderstorm was located near Solomon, moving northeast at 30 mph. THIS IS A DESTRUCTIVE STORM FOR SWIFT TRAIL JUNCTION AND SOLOMON. HAZARD...Baseball size hail and 70 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be severely injured. Expect shattered windows, extensive damage to roofs, siding, and vehicles. Locations impacted include... Safford, Thatcher, Solomon, San Jose, Safford Regional Airport, Roper Lake State Park and Swift Trail Junction. This includes the following highways... Route 191 between mile markers 111 and 140. Route 70 between mile markers 338 and 365.
External source link: Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e0111f75b45d07bdf3c96fae2e18b0a93b99c603.001.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.15068e24f012e9620744375b65abcfeb5e3c5ed1.001.1

Bulletin issued: 21 October 2026 at 23:59 UTC

View saved version 3

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

{
  "id": "nws:df8b0e3406b59654a18567c5",
  "authorityId": "urn:oid:2.49.0.1.840.0.15068e24f012e9620744375b65abcfeb5e3c5ed1.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [
    {
      "identifier": "urn:oid:2.49.0.1.840.0.effe456c9b3d8ee76eba120462f4711f27b3a9a2.001.1",
      "sender": "w-nws.webmaster@noaa.gov"
    },
    {
      "identifier": "urn:oid:2.49.0.1.840.0.e0111f75b45d07bdf3c96fae2e18b0a93b99c603.001.1",
      "sender": "w-nws.webmaster@noaa.gov"
    }
  ],
  "category": "weather",
  "title": "Severe Thunderstorm Warning issued October 21 at 4:59PM MST until October 21 at 5:30PM MST by NWS Tucson AZ",
  "eventType": "Severe Thunderstorm Warning",
  "occurredAt": "2026-10-21T23:59:00.000Z",
  "issuedAt": "2026-10-21T23:59:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-21T23:59:00.000Z",
  "onsetAt": "2026-10-21T23:59:00.000Z",
  "expiresAt": "2026-10-22T00:30:00.000Z",
  "forecastEndAt": "2026-10-22T00:30:00.000Z",
  "severity": "Severe",
  "urgency": "Immediate",
  "certainty": "Observed",
  "messageType": "Update",
  "status": "Source update",
  "place": "Graham, AZ",
  "coordinates": null,
  "issuer": "NWS Tucson AZ",
  "summary": "Severe Thunderstorm Warning · Graham, AZ. Severe; observed; urgency: immediate.",
  "description": "At 459 PM MST, a severe thunderstorm was located near Solomon, moving\nnortheast at 30 mph.\n\nTHIS IS A DESTRUCTIVE STORM FOR SWIFT TRAIL JUNCTION AND SOLOMON.\n\nHAZARD...Baseball size hail and 70 mph wind gusts.\n\nSOURCE...Radar indicated.\n\nIMPACT...People and animals outdoors will be severely injured. Expect\nshattered windows, extensive damage to roofs, siding, and\nvehicles.\n\nLocations impacted include...\nSafford, Thatcher, Solomon, San Jose, Safford Regional Airport,\nRoper Lake State Park and Swift Trail Junction.\n\nThis includes the following highways...\nRoute 191 between mile markers 111 and 140. Route 70 between mile\nmarkers 338 and 365.",
  "instruction": "Seek shelter now inside an interior room on the lowest floor of a\nwell-built structure. This storm is capable of producing destructive\nhail and widespread damaging winds.\n\nTornadoes can develop quickly from severe thunderstorms. Seek shelter\nimmediately in an interior room on the lowest floor of a well-built\nstructure.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.15068e24f012e9620744375b65abcfeb5e3c5ed1.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

Visit the external source ↗

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

Saved by us
21 October 2026 at 23:55 UTC
Version 2
Source status changed
Title
Before
Severe Thunderstorm Warning issued October 21 at 4:39PM MST until October 21 at 5:30PM MST by NWS Tucson AZ
After
Severe Thunderstorm Warning issued October 21 at 4:49PM MST until October 21 at 5:30PM MST by NWS Tucson AZ
Source updated
Before
21 October 2026 at 23:39 UTC
After
21 October 2026 at 23:49 UTC
Effective from
Before
21 October 2026 at 23:39 UTC
After
21 October 2026 at 23:49 UTC
Forecast onset
Before
21 October 2026 at 23:39 UTC
After
21 October 2026 at 23:49 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... Southeastern Graham County in southeastern Arizona... * Until 530 PM MST. * At 439 PM MST, a severe thunderstorm was located 7 miles south of Roper Lake State Park, moving northeast at 30 mph. HAZARD...Two inch hail and 70 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Safford, Thatcher, Solomon, San Jose, Roper Lake State Park, Safford Regional Airport and …
After
At 449 PM MST, a severe thunderstorm was located near Roper Lake State Park, moving northeast at 30 mph. THIS IS A DESTRUCTIVE STORM FOR SWIFT TRAIL JUNCTION AND SOLOMON. HAZARD...Baseball size hail and 70 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be severely injured. Expect shattered windows, extensive damage to roofs, siding, and vehicles. Locations impacted include... Safford, Thatcher, Solomon, San Jose, Roper Lake State Park, Safford Regional Airport and …
Official instructions
Before
~~Anyone outdoors should move to shelter inside a well-built structure and stay away from windows. This storm is capable of producing widespread damaging winds and dangerous hail.~~ Tornadoes can develop quickly from severe thunderstorms. Seek shelter immediately in an interior room on the lowest fl…
After
Seek shelter now inside an interior room on the lowest floor of a well-built structure. This storm is capable of producing destructive hail and widespread damaging winds. Tornadoes can develop quickly from severe thunderstorms. Seek shelter immediately in an interior room on the lowest fl…
External source link
Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.effe456c9b3d8ee76eba120462f4711f27b3a9a2.001.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e0111f75b45d07bdf3c96fae2e18b0a93b99c603.001.1
Bulletin issued: 21 October 2026 at 23:49 UTC
View saved version 2
Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.
{ "id": "nws:2afe43bd50b606c1f4959acc", "authorityId": "urn:oid:2.49.0.1.840.0.e0111f75b45d07bdf3c96fae2e18b0a93b99c603.001.1", "sender": "w-nws.webmaster@noaa.gov", "references": [ { "identifier": "urn:oid:2.49.0.1.840.0.effe456c9b3d8ee76eba120462f4711f27b3a9a2.001.1", "sender": "w-nws.webmaster@noaa.gov" } ], "category": "weather", "title": "Severe Thunderstorm Warning issued October 21 at 4:49PM MST until October 21 at 5:30PM MST by NWS Tucson AZ", "eventType": "Severe Thunderstorm Warning", "occurredAt": "2026-10-21T23:49:00.000Z", "issuedAt": "2026-10-21T23:49:00.000Z", "timeBasis": "Bulletin issued", "effectiveAt": "2026-10-21T23:49:00.000Z", "onsetAt": "2026-10-21T23:49:00.000Z", "expiresAt": "2026-10-22T00:30:00.000Z", "forecastEndAt": "2026-10-22T00:30:00.000Z", "severity": "Severe", "urgency": "Immediate", "certainty": "Observed", "messageType": "Update", "status": "Source update", "place": "Graham, AZ", "coordinates": null, "issuer": "NWS Tucson AZ", "summary": "Severe Thunderstorm Warning · Graham, AZ. Severe; observed; urgency: immediate.", "description": "At 449 PM MST, a severe thunderstorm was located near Roper Lake\nState Park, moving northeast at 30 mph.\n\nTHIS IS A DESTRUCTIVE STORM FOR SWIFT TRAIL JUNCTION AND SOLOMON.\n\nHAZARD...Baseball size hail and 70 mph wind gusts.\n\nSOURCE...Radar indicated.\n\nIMPACT...People and animals outdoors will be severely injured. Expect\nshattered windows, extensive damage to roofs, siding, and\nvehicles.\n\nLocations impacted include...\nSafford, Thatcher, Solomon, San Jose, Roper Lake State Park,\nSafford Regional Airport and Swift Trail Junction.\n\nThis includes the following highways...\nRoute 191 between mile markers 102 and 140. Route 70 between mile\nmarkers 338 and 365. Route 266 between mile markers 105 and 110.", "instruction": "Seek shelter now inside an interior room on the lowest floor of a\nwell-built structure. This storm is capable of producing destructive\nhail and widespread damaging winds.\n\nTornadoes can develop quickly from severe thunderstorms. Seek shelter\nimmediately in an interior room on the lowest floor of a well-built\nstructure.", "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e0111f75b45d07bdf3c96fae2e18b0a93b99c603.001.1", "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 23:40 UTC

Saved by us

21 October 2026 at 23:40 UTC

Starting point

First saved record

Our first saved version of Severe Thunderstorm Warning issued October 21 at 4:39PM MST until October 21 at 5:30PM MST by NWS Tucson AZ. We have no earlier saved version to compare.

Bulletin issued: 21 October 2026 at 23:39 UTC

View saved version 1