NOAA NWS / Event history

Severe Thunderstorm Warning issued October 21 at 1:54AM MST until October 21 at 2:15AM MST by NWS Phoenix AZ

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

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Bulletin issued: 21 October 2026 at 08:54 UTC
First saved by us: 21 October 2026 at 08:55 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 Phoenix AZ · Maricopa, AZ
Certainty / urgency: Observed / Immediate
Message expiry (not hazard end): 21 October 2026 at 09:15 UTC
Forecast onset / end: 21 October 2026 at 08:54 UTC / 21 October 2026 at 09:15 UTC

Archived official description

SVRPSR The National Weather Service in Phoenix has issued a * Severe Thunderstorm Warning for... Maricopa County in south central Arizona... * Until 215 AM MST. * At 154 AM MST, a severe thunderstorm was located over Wickenburg, 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... Wickenburg.

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. Torrential rainfall is also occurring with this storm and may lead to flash flooding. Do not drive your vehicle through flooded roadways. Report severe weather to your nearest law enforcement agency or the National Weather Service office in Phoenix AZ.

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 08:55 UTC

Saved by us

21 October 2026 at 08:55 UTC

Starting point

First saved record

Our first saved version of Severe Thunderstorm Warning issued October 21 at 1:54AM MST until October 21 at 2:15AM MST by NWS Phoenix AZ. We have no earlier saved version to compare.

Bulletin issued: 21 October 2026 at 08:54 UTC

View saved version 1

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

{
  "id": "nws:86cc1b19e7c57978ef449dcc",
  "authorityId": "urn:oid:2.49.0.1.840.0.0dc274ba827ac7dca0924c4cae08e793836e815e.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [],
  "category": "weather",
  "title": "Severe Thunderstorm Warning issued October 21 at 1:54AM MST until October 21 at 2:15AM MST by NWS Phoenix AZ",
  "eventType": "Severe Thunderstorm Warning",
  "occurredAt": "2026-10-21T08:54:00.000Z",
  "issuedAt": "2026-10-21T08:54:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-21T08:54:00.000Z",
  "onsetAt": "2026-10-21T08:54:00.000Z",
  "expiresAt": "2026-10-21T09:15:00.000Z",
  "forecastEndAt": "2026-10-21T09:15:00.000Z",
  "severity": "Severe",
  "urgency": "Immediate",
  "certainty": "Observed",
  "messageType": "Alert",
  "status": "Source alert",
  "place": "Maricopa, AZ",
  "coordinates": null,
  "issuer": "NWS Phoenix AZ",
  "summary": "Severe Thunderstorm Warning · Maricopa, AZ. Severe; observed; urgency: immediate.",
  "description": "SVRPSR\n\nThe National Weather Service in Phoenix has issued a\n\n* Severe Thunderstorm Warning for...\nMaricopa County in south central Arizona...\n\n* Until 215 AM MST.\n\n* At 154 AM MST, a severe thunderstorm was located over Wickenburg,\nmoving 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\n* Locations impacted include...\nWickenburg.",
  "instruction": "Seek shelter inside a well-built structure and stay away from\nwindows. This storm is capable of producing damaging winds and large\nhail.\n\nTorrential rainfall is also occurring with this storm and may lead to\nflash flooding. Do not drive your vehicle through flooded roadways.\n\nReport severe weather to your nearest law enforcement agency or the\nNational Weather Service office in Phoenix AZ.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.0dc274ba827ac7dca0924c4cae08e793836e815e.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

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