NOAA NWS / Event history

Flash Flood Warning issued October 21 at 11:02AM MST until October 21 at 3:00PM MST by NWS Flagstaff AZ

Flash Flood Warning · Coconino, AZ. Severe; likely; urgency: immediate.

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Bulletin issued: 21 October 2026 at 18:02 UTC
First saved by us: 21 October 2026 at 18:10 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 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 Flagstaff AZ · Coconino, AZ
Certainty / urgency: Likely / Immediate
Message expiry (not hazard end): 21 October 2026 at 22:00 UTC
Forecast onset / end: 21 October 2026 at 18:02 UTC / 21 October 2026 at 22:00 UTC

Archived official description

FFWFGZ The National Weather Service in Flagstaff has issued a * Flash Flood Warning for... The Moenkopi Wash in... Coconino County in north central Arizona... * Until 300 PM MST /400 PM MDT/. * At 1102 AM MST /1202 PM MDT/, a river gauge on the Moenkopi Wash reported a rapid rise of around 8 feet from thunderstorms producing heavy rain over the Moenkopi Wash. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding in and around the Moenkopi Wash. SOURCE...River gauge reported. IMPACT...Life threatening flash flooding of areas in and around the Moenkopi Wash. * Some locations that will experience flash flooding include... Moenkopi. This includes the following highways... Highway 160 between mile markers 318 and 321. U.S. Highway 89 between mile markers 476 and 478. State Route 264 between mile markers 323 and 324. This includes the following creeks, washes and rivers... Little Colorado River, Begashibito Wash, Fivemile Wash, Moenkopi Wash and Hamblin Wash.

Instructions in this archived message

This is a life threatening situation. Heavy rainfall will cause extensive and severe flash flooding of creeks...streams...and ditches in the Moenkopi Wash. Severe debris flows can also be anticipated across roads. Roads and driveways may be washed away in places. If you encounter flood waters...climb to safety.

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 18:10 UTC

Saved by us

21 October 2026 at 18:10 UTC

Starting point

First saved record

Our first saved version of Flash Flood Warning issued October 21 at 11:02AM MST until October 21 at 3:00PM MST by NWS Flagstaff AZ. We have no earlier saved version to compare.

Bulletin issued: 21 October 2026 at 18:02 UTC

View saved version 1

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

{
  "id": "nws:9e2efb7826aee7b90a6de5d6",
  "authorityId": "urn:oid:2.49.0.1.840.0.167b1b6578d02c2fcb6207caf897daf2dc5c6681.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [],
  "category": "weather",
  "title": "Flash Flood Warning issued October 21 at 11:02AM MST until October 21 at 3:00PM MST by NWS Flagstaff AZ",
  "eventType": "Flash Flood Warning",
  "occurredAt": "2026-10-21T18:02:00.000Z",
  "issuedAt": "2026-10-21T18:02:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-21T18:02:00.000Z",
  "onsetAt": "2026-10-21T18:02:00.000Z",
  "expiresAt": "2026-10-21T22:00:00.000Z",
  "forecastEndAt": "2026-10-21T22:00:00.000Z",
  "severity": "Severe",
  "urgency": "Immediate",
  "certainty": "Likely",
  "messageType": "Alert",
  "status": "Source alert",
  "place": "Coconino, AZ",
  "coordinates": null,
  "issuer": "NWS Flagstaff AZ",
  "summary": "Flash Flood Warning · Coconino, AZ. Severe; likely; urgency: immediate.",
  "description": "FFWFGZ\n\nThe National Weather Service in Flagstaff has issued a\n\n* Flash Flood Warning for...\nThe Moenkopi Wash in...\nCoconino County in north central Arizona...\n\n* Until 300 PM MST /400 PM MDT/.\n\n* At 1102 AM MST /1202 PM MDT/, a river gauge on the Moenkopi Wash\nreported a rapid rise of around 8 feet from thunderstorms producing\nheavy rain over the Moenkopi Wash. Flash flooding is ongoing or\nexpected to begin shortly.\n\nHAZARD...Life threatening flash flooding. Thunderstorms producing\nflash flooding in and around the Moenkopi Wash.\n\nSOURCE...River gauge reported.\n\nIMPACT...Life threatening flash flooding of areas in and around the\nMoenkopi Wash.\n\n* Some locations that will experience flash flooding include...\nMoenkopi.\n\nThis includes the following highways...\nHighway 160 between mile markers 318 and 321. U.S. Highway 89 between\nmile markers 476 and 478. State Route 264 between mile markers 323\nand 324.\n\nThis includes the following creeks, washes and rivers...\nLittle Colorado River, Begashibito Wash, Fivemile Wash, Moenkopi\nWash and Hamblin Wash.",
  "instruction": "This is a life threatening situation. Heavy rainfall will cause\nextensive and severe flash flooding of creeks...streams...and ditches\nin the Moenkopi Wash. Severe debris flows can also be anticipated\nacross roads. Roads and driveways may be washed away in places. If\nyou encounter flood waters...climb to safety.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.167b1b6578d02c2fcb6207caf897daf2dc5c6681.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

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