Flash Flood Warning

NWS Flagstaff AZ · US

Updated WEA requested

This event was updated at 2026-10-22 08:57:00 UTC.

English

Flash Flood Warning Issued October 21 At 4:31PM MST Until October 21 At 10:00PM MST By NWS Flagstaff AZ

Event: Flash Flood Warning
Issued: 2026-10-21 23:31:00 UTC
Onset: 2026-10-21 23:31:00 UTC
Message expires: 2026-10-22 05:00:00 UTC
Expected end: 2026-10-22 05:00:00 UTC
Category: Meteorological
Urgency: Immediate
Severity: Severe
Certainty: Likely
Response: Avoid

Wireless alert

National Weather Service: A FLASH FLOOD WARNING is in effect for this area until 10:00 PM MST. This is a dangerous and life-threatening situation. Do not attempt to travel unless you are fleeing an area subject to flooding or under an evacuation order.

Description

Overview

FFWFGZ The National Weather Service in Flagstaff has extended the * Flash Flood Warning for... The Moenkopi Wash in... Coconino County in north central Arizona... * Until 1000 PM MST /1100 PM MDT/. * At 431 PM MST /531 PM MDT/, a river gauge on the Moenkopi Wash remains in Major Flood Stage. Up to 1 inch of rain has fallen. Additional rainfall amounts of 0.5 to 1 inch are possible in the warned area. 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.

Impacts

Life threatening flash flooding of areas in and around the Moenkopi Wash. * For Moenkopi Wash at Moenkopi Wash Near Tuba City: At 1:45pm MST /2:45pm MDT/ the stage was 31.82 feet. Flood Stage is 27.0 feet. Forecast: A crest of 30.97 feet is expected at 3:00pm MST /4:00pm MDT/ Wednesday. Impacts: At 27.0 feet: At 27.0 feet water begins to encroach on homes in lower Moenkopi Village and floods crop fields along the river. Some locations that will experience flash flooding include... Tuba City and 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... Moenkopi Wash, Little Colorado River, Hamblin Wash, Begashibito Wash and Fivemile Wash.

Instructions

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.

Affected areas

Coconino County, AZ

Public contact

Issuer: NWS Flagstaff AZ
Website: http://www.weather.gov

Spanish

Event: Flash Flood Warning
Onset: 2026-10-21 23:31:00 UTC
Message expires: 2026-10-22 05:00:00 UTC
Expected end: 2026-10-22 05:00:00 UTC
Category: Meteorological
Urgency: Immediate
Severity: Severe
Certainty: Likely
Response: Avoid

Wireless alert

Servicio Nacional de Meteorologia: AVISO DE INUNDACIONES REPENTINAS en efecto para esta area hasta las 10:00 PM MST. Esta es una situacion peligrosa y amenaza la vida. No intente viajar a menos que sea para abandonar un area propensa a inundaciones o bajo una orden de desalojo.

Affected areas

Coconino County, AZ

Public contact

Issuer: NWS Flagstaff AZ
Website: http://www.weather.gov

Message record

Received: 2026-10-21 23:31:25 UTC
Issue to receipt: ~25s
CAP status: Actual
CAP message type: Update
Lifecycle: Updated
Source: NWWS-OI
Feed: NWWS
Recovered: No

CAP routing and identity

ULID: 01M5GCW97G8763XJZ3X481G5VZ
Identifier: urn:oid:2.49.0.1.840.0.6f197b790cd28da52c0aa4c2b62462aa41d7fa0b.001.1
Sender: [email protected]
Scope: Public
CAP source: 211803 v2.3.0
Handling codes: IPAWSv1.0
Issuing office: NWS Flagstaff AZ
AWIPS ID: CAPFGZ
NWWS sequence: nwws_processor.8881
WMO heading: XOUS55
WMO data type: CAP alert message XML (XO)
WMO geography: United States (US)
WMO bulletin number: 55

References

Identifier: urn:oid:2.49.0.1.840.0.778cbe8427fe01dbcfe739748292c22c776e0654.001.1
Sender: [email protected]
Sent: 2026-10-21 21:26:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.167b1b6578d02c2fcb6207caf897daf2dc5c6681.001.1
Sender: [email protected]
Sent: 2026-10-21 18:02:00 UTC

English

Event codes

Name	Value
SAME	FFW
NationalWeatherService	FFW

Parameters

Name	Value
AWIPSidentifier	FFWFGZ
WMOidentifier	WGUS55 KFGZ 212331
flashFloodDamageThreat	CONSIDERABLE
BLOCKCHANNEL	EAS
BLOCKCHANNEL	NWEM
EAS-ORG	WXR
VTEC	/O.EXT.KFGZ.FF.W.0193.000000T0000Z-261022T0500Z/
eventEndingTime	2026-10-21T22:00:00-07:00
WEAHandling	Imminent Threat
expiredReferences	[email protected],urn:oid:2.49.0.1.840.0.167b1b6578d02c2fcb6207caf897daf2dc5c6681.001.1,2026-10-21T11:02:00-07:00
CMAMtext	NWS: FLASH FLOOD WARNING this area til 10:00 PM MST. Avoid flooded areas.
CMAMlongtext	National Weather Service: A FLASH FLOOD WARNING is in effect for this area until 10:00 PM MST. This is a dangerous and life-threatening situation. Do not attempt to travel unless you are fleeing an area subject to flooding or under an evacuation order.

Spanish

Event codes

Name	Value
SAME	FFW
NationalWeatherService	FFW

Parameters

Name	Value
AWIPSidentifier	FFWFGZ
WMOidentifier	WGUS55 KFGZ 212331
flashFloodDamageThreat	CONSIDERABLE
BLOCKCHANNEL	EAS
BLOCKCHANNEL	NWEM
EAS-ORG	WXR
VTEC	/O.EXT.KFGZ.FF.W.0193.000000T0000Z-261022T0500Z/
eventEndingTime	2026-10-21T22:00:00-07:00
WEAHandling	Imminent Threat
expiredReferences	[email protected],urn:oid:2.49.0.1.840.0.167b1b6578d02c2fcb6207caf897daf2dc5c6681.001.1,2026-10-21T11:02:00-07:00
CMAMtext	SNM: AVISO DE INUNDACIONES REPENTINAS hasta 10:00 PM MST. Evite areas inundadas.
CMAMlongtext	Servicio Nacional de Meteorologia: AVISO DE INUNDACIONES REPENTINAS en efecto para esta area hasta las 10:00 PM MST. Esta es una situacion peligrosa y amenaza la vida. No intente viajar a menos que sea para abandonar un area propensa a inundaciones o bajo una orden de desalojo.

Locations

English

Location data

Coconino County, AZ

Name	Value
SAME	004005
UGC	AZC005

Polygons: 35.88,-111.44 35.89,-111.45 35.93,-111.43 35.99,-111.43 36.08,-111.37 36.11,-111.27 36.12,-111.16 36.15,-111.09 36.17,-110.97 36.17,-110.77 36.14,-110.77 36.14,-110.97 36.13,-111.08 36.1,-111.15 36.09,-111.27 36.06,-111.35 35.98,-111.41 35.92,-111.41 35.88,-111.44

Spanish

Location data

Coconino County, AZ

Name	Value
SAME	004005
UGC	AZC005

Polygons: 35.88,-111.44 35.89,-111.45 35.93,-111.43 35.99,-111.43 36.08,-111.37 36.11,-111.27 36.12,-111.16 36.15,-111.09 36.17,-110.97 36.17,-110.77 36.14,-110.77 36.14,-110.97 36.13,-111.08 36.1,-111.15 36.09,-111.27 36.06,-111.35 35.98,-111.41 35.92,-111.41 35.88,-111.44