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Flagstaff weather alerts

4 active alerts for Flagstaff, Arizona right now: a Severe Thunderstorm Warning, a Severe Thunderstorm Watch, a Flood Warning, and 1 more.

44 in the last 30 days 210 in 12 months (since Aug 30) most common: Severe Thunderstorm Warning Get alerts on your phone →

Active alerts for Coconino County

NWS issues alerts by county; Flagstaff is in Coconino County. Refreshed every few minutes; times in MST.

Severe Immediate

Severe Thunderstorm Warning

Issued Thu, Oct 22, 9:34 AM MST by NWS Flagstaff AZ Until Thu, Oct 22, 10:00 AM MST (in 18 min)

Area: Coconino, AZ

At 934 AM MST, a severe thunderstorm was located near Starlight Pines, or 28 miles north of Payson, moving northeast at 40 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Starlight Pines, Chavez Mountain, Long Lake, Tremaine Lake, Soldiers Lake, Jacks Canyon and Sunset Pass....

What it means: A storm with hail of 1 inch or larger, winds of 58 mph or more, or both, is occurring or imminent. Move indoors and away from windows.

Full alert with map and forecast →
Severe Future

Severe Thunderstorm Watch

Issued Thu, Oct 22, 2:15 AM MST by NWS Flagstaff AZ Until Thu, Oct 22, 10:00 AM MST (in 18 min)

Area: Apache, AZ; Coconino, AZ; Navajo, AZ; Yavapai, AZ

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 691 UNTIL 10 AM MST /11 AM MDT/ THIS MORNING. SEVERE THUNDERSTORM WATCH 690 HAS EXPIRED. THE NEW WATCH IS VALID FOR THE FOLLOWING AREAS IN ARIZONA THE NEW WATCH INCLUDES 4 COUNTIES IN NORTH CENTRAL ARIZONA COCONINO NAVAJO IN NORTHEAST ARIZONA APACHE IN WEST CENTRAL ARIZONA YAVAPAI THIS INCL...

What it means: Conditions are favourable for severe thunderstorms with large hail or damaging wind. Keep an eye on the sky and on warnings.

Full alert with map and forecast →
Severe Immediate

Flood Warning

Issued Thu, Oct 22, 6:44 AM MST by NWS Flagstaff AZ Until Thu, Oct 22, 2:00 PM MST (in 4 hr)

Area: Coconino, AZ

* WHAT...Flooding caused by excessive rainfall is expected along Moenkopi Wash and the Little Colorado River. * WHERE...Moenkopi Wash and the Little Colorado River from Cameron to the Colorado River confluence. * WHEN...Until 200 PM MST /300 PM MDT/ Tonight. * IMPACTS...Flooding of Moenkopi Wash and the Little Colorado River is occurring. Further rises in...

What it means: Flooding of rivers, streams or low-lying areas is occurring or expected. Avoid flooded roads and monitor river levels.

Full alert with map and forecast →
Severe Future

Flood Watch

Issued Wed, Oct 21, 5:53 AM MST by NWS Flagstaff AZ Until Thu, Oct 22, 11:00 PM MST (in 13 hr)

Area: Kaibab Plateau; Marble and Glen Canyons; Grand Canyon Country; Coconino Plateau; Yavapai County Mountains; Northeast Plateaus and Mesas Hwy 264 Northward; Chinle Valley; Chuska Mountains and Defiance Plateau; Little C...

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...All of northern and central Arizona. * WHEN...Through Thursday evening. * IMPACTS...Flash flooding will be possible in creeks, normally dry washes, swimming holes, and over recently burned areas. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - An upper-level trough w...

What it means: Conditions are favourable for flooding. Have a plan in case a warning is issued.

Full alert with map and forecast →

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Where

Coconino County on the map

Alert polygons are NWS's own. Forecast Bar's radar shows the same warnings over live precipitation, with future radar and lightning. See the radar.

Last 30 days

Recent alerts for Coconino County

AlertIssuedEndedIssued by
Severe Thunderstorm Warning 9:28 AM 10:00 AM Flagstaff AZ
Severe Thunderstorm Warning 9:22 AM 9:30 AM Flagstaff AZ
Severe Thunderstorm Warning 9:19 AM 9:30 AM Flagstaff AZ
Severe Thunderstorm Warning 9:16 AM 9:30 AM Flagstaff AZ
Severe Thunderstorm Warning 9:12 AM 9:15 AM Flagstaff AZ
Severe Thunderstorm Warning 9:11 AM 9:30 AM Flagstaff AZ
Severe Thunderstorm Warning 9:06 AM 9:30 AM Flagstaff AZ
Severe Thunderstorm Warning 8:54 AM 9:15 AM Flagstaff AZ
Severe Thunderstorm Warning 8:48 AM 9:15 AM Flagstaff AZ
Severe Thunderstorm Warning 6:27 AM 6:30 AM Flagstaff AZ
Severe Thunderstorm Warning 6:14 AM 6:30 AM Flagstaff AZ
Severe Thunderstorm Warning 6:05 AM 6:30 AM Flagstaff AZ
Flash Flood Warning 1:57 AM 2:00 AM Flagstaff AZ
Flood Warning 1:56 AM 2:00 PM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 11:38 PM 12:15 AM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 11:29 PM Oct 21, 11:30 PM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 11:14 PM Oct 21, 11:30 PM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 11:06 PM Oct 21, 11:30 PM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 11:02 PM Oct 21, 11:30 PM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 10:51 PM Oct 21, 11:00 PM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 10:28 PM Oct 21, 11:00 PM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 10:07 PM Oct 21, 10:30 PM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 9:54 PM Oct 21, 10:30 PM Flagstaff AZ
Flash Flood Warning Oct 21, 9:49 PM 2:00 AM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 9:36 PM Oct 21, 9:45 PM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 9:14 PM Oct 21, 9:45 PM Flagstaff AZ
Flash Flood Warning Oct 21, 8:27 PM 2:30 AM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 8:12 PM Oct 21, 8:15 PM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 7:50 PM Oct 21, 8:15 PM Flagstaff AZ
Severe Thunderstorm Watch Oct 21, 7:29 PM 2:00 AM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 6:43 PM Oct 21, 6:45 PM Flagstaff AZ
Tornado Warning Oct 21, 6:36 PM Oct 21, 6:45 PM Flagstaff AZ
Tornado Warning Oct 21, 6:20 PM Oct 21, 6:45 PM Flagstaff AZ
Severe Thunderstorm Watch Oct 21, 6:15 PM 2:00 AM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 6:07 PM Oct 21, 6:45 PM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 5:29 PM Oct 21, 5:30 PM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 5:27 PM Oct 21, 6:00 PM Flagstaff AZ
Flash Flood Warning Oct 21, 5:17 PM Oct 21, 8:30 PM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 5:05 PM Oct 21, 5:30 PM Flagstaff AZ
Severe Thunderstorm Warning Oct 21, 4:47 PM Oct 21, 5:00 PM Flagstaff AZ

Pattern

What Coconino County gets alerted for

Every alert that named Coconino County in the last 12 months, by type. Records begin August 30, 2026, so this fills in over the year.

Severe Thunderstorm Warning
87
Flash Flood Warning
53
Flood Watch
20
Flood Warning
14
Tornado Warning
14
Wind Advisory
10
Special Weather Statement
4
Flood Advisory
3
Severe Thunderstorm Watch
3
Freeze Warning
1
Tornado Watch
1

Plain English

What these alerts mean

A warning means the hazard is happening or about to; a watch means conditions favour it; an advisory is a lesser hazard still worth planning around.

Severe Thunderstorm Warning

A storm with hail of 1 inch or larger, winds of 58 mph or more, or both, is occurring or imminent. Move indoors and away from windows.

Severe Thunderstorm Watch

Conditions are favourable for severe thunderstorms with large hail or damaging wind. Keep an eye on the sky and on warnings.

Flood Warning

Flooding of rivers, streams or low-lying areas is occurring or expected. Avoid flooded roads and monitor river levels.

Flood Watch

Conditions are favourable for flooding. Have a plan in case a warning is issued.

Flash Flood Warning

Flash flooding is occurring or imminent. Move to higher ground; never drive into water covering a road.

Tornado Warning

A tornado has been sighted or indicated by radar. Take shelter immediately in a basement or an interior room on the lowest floor.

Wind Advisory

Sustained winds of 30 mph or more, or gusts to 45 mph, are expected. Use caution driving high-profile vehicles.

Special Weather Statement

A heads-up about conditions that do not meet warning or advisory criteria but still deserve attention, such as a strong storm, patchy fog or a brief burst of snow.

Flood Advisory

Minor flooding of streets, streams or low-lying areas is expected. Expect ponding on roads and use caution when driving.

Freeze Warning

Sub-freezing temperatures are imminent. Protect tender plants and outdoor plumbing.

Tornado Watch

Conditions are favourable for tornadoes in and near the watch area. Review your shelter plan and stay alert for warnings.

Nearby

Alerts near Flagstaff

Cities

Prescott Valley, AZ3 Peoria, AZ4 Scottsdale, AZ4 Phoenix, AZ4 Surprise, AZ4 Glendale, AZ4

Neighbouring counties in Arizona

Yavapai County3 Mohave County1 Navajo County2 Gila County3 La Paz County All of Arizona →

Questions

About Flagstaff alerts

How do I get Flagstaff weather alerts on my iPhone?

Install Forecast Bar, add Flagstaff as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for Coconino County then arrives as a push notification at the moment of issue, with Critical Alerts available for the most dangerous warnings. Forecast Bar also runs on iPad, Apple Watch, Mac and Apple TV.

Where do these alerts come from?

From the National Weather Service alert feed (api.weather.gov). NWS issues alerts by county and by forecast zone; this page lists every product that names Coconino County, the county Flagstaff sits in. Forecast Bar checks the feed continuously and this page refreshes within a few minutes of a change.

What is the difference between a watch, a warning and an advisory?

A warning means the hazard is occurring, imminent or very likely: act now. A watch means conditions are favourable for it to develop: prepare and stay informed. An advisory covers a hazard that is less serious than a warning but can still cause real inconvenience or danger if you are not ready for it.

Can I get this data as JSON?

Yes. /weather-alerts/az/flagstaff.json returns the active alerts, the last 30 days and the 12-month counts for Flagstaff, refreshed every minute. Please cache responses and credit National Weather Service as the source.

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Never find out about a Coconino County alert from this page again

Add Flagstaff in Forecast Bar and every NWS warning, watch and advisory arrives as a push notification the moment it is issued, on iPhone, iPad, Apple Watch, Mac and Apple TV.

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