Severe Flood ● Active
Flood Watch issued October 20 at 12:37AM MST until October 22 at 11:00PM MST by NWS Flagstaff AZ, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...All of northern and central Arizona.
* WHEN...From late tonight 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 will bring a deep surge of subtropical and
tropical moisture into our region. Showers and thunderstorms will
develop across much of northern and central Arizona early
Wednesday morning and continue through Thursday evening. Stronger
thunderstorms will bring threats of Flash Flooding, while more
prolonged rainfall could lead to elevated flow in streams,
rivers, and washes.
- Additional information is available at weather.gov/flagstaff.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Kaibab Plateau; Marble and Glen Canyons; Grand Canyon Country; Coconino Plateau; Yavapai County Mountains; Northeast Plateaus and Mesas Hwy 264 Northward; |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-10-21T06:00:00-07:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportThis event as JSON · API and licence
Source updated 1 hour ago (Oct 20, 2026 07:39 UTC) · we last heard from WMO Alert Hub (national weather services) 39 seconds ago
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About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Kaibab Plateau; Marble and Glen Canyons; Grand Canyon Country; Coconino Plateau; Yavapai County Mountains; Northeast Plateaus and Mesas Hwy 264 Northward;
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Flood preparation, evacuation decisions, and the dangers of driving or walking through floodwater.
Open Flood Safety Guide →Earlier flood events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.