Enter any address in Coconino County, Arizona to see its FEMA flood zone
Flash flooding from thunderstorms is the dominant flood character in Coconino County. Between 1993 and 2023, NOAA Storm Events data recorded 278 flash flood events and 55 general flood events. For example, in June 2025, unusual moisture combined with a low-pressure system to trigger thunderstorms, causing flash flooding on the Havasupai Reservation and in portions of the Grand Canyon. Later that year, in October 2025, remnant moisture from tropical cyclones contributed to heavy rain and flash flooding along creeks and streams.
National Flood Insurance Program (NFIP) claims data shows that properties in Zone A experienced an average water depth of 1.2 feet with an average payout of $19,110. Properties in Zone X had an average water depth of 13.8 feet with an average payout of $15,659. Homeowners in Zone A and Zone X, as well as those in less defined zones like X_UNSHADED, X_SHADED, and UNKNOWN, should pay close attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
28 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Coconino County, Arizona has recorded 333 flood-related events since 1996 according to NOAA's Storm Events Database, including 278 flash floods and 55 river or area floods. The county has received 24 federal disaster declarations, 5 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1970–2022)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Pipeline Fire | Fire | Jun 12, 2022 |
| Tunnel 2 Fire | Fire | Apr 19, 2022 |
| Severe Storms And Flooding | Flood | Jul 22, 2021 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Museum Fire | Fire | Jul 22, 2019 |
| Tinder Fire | Fire | Apr 27, 2018 |
| Slide Fire | Fire | May 20, 2014 |
| Severe Storms And Flooding | Severe Storm | Jul 20, 2010 |
| Shultz Fire | Fire | Jun 20, 2010 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Sep 27, 2025 | 0.00K |
| Flash Flood | Aug 26, 2025 | 0.00K |
| Flash Flood | Aug 24, 2025 | 0.00K |
| Flash Flood | Jul 17, 2025 | 0.00K |
| Flash Flood | Jul 16, 2025 | 0.00K |
| Flash Flood | Oct 11, 2025 | 0.00K |
| Flood | Oct 11, 2025 | 0.00K |
| Flash Flood | Oct 10, 2025 | 0.00K |
| Flash Flood | Aug 10, 2025 | 0.00K |
| Flash Flood | Oct 9, 2025 | 0.00K |
Flash Flood — Sep 27, 2025
An early season low pressure system moved into southeastern California and cut off from the main steering flow. Leftover monsoon moisture from the subtropics combined with the stalled low pressure system and brought a 4 day period of severe weather and flash flooding.
Flash Flood — Aug 26, 2025
Deep monsoon moisture led to multiple thunderstorms throughout the day. Some of the storms produced heavy rain that led to flash flooding.
Flash Flood — Aug 24, 2025
Strong monsoon thunderstorms caused wind damage in Yavapai County and some flash flooding in northern Coconino County.
Flash Flood — Jul 17, 2025
Heavy rain upstream caused high runoff in the Paria River watershed.
Flash Flood — Jul 16, 2025
Deep monsoon moisture led to heavy rainfall and some areas of flash flooding.
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Coconino County, Arizona:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in Coconino County, Arizona that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.