Find out whether heat, monsoon flash floods or fire weather warnings are in effect in Arizona right now
1 activeFlood WarningMaricopa, AZ; Yuma, AZUntil Nov 17, 11:00 AM MST
Flood Warning issued November 11 at 11:41AM MST until November 17 at 11:00AM MST by NWS Phoenix AZ
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.
Arizona
No alerts match these filters.
What to do
Steps for the hazards currently alerted in Arizona.
Get ready
Now
If you are in a flood-prone or low-lying area, get to higher ground immediately when water starts to rise.
Source: NWS: During a flood
Decide
If conditions worsen
Evacuate immediately when water starts to rise. If told to leave, go right away. Follow orders from local emergency management.
Source: NWS: During a flood
Ride it out
During
It is never safe to drive or walk into flood waters. Six inches of fast-moving water can knock over an adult, and twelve inches of rushing water can carry away most cars. Never drive around the barriers blocking a flooded road.
Source: NWS: Turn Around Don't Drown
Recover
After, once it is safe
Stay out of floodwater and do not drive through flooded areas. Return home only when local authorities say it is safe.
Source: CDC: Returning Home After a Natural Disaster
Arizona counties with active weather alerts
2 counties have at least one National Weather Service alert in effect. An alert that covers several counties is counted in each.
| County | Active alerts | Warnings | Alert types |
|---|---|---|---|
| Maricopa County | 1 | 1 | Flood Warning |
| Yuma County | 1 | 1 | Flood Warning |
Counties are listed by the National Weather Service alert areas. What watches, warnings and advisories mean →
Arizona severe weather alerts by type
What each kind of alert means and where to see it for Arizona.
Arizona tornado watches and warnings
None active in Arizona right now. A tornado watch means tornadoes are possible.
Arizona severe thunderstorm watches and warnings
None active in Arizona right now. A severe thunderstorm has winds of 58 mph or higher, hail 1 inch across or larger, or both.
Arizona flood watches and flash flood warnings
1 active in Arizona right now. A flood watch means flooding is possible.
Arizona winter storm, ice storm, snow and blizzard warnings
None active in Arizona right now. Winter alerts run from a watch (possible within about 48 hours) to a warning (occurring or imminent) and an advisory for less serious but still inconvenient conditions.
Arizona heat advisories and extreme heat warnings
None active in Arizona right now. A heat advisory is the lower level and an extreme heat warning the higher level; both based on the heat index.
Arizona wind advisories and high wind warnings
None active in Arizona right now. A wind advisory is for strong winds; a high wind warning is for damaging winds.
Arizona red flag warnings
None active in Arizona right now. A Red Flag Warning means dangerous fire weather is expected, usually a mix of low humidity, wind and dry fuels.
Arizona tornado history: last tornado, strongest and worst on record
From the NOAA Storm Prediction Center database, 1950 through 2025.
Arizona has 302 tornadoes on record, about 4 a year, and 122 of them since 2000. That ranks Arizona number 34 among the 50 states by count. 4 were rated EF3 or stronger. They caused 3 deaths and 152 injuries.
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | 5 | 12 | 2 | 6 | 9 | 5 | 7 | 8 |
Most Arizona tornadoes have come from July through September. The single busiest month is July (19% of the total).
Counts use each tornado's starting state. Ratings before 2007 use the original Fujita scale. The database ends in 2025, so more recent tornadoes are not included.
Arizona flood map and flood warnings
1 flood alert is active in Arizona right now. Flood zones are mapped by FEMA street by street. FEMA's Flood Map Service Center lets you search an address and see its flood zone.
Arizona storm tracker: storms and events
No tracked events involve Arizona right now.
Common questions
Is there a tornado warning, winter storm warning or other weather warning in Arizona right now?
Right now Arizona has 0 tornado alerts and 0 winter storm alerts. The most serious active alert is Flood Warning, in effect for Maricopa, AZ; Yuma, AZ. It is listed until Nov 17, 11:00 AM MST. Source: National Weather Service.
Which Arizona counties have weather alerts right now?
2 Arizona counties have at least one active National Weather Service alert. The most affected: Maricopa County (1 alert, 1 warning: Flood Warning); Yuma County (1 alert, 1 warning: Flood Warning). The full table is on this page and updates every 15 minutes.
When was the last tornado in Arizona, and how many have there been since 2000?
The most recent tornado in the NOAA Storm Prediction Center database for Arizona is November 18, 2025, rated EF0. The database lists 122 Arizona tornadoes since 2000 and 302 since 1950. It runs through 2025, so it does not include later tornadoes.
What was the deadliest tornado in Arizona, and what was the strongest?
By rating, the strongest in the record is August 4, 1957, rated EF3. The deadliest is August 27, 1964, rated EF2, 2 deaths. Ratings before 2007 use the original Fujita scale.
How does Arizona rank for tornadoes among the states?
Arizona ranks 34th of 50 states by the number of tornadoes since 1950: 302 in all, about 4 a year. 4 were rated EF3 or stronger. They caused 3 deaths and 152 injuries, and the busiest year was 1972 with 17. Each tornado is counted in the state where it started.
When is tornado season in Arizona?
Most Arizona tornadoes in the record came from July through September. July is the busiest single month, with 19% of the total. Tornadoes can happen in any month.
Where do I find Arizona emergency management and National Weather Service offices?
The state agency is Arizona Department of Emergency and Military Affairs (https://dema.az.gov/). The National Weather Service offices that cover Arizona include NWS Flagstaff, AZ, NWS Phoenix, NWS Tucson Arizona, NWS Las Vegas, NV. Evacuation zones and orders come from your county or state emergency management office, not from this site.
Which Arizona cities and counties have their own alert pages?
This site has city pages for Maricopa County (Chandler, Gilbert, Glendale, Mesa and 2 more); Pima County (Tucson). Each city page shows the alerts for the center of that city.
Be ready in Arizona
Official-source guides for the weather Arizona sees most.
Cities and counties in Arizona
Live alerts and local storm history for each city, grouped by the county it is in.
Alert data comes from the National Weather Service and is refreshed every 15 minutes.