Key facts
- Alert
- Flash Flood Warning (severe)
- Issued by
- National Weather Service, Tucson AZ
- Areas
- Cochise, AZ; Graham, AZ; Pima, AZ; Pinal, AZ; Santa Cruz, AZ
- Places
- Tucson, Sahuarita, Green Valley, Oracle, Mammoth, Tubac, Davis-Monthan Air Force Base, Tanque Verde, Vail, Corona De Tucson, South Tucson, San Manuel
- In effect
- until 2:00 PM MST, Nov 1, 2026
- Damage threat
- Considerable
- Detection
- Radar and gauge indicated
What the National Weather Service says
“Between 1 and 2 inches of rain have fallen.”
NWS Tucson AZ, Flash Flood Warning, 10:49 AM MST Nov 1, 2026 · official alert
“Multiple swift water rescues have been reported, use caution when driving.”
NWS Tucson AZ, Flash Flood Warning, 10:49 AM MST Nov 1, 2026 · official alert
“Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.”
NWS Tucson AZ, Flash Flood Warning, 10:49 AM MST Nov 1, 2026 · official alert
What to do
Do not drive into flooded roads, washes or underpasses. The National Weather Service says just 6 inches of moving water can knock you down, and 1 foot of moving water can sweep a vehicle away. Turn around and find another route.
Never drive around barricades. Low-water crossings named in the warning, such as Harrison Rd at Pantano Wash and Wentworth Rd at Tanque Verde Wash, can flood quickly and hide damaged pavement.
If water is rising where you are, move to higher ground right away. Stay out of creeks, washes and canyons, including Sabino Canyon and Mount Lemmon areas, until the water goes down.
Keep checking for updates from the National Weather Service. Additional rainfall amounts up to 1 inch are possible in the warned area, so conditions can change.
Context
FEMA flood-insurance records show 586 claims in Pima County, 116 in Cochise County and 43 in Graham County between 1978 and 2026. These counts cover only homes and businesses that had federal flood insurance, so actual flood losses in these areas have been larger than the claims suggest.
Pima and Graham counties were both part of federal disaster declaration 1660, issued in 2006 for severe storms and flooding. That shows heavy rain in this region has caused damage serious enough to need federal help before.
Updates
- NWS Tucson AZ issued the flash flood warning until 2:00 PM MST.
History here
Cochise County: 116 flood insurance claims in FEMA's National Flood Insurance Program records since 1978, most recent 2026.
Graham County: 43 flood insurance claims in FEMA's National Flood Insurance Program records since 1978, most recent 2026.
Graham County: recent federal disaster declarations
- DR-1660 (2006): severe storms and flooding
Pima County: 586 flood insurance claims in FEMA's National Flood Insurance Program records since 1978, most recent 2026.
Pima County: recent federal disaster declarations
- DR-1660 (2006): severe storms and flooding
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Questions
- Is there a flash flood warning in Tucson, Arizona?
- Yes. The National Weather Service in Tucson has a Flash Flood Warning that includes Tucson, South Tucson, Catalina Foothills, Tanque Verde and Vail.
- When does the Tucson flash flood warning end?
- The warning is in effect until 2:00 PM MST on Sunday, November 1, 2026. It was last updated at 10:49 AM MST.
- How much rain has fallen in the Tucson area?
- Radar and automated rain gauges showed between 1 and 2 inches of rain had fallen, with additional amounts up to 1 inch possible. The National Weather Service called the flooding life threatening and reported multiple swift water rescues.
Sources
- NWS Tucson AZ: Flash Flood Warning, Nov 1, 2026 weather.gov
- FEMA OpenFEMA: NFIP claims and disaster declarations fema.gov
How this page is made. The Herebeat Hazard Desk builds event pages from official U.S. government data (National Weather Service, USGS, FEMA). The text is written with AI from that data; every number and quote is checked against the official source automatically before publishing, and the page is updated when the agency updates the event. The official source is always the reference. Spotted a mistake? info@herebeat.app. About the Hazard Desk.