Unrated tornado, Marsh, Arizona, September 12, 2025

1. EF065 to 85 mph

   Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

2. EF186 to 110 mph

   Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

3. EF2111 to 135 mph

   Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

4. EF3136 to 165 mph

   Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

5. EF4166 to 200 mph

   Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

6. EF5over 200 mph

   Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

7. Unratedthis tornado

   The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

Rating

Unrated

Date

September 12, 2025

Touchdown

10:11 AM MST (17:11 UTC)

Path length

0.0 miles (0.0 km)

Path width

1 yards (1 m)

Deaths

0

Injuries

0

County

Pima County

Touchdown point

32.113, -110.571

Lift-off point

32.113, -110.571

Record number

2509121111-01

A very active monsoon period occurred September 12th and September 13th across Southeastern Arizona. Strong to severe thunderstorms began in the late morning on September 12th and continued through the overnight hours of September 13th. Severe thunderstorms were able to produce hail ranging from 1 inch to an estimated 2.75 inches in diameter and measured wind gusts of 60 to 63 mph. Thunderstorm winds caused a semi-truck driving on Interstate 10 to be overturned, with no injury. Additionally, a landspout tornado near Vail, Arizona was reported with no injury or damage to property. Heavy rainfall due to thunderstorm activity led to water running over washes and roadways causing the death of an individual in Benson, AZ in a swift water rescue. Additionally, the running water caused damage to roadways in Benson, AZ.

Multiple photos of landspout tornado near a remote area of the Rincon Mountains near Vail, AZ. The tornado occurred in a remote area that would be difficult to survey. Tornado path and width estimated. No damage or injury reported.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The Storm Prediction Center had this point in a Marginal Risk. The outlook in force was issued at 16:39 UTC.

SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.

The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.

The Tucson radar (KEMX), 25 km away, was scanning. The volume nearest the touchdown began at 17:11 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

Local storm reports within 60 km of the path, in the three hours either side.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

The live radar over the trackEvery 2025 tornado in ArizonaEvery tornado in Arizona since 1950Warnings in force in Arizona nowThe forecast where you are

1 more were confirmed in the United States that day.

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.