EF1 tornado, Stanton to Tenville, Iowa, June 11, 2026

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 mphthis tornado

   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. Unrated

   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, as surveyed

EF1, preliminary

Date

June 11, 2026

Touchdown

6:08 AM CDT (11:08 UTC)

Lifted

6:16 AM CDT (11:16 UTC)

On the ground

8 minutes

Path length

5.7 miles (9.1 km)

Path width

0 yards (0 m)

Deaths

0

Injuries

0

County

Montgomery County

Touchdown point

40.969, -95.057

Lift-off point

40.986, -94.953

Highest wind the damage implies

105 mph

Surveyed by

NWS OAX

Survey last edited

June 22, 2026

Record number

None yet. SPC numbers 2026 in the spring of 2027.

At approximately 6:08 AM, a tornado developed east of Stanton,

Iowa, near 230th Street and Q Avenue, and moved northeast. The

tornado produced tree damage on the west side of Viking Lake,

including large broken limbs and uprooted trees, with estimated

winds of 70 to 85 mph. The tornado then crossed to the east side

of Viking Lake, where it uprooted two trees, brought down

numerous large limbs, caused minor siding and roof damage to a

home near 230th Street and Raspberry Drive, and snapped

approximately 10 pine tree trunks near S Avenue and Aldersgate

Drive. Based on this damage, winds were estimated at 90 mph. The

tornado then continued northeast, collapsing the walls of an

outbuilding, snapping a tree trunk, and bringing down power lines

near U.S. Highway 24 and T Avenue. Based on this damage, peak

winds were estimated around 105 mph. The tornado then lofted

grain bins from over a mile away into the interchange of Highway

71 and Highway 34. The tornado dissipated at approximately

6:16 AM.

Written by NWS OAX in the NWS Damage Assessment Toolkit. A survey is revised as better evidence arrives.

41 damage points were recorded along this path by NWS OAX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 105 mph.

• One tree uprooted, other large limbs down.
• about 10 pine tree trunks snapped
• Two trees uprooted and numerous other large limbs down. Minor damage to homes, siding and roof.
• Trunk snapped, large out building collapse, power lines down

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

On the morning of June 11, 2026, severe thunderstorms pushing across southeast Nebraska into southwest Iowa produced tornadoes, large hail, damaging wind gusts, and flash flooding. The synoptic setup for the event featured broad upper-level troughing over the Northern High Plains, with a strong shortwave trough pushing into eastern Nebraska early in the day. This feature provided upper-level dynamic support for the amplification of the low-level jet (LLJ) alongside subsequent low-level warm air and moisture advection. This ultimately generated the forcing necessary for storm development, which began around 1:00 AM to 2:00 AM local time over central Nebraska.||As the LLJ strengthened overnight, a surface frontal boundary began to advance northward into southeast Nebraska. Isentropic upglide to the north of the surface front led to destabilization above the boundary layer. This elevated instability, combined with 40 to 55 knots of 1-3 km bulk shear along the nose of the LLJ, led to the organization of a strong mesoscale convective system (MCS) that tracked across eastern Nebraska and into southwest Iowa.||As the storms initally pushed into eastern Nebraska, the first report of large hail���measuring up to 1.25 inches in diameter���surfacing was reported in Seward County at 2:19 AM CST. By 3:00 AM CST, the system intensified and progressed eastward into Lancaster County, producing an initial 74 mph wind gust near Valparaiso and dropping hail up to 2.50 inches in diameter. As the storms tracked directly through Lancaster County between 3:11 AM and 4:01 AM CST, they generated widespread wind damage, snapping trees and downing powerlines. One notable incident occurred at 3:46 AM CST when an estimated 10-inch diameter tree limb fell onto a home, resulting in an injury. The system then continued east toward the Missouri River, pushing into Cass County around 4:04 AM CST where it immediately began causing structural damage and dropped its first reported tornadoes shortly after 4:10 AM CST.||Crossing into southwest Iowa around 4:30 AM CST, the system's focus shifted heavily toward pockets of damaging wind gusts, brief tornadoes and flash flooding. Tornadoes were reported consecutively across Fremont, Mills, Page, and Montgomery counties between 4:29 AM CST and 5:11 AM CST. As the morning progressed, intense straight-line winds up to 90 mph continued in a swatch across eastern Page and Montgomery counties in Iowa, particularly between Coburg and Villisca, IA. By 5:26 AM CST, the severe wind and hail threats began to transition into a significant flash flood event. Heavy downpours���including a staggering 6 inches of rain reported in Sidney, Iowa by 6:00 AM CST���led to flooded creeks, residential yards, and submerged roadways across Page and Fremont counties as the storms finally pushed out of the area.

At approximately 5:08 AM CST, a tornado developed east of Stanton, Iowa, near 230th Street and Q Avenue, and moved northeast. The tornado produced tree damage on the west side of Viking Lake, including large broken limbs and uprooted trees, with estimated winds of 70 to 85 mph. The tornado then crossed to the east side|of Viking Lake, where it uprooted two trees, brought down numerous large limbs, caused minor siding and roof damage to a home near 230th Street and Raspberry Drive, and snapped approximately 10 pine tree trunks near S Avenue and Aldersgate Drive. Based on this damage, winds were estimated at 90 mph. The tornado then continued northeast, collapsing the walls of an outbuilding, snapping a tree trunk, and bringing down power lines near U.S. Highway 24 and T Avenue. Based on this damage, peak winds were estimated around 105 mph. The tornado then lofted grain bins from over a mile away into the interchange of Highway 71 and Highway 34. The tornado dissipated at approximately 5:16 AM CST.

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

29 minutes of warning. NWS OAX issued a tornado warning for this county at 10:39 UTC, 29 minutes before the tornado touched down, in force until 11:15 UTC.

The county was under a severe thunderstorm watch, issued at 07:13 UTC and running to 11:53 UTC.

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, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 06:19 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 Omaha radar (KOAX), 120 km away, was scanning. The volume nearest the touchdown began at 11:10 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 2026 tornado in IowaEvery tornado in Iowa since 1950Warnings in force in Iowa nowThe forecast where you are

65 more have been surveyed in the United States that day, so far.

All 66 of them

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. A survey can be revised, so the rating, the path and the casualties can all still change.

NWS Damage Assessment Toolkit, the record the survey teams file from the damage, and NOAA Storm Prediction Center storm reports. Neither is the official database for 2026, which SPC publishes in the spring of 2027.