Tornadoes · United States · Iowa · 2026
EF1 tornado, Nyman to Villisca, Iowa, June 11, 2026
From Nyman to Villisca, this EF1 tornado ran 1.9 miles across Page County on June 11, 2026, touching down at 6:11 AM CDT and reaching 50 yards wide. It killed nobody.
Preliminary. This is NWS OAX's damage survey, filed in the Damage Assessment Toolkit as South of Villisca Tornado. The rating, the path and the casualties are the survey's and can change while it is revised. The Storm Prediction Center compiles the official record of 2026 from these surveys and publishes it in the spring of 2027; this page moves to that tornado's permanent address when it does.
The rating scale
Tracks are drawn in the color of the rating. The Enhanced Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.
EF065 to 85 mph
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mphthis tornado
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
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.
EF4166 to 200 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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.
The survey
- Rating, as surveyed
- EF1, preliminary
- Date
- June 11, 2026
- Touchdown
- 6:11 AM CDT (11:11 UTC)
- Lifted
- 6:13 AM CDT (11:13 UTC)
- On the ground
- 2 minutes
- Path length
- 1.9 miles (3.0 km)
- Path width
- 50 yards (46 m)
- Deaths
- 0
- Injuries
- 0
- County
- Page County
- Touchdown point
- 40.888, -94.967
- Lift-off point
- 40.894, -94.932
- Highest wind the damage implies
- 90 mph
- Surveyed by
- NWS OAX
- The office's name for it
- South of Villisca Tornado
- Survey last edited
- June 14, 2026
- Record number
- None yet. SPC numbers 2026 in the spring of 2027.
What the survey found
A brief tornado developed south of Villisca at approximately 6:11 AM. The tornado would track along 110th St between V Ave and Willow Ave before dissipating near the county line at 6:13 AM. Along the tornado's path, trees were damaged, a farm outbuilding lost part of the roof and wall, and a carport was destroyed. The tornado had estimated wind speeds of 90 mph earning a rating of EF1. The maximum estimated width of the tornado was approximately 50 yards.
Written by NWS OAX in the NWS Damage Assessment Toolkit. A survey is revised as better evidence arrives.
The damage survey
40 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.
What the Weather Service recorded
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 4:58 AM CST, a tornado developed just east of Coburg, Iowa, near 105th Street and K Avenue, and moved east-southeast. The tornado produced sporadic tree damage with an estimated wind speeds of 70 mph. The tornado would then track east, parallel to 110th St. Along the path, trees and farm outbuildings received damage. Max wind speeds were estimated at low-end EF1 intensity of 90 mph. The tornado would dissipate at approximately 5:08 AM CST near 110th St and R Ave. The estimated maximum width was approximately 100 yards.
A brief tornado developed south of Villisca at approximately 5:11 AM CST. The tornado would track along 110th St between V Ave and Willow Ave before dissipating near the county line at 5:13 AM CST. Along the tornado's path, trees were damaged, a farm outbuilding lost part of the roof and wall, and a carport was destroyed. The tornado had estimated wind speeds of 90 mph earning a rating of EF1. The maximum estimated width of the tornado was approximately 50 yards.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
The warnings
32 minutes of warning. NWS OAX issued a tornado warning for this county at 10:39 UTC, 32 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.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 19:13 UTC | 01:45 UTC | Tornado Watch | OAX |
| 07:13 UTC | 11:53 UTC | Severe Thunderstorm Watch | OAX |
| 10:02 UTC | 10:45 UTC | Severe Thunderstorm Warning | OAX |
| 10:28 UTC | 11:15 UTC | Severe Thunderstorm Warning | OAX |
| 10:39 UTC | 11:15 UTC | Tornado Warning | OAX |
| 10:39 UTC | 11:15 UTC | Tornado Warning | OAX |
| 10:49 UTC | 13:34 UTC | Flash Flood Warning | OAX |
| 10:52 UTC | 11:30 UTC | Severe Thunderstorm Warning | OAX |
| 11:00 UTC | 11:30 UTC | Tornado Warning | OAX |
| 11:25 UTC | 11:45 UTC | Severe Thunderstorm Warning | OAX |
| 11:29 UTC | 13:35 UTC | Flash Flood Warning | OAX |
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 forecast that day
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 air that afternoon
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.
Omaha, NE (KOAX), 00:00Z
11.2 hours before the tornado, 128 km from the path. June 11, 2026.
- Mixed-layer CAPE
- 90 J/kg
- Mixed-layer CIN
- -68 J/kg
- Surface CAPE
- 691 J/kg
- Mixed-layer LCL
- 2862 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
- 0-3 km lapse rate
- 9.1 K/km
The radar
The Omaha radar (KOAX), 128 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.
What was reported nearby
Local storm reports within 60 km of the path, in the three hours either side.
| Time (UTC) | Report | Where | County | Remark |
|---|---|---|---|---|
| 10:07 UTC | HAIL 2 | Shenandoah | Page, IA | Delayed report received via social media of hail estimated up to 2 inches in diameter. Time estimated with radar. |
| 10:19 UTC | HAIL 2.5 | Yorktown | Page, IA | Corrects time from previous hail report from Yorktown. |
| 10:19 UTC | HAIL 3 | 1 E Yorktown | Page, IA | Delayed report received via social media of hail measured up to 3 inches in diameter with corresponding picture. Time estimated with radar. |
| 10:19 UTC | HAIL 3.5 | Yorktown | Page, IA | Corrects time from previous hail report from Yorktown. Delayed emergency management report of a measured hailstone 3.5 inches in diameter, shown in a photo next to a ruler. Time estimated with radar. |
| 10:30 UTC | HAIL 2.5 | Yorktown | Page, IA | |
| 10:30 UTC | HAIL 3.5 | Yorktown | Page, IA | Delayed emergency management report of a measured hailstone 3.5 inches in diameter, shown in a photo next to a ruler. Time estimated with radar. |
| 10:42 UTC | TSTM WND GST 73 | 4.2 Nne Tabor | Mills, IA | |
| 10:45 UTC | TSTM WND DMG | Malvern | Mills, IA | Delayed report received via social media of several large tree branches down in Malvern, Iowa. Time estimated with radar. |
| 10:45 UTC | TSTM WND DMG | Malvern | Mills, IA | Report of damage to a self-serve gas station, with one third of the roof a metal building removed by straight line winds. Time estimated from radar. |
| 10:47 UTC | TSTM WND GST 80 | 2.1 Sse Silver City | Mills, IA | |
| 10:55 UTC | TSTM WND GST 63 | 3.0 Nnw Coburg | Montgomery, IA | |
| 10:55 UTC | TSTM WND GST 90 | Essex | Page, IA | |
| 10:56 UTC | TSTM WND DMG | Essex | Page, IA | Trees blocking hwy 48 south of Essex. |
| 10:58 UTC | TORNADO | 4 Ese Coburg | Page, IA | At approximately 5:58 AM, a tornado developed just east of Coburg, Iowa, near 105th Street and K Avenue, and moved east- southeast. The tornado produced sporadic tree damage with an estimated wind speeds of 70 mph. The t |
| 10:58 UTC | TORNADO | Coburg | Montgomery, IA | Small tree and debris in Coburg. |
| 11:01 UTC | TSTM WND GST 71 | 4.9 Sse Coburg | Page, IA | |
| 11:06 UTC | TSTM WND GST 59 | 9.0 Ese Oakland | Pottawattamie, IA | |
| 11:07 UTC | TSTM WND DMG | Coburg | Montgomery, IA | 60 mph wind estimated. quarter sized hail and large limbs down. |
| 11:08 UTC | TORNADO | 3 Ese Stanton | Montgomery, IA | 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 |
| 11:11 UTC | TORNADO | 3 S Villisca | Page, IA | A brief tornado developed south of Villisca at approximately 6:11 AM. The tornado would track along 110th St between V Ave and Willow Ave before dissipating near the county line at 6:13 AM. Along the tornado`s path, tree |
| 11:12 UTC | TSTM WND DMG | 3 Sw Villisca | Montgomery, IA | Emergency management report of several trees and large branches down along the Page/Montgomery county line. Power lines across roads. The majority of N/S roads are blocked by trees at some point in this area. Time estima |
| 11:12 UTC | TSTM WND GST 66 | 3.8 Se Stanton | Montgomery, IA | |
| 11:13 UTC | TSTM WND GST 58 | 4.5 W Hepburn | Page, IA | |
| 11:14 UTC | TSTM WND GST 73 | 0.5 Wnw Villisca | Montgomery, IA | |
| 11:15 UTC | TSTM WND DMG | Atlantic | Cass, IA | Several reports of trees and power poles down across Atlantic found on social media. Time estimated from radar. |
| 11:15 UTC | TSTM WND DMG | 3 N Villisca | Montgomery, IA | Delayed report of damaged grain bins blown near the interchange of US-34 and US-71, north of Villisca. Time estimated with radar. |
| 11:18 UTC | TSTM WND GST 65 | Griswold | Cass, IA | Measured from personal weather station. |
| 11:20 UTC | TSTM WND DMG | 1 Nw Corning | Adams, IA | Tree down on building. Time estimated by radar. |
| 11:24 UTC | TSTM WND DMG | 1 Nne Atlantic | Cass, IA | NWS COOPERATIVE WEATHER OBSERVER REPORTS THUNDERSTORM WINDS LIFTED THE STAINLESS STEEL RAIN GAGE OUT OF ITS HOLDER AND TOSSED IT AROUND 30 FT AWAY. TIME ESTIMATED FROM RADAR. |
| 11:24 UTC | HAIL 1 | New Market | Taylor, IA | Delayed report. |
| 11:26 UTC | FLASH FLOOD | Shenandoah | Page, IA | Street Flooding in town. |
| 11:27 UTC | FLOOD | Clarinda | Page, IA | Report from mPING: River/Creek overflowing; Cropland/Yard/Basement Flooding. |
| 11:30 UTC | TSTM WND DMG | Corning | Adams, IA | Damage reported in Corning, will further assess source of damage. |
| 11:30 UTC | TSTM WND DMG | Corning | Adams, IA | Received photo of several tree limbs down. Time estimated from radar. |
| 11:30 UTC | FLASH FLOOD | 1 Wsw Sidney | Fremont, IA | Delayed Report: Water overflowing a road with water entering front yard as well. |
| 11:30 UTC | FLASH FLOOD | Clarinda | Page, IA | Delayed report from the public of several inches of water over roadways through town. |
| 11:30 UTC | FLASH FLOOD | Shenandoah | Page, IA | Delayed report from the public of several inches of water over residential roadways and additional pooling in yards. |
| 11:31 UTC | TSTM WND GST 65 | Shambaugh | Page, IA | |
| 11:34 UTC | HAIL 1 | Clarinda | Page, IA | Report from mPING: Quarter (1.00 in.). |
| 11:36 UTC | FLASH FLOOD | Essex | Page, IA | Public report of low lying flooding in Essex, Iowa including water in roadways and covering a park. Knee deep water at the intersection of Illinois and Dennison St. |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2026 tornado in IowaEvery tornado in Iowa since 1950Warnings in force in Iowa nowThe forecast where you are
The other tornadoes of June 11, 2026
65 more have been surveyed in the United States that day, so far.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| June 11 | 5:10 AM CDT | EF1 | Cass, NE | 2.0 | 40 | |||
| June 11 | 5:15 AM CDT | EF0 | Cass, NE | 0.3 | 20 | |||
| June 11 | 5:21 AM CDT | EF1 | Cass, NE | 2.0 | 40 | |||
| June 11 | 5:29 AM CDT | EF1 | Fremont, IA | 1.5 | 30 | |||
| June 11 | 5:33 AM CDT | EF0 | Mills, IA | 1.7 | 20 | |||
| June 11 | 5:58 AM CDT | EF1 | Page, IA | 7.2 | 100 | |||
| June 11 | 6:08 AM CDT | EF1 | Montgomery, IA | 5.7 | 0 | |||
| June 11 | 6:08 AM CDT | EF1 | Montgomery, IA | 5.7 | 0 | |||
| June 11 | 6:26 AM CDT | EF2 | Adams, IA | 6.0 | 200 | |||
| June 11 | 4:05 PM CDT | Unrated | Washington, IA | 0.1 | 0 | |||
| June 11 | 4:15 PM CDT | Unrated | Hancock, IL | 0.2 | 0 | |||
| June 11 | 4:54 PM CDT | Unrated | McDonough, IL | 0.1 | 0 | |||
| June 11 | 4:56 PM CDT | EF3 | Woodford, IL | 11.2 | 930 | |||
| June 11 | 5:17 PM CDT | EF0 | Fulton, IL | 2.4 | 30 | |||
| June 11 | 5:31 PM CDT | Unrated | Fulton, IL | 0.2 | 20 | |||
| June 11 | 5:31 PM CDT | EF1 | LaSalle, IL | 4.4 | 500 | |||
| June 11 | 5:32 PM CDT | EF3 | Livingston, IL | 11.9 | 600 | 7 | ||
| June 11 | 5:44 PM CDT | EF1 | Livingston, IL | 22.8 | 900 | |||
| June 11 | 5:55 PM CDT | Unrated | Livingston, IL | 0.8 | 250 | |||
| June 11 | 5:58 PM CDT | Unrated | LaSalle, IL | 0.3 | 100 | |||
| June 11 | 6:08 PM CDT | EF1 | Tazewell, IL | 12.9 | 300 | |||
| June 11 | 6:12 PM CDT | EF1 | Kenosha, WI | 0.5 | 75 | |||
| June 11 | 6:12 PM CDT | Unrated | Bureau, IL | 1.4 | 0 | |||
| June 11 | 7:01 PM CDT | Unrated | Lee, IL | 6.0 | 50 | |||
| June 11 | 7:06 PM CDT | EF0 | McLean, IL | 11.0 | 100 | |||
| June 11 | 7:08 PM CDT | Unrated | Kankakee, IL | 0.6 | 50 | |||
| June 11 | 7:11 PM CDT | EF0 | Lake, IN | 6.0 | 150 | |||
| June 11 | 7:20 PM CDT | EF1 | Champaign, IL | 9.1 | 0 | |||
| June 11 | 7:23 PM CDT | EF1 | Ford, IL | 6.9 | 100 | |||
| June 11 | 7:25 PM CDT | EF2 | Lake, IN | 6.5 | 700 | 1 | ||
| June 11 | 7:26 PM CDT | EF1 | Champaign, IL | 3.0 | 150 | |||
| June 11 | 7:32 PM CDT | EF0 | Lake, IN | 4.1 | 150 | |||
| June 11 | 7:36 PM CDT | EF0 | Lake, IN | 12.7 | 200 | |||
| June 11 | 7:39 PM CDT | EF1 | Vermilion, IL | 13.6 | 100 | |||
| June 11 | 7:44 PM CDT | EF1 | Vermilion, IL | 8.1 | 100 | |||
| June 11 | 7:45 PM CDT | EF0 | Iroquois, IL | 2.1 | 250 | |||
| June 11 | 7:48 PM CDT | EF1 | Iroquois, IL | 1.2 | 50 | |||
| June 11 | 7:48 PM CDT | EF3 | Lake, IN | 22.5 | 450 | |||
| June 11 | 7:52 PM CDT | EF1 | DuPage, IL | 3.0 | 400 | |||
| June 11 | 7:58 PM CDT | EF0 | Newton, IN | 12.6 | 200 | |||
| June 11 | 8:58 PM EDT | EF1 | Benton, IN | 12.3 | 250 | |||
| June 11 | 7:58 PM CDT | EF0 | Newton, IN | 15.6 | 200 | |||
| June 11 | 8:59 PM EDT | EF0 | Warren, IN | 10.5 | 75 | |||
| June 11 | 8:04 PM CDT | EF0 | DuPage, IL | 1.3 | 150 | |||
| June 11 | 8:15 PM CDT | EF2 | Cook, IL | 8.3 | 350 | 6 | ||
| June 11 | 8:23 PM CDT | Unrated | Porter, IN | 0.2 | 10 | |||
| June 11 | 9:29 PM EDT | EF0 | Barry, MI | 4.6 | 50 | |||
| June 11 | 9:31 PM EDT | EF0 | Kent, MI | 4.2 | 70 | |||
| June 11 | 9:31 PM EDT | EF0 | Carroll, IN | 3.4 | 75 | |||
| June 11 | 9:43 PM EDT | EF0 | Carroll, IN | 0.3 | 25 | |||
| June 11 | 9:46 PM EDT | EF1 | Cass, IN | 0.8 | 250 | |||
| June 11 | 9:58 PM EDT | EF1 | Cass, IN | 1.5 | 100 | |||
| June 11 | 10:11 PM EDT | EF1 | Marshall, IN | 0.7 | 125 | |||
| June 11 | 10:11 PM EDT | EF0 | Marshall, IN | 2.9 | 125 | |||
| June 11 | 10:22 PM EDT | EF1 | Wabash, IN | 4.7 | 0 | 2 | ||
| June 11 | 10:22 PM EDT | EF1 | Marshall, IN | 3.4 | 300 | |||
| June 11 | 10:33 PM EDT | EF1 | Huntington, IN | 5.8 | 75 | |||
| June 11 | 10:39 PM EDT | EF1 | Huntington, IN | 7.9 | 50 | |||
| June 11 | 10:42 PM EDT | EF2 | Elkhart, IN | 6.1 | 100 | 1 | ||
| June 11 | 10:44 PM EDT | EF1 | Huntington, IN | 0.7 | 25 |
What this means
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.
Sources
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.