F1 tornado, Marquette to Hordville, Nebraska, October 9, 2001

1. F040 to 72 mph

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

2. F173 to 112 mphthis tornado

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

3. F2113 to 157 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. F3158 to 206 mph

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

5. F4207 to 260 mph

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

6. F5261 to 318 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

F1

Date

October 9, 2001

Touchdown

5:12 PM CDT (22:12 UTC)

Path length

4.0 miles (6.4 km)

Path width

200 yards (183 m)

Deaths

0

Injuries

0

Property damage

$50,000

Counties

Hamilton and Merrick counties

Touchdown point

40.950, -98.070

Lift-off point

41.020, -98.130

Record number

1173

A powerful upper level low pressure system plowing into an unstable airmass triggered widespread severe weather across south-central Nebraska during the late afternoon and evening hours. As many as nine tornadoes were confirmed and many reports of hail were received.The tornado damage was confined to an area located north and east of Grand Island, which included Merrick, Nance, Polk, Greeley, and Hamilton counties. The tornadoes got going west of Marquette. One twister set down in Hamilton county and crossed the Platte River southeast of Chapman. Damage to outbuildings was of most significance. Other tornadoes were reported in the Marquette area, with one tornado on the ground for 12 miles from south of Marquette to southeast of Hordville. This tornado was rated an F1 and produced minor structural damage to buildings and grain bins at several farms. Power lines were lost and several trees were blown over. Numerous center pivot irrigation systems were damaged.Just before 6 pm CDT, the most damaging tornado of the day developed near the Polk and Hamilton county line, and proceeded northeast across western Polk county, leaving a path of destruction in its wake. Storm chaser reports indicated this tornado frequently became multi-vortex in nature and produced a wide swath of damage. Three miles north of Polk, a home was completely ripped from its foundation and blown into some nearby trees. The tornado was rated an F3 at this point. Along its 18 mile path, the tornado damaged over 20 center pivots, and nearly every farmstead in the path of the tornado sustained damage to the home, outbuildings, machinery or grain bins. This tornado lifted southwest of Silver Creek.Just prior to the F3 tornado in Polk county, an F2 tornado was ripping up a farmstead in northern Merrick county. This tornado was responsible for tearing the roof from a home, destroying two large metal outbuildings and damage to a half-dozen vehicles. The tornado moved north and destroyed a barn on the Nance and Merrick county line, but narrowly missed the home. Window and siding damage was noted at the home.Later that evening, one final tornado was reported. This tornado moved from south of Silver Creek to northeast of Silver Creek just before sunset. The tornado clipped the southeast side of town, resulting in damage to the post office, several cars, trees, and 13 residences in town. Fortunately, most of the damage was minor.

Tornado crossed from Hamilton County into Merrick County.

Tornado entered Merrick County from Hamilton County.

Small weak tornado crossed over Marquette but caused little damage in town.

Tornado crossed from Hamilton County into Polk County.

Tornado crossed from Hamilton County into Polk County.

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. One was issued for the county at another hour that day.

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 Moderate Risk. The outlook in force was issued at 20:09 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.

Aurora (AUH), 13 km from the path, in the two hours either side.

From the Iowa Environmental Mesonet's archive of airport observations.

The live radar over the trackEvery 2001 tornado in NebraskaEvery tornado in Nebraska since 1950Warnings in force in Nebraska nowThe forecast where you are

29 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.