F2 tornado, Dacoma, Oklahoma, May 25, 2000

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 mph

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

3. F2113 to 157 mphthis tornado

   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

F2

Date

May 25, 2000

Touchdown

11:25 PM CDT (04:25 UTC)

Path length

8.0 miles (12.9 km)

Path width

250 yards (229 m)

Deaths

0

Injuries

0

Property damage

$50,000

County

Woods County

Touchdown point

36.570, -98.620

Lift-off point

36.670, -98.550

Record number

909

Severe thunderstorms first developed across portions of western and northern Oklahoma during the evening of the 25th, resulting in 4 confirmed tornadoes, one rated F2, and other areas of straight-line wind damage and large hail. Then during the early morning hours of the 26th, a line of severe thunderstorms formed across southwest Oklahoma and raced eastward into southeast Oklahoma, resulting in widespread damage from winds estimated between 80 and 100 mph at times.

This tornado was confirmed by a damage survey from the National Weather Service and is believed to have formed about 1/4 mile southwest of the intersection of State Highway 45 and NS246 Road in Woods County, or about 7 miles south-southwest of Dacoma, where significant tree damage was evident. Dozens of large, mature trees were stripped of most limbs, and many others were pushed over mostly in a northwestward direction, but not lofted. Then at the intersection of State Highway 45 and NS246 Road the property of the Green Valley Church sustained massive damage, most significant of which occurred to the community center, a 40 foot by 20 foot wooden structure that was completely destroyed. All exterior walls, 4 total, and the 2 interior walls were made of wood and entirely displaced from the foundation with debris located near the west edge of the foundation extending northwestward about 100 feet. On the same lot, just west and north of the community center, 3 to 4 large mature trees were either pushed over to the west and northwest or largely stripped of their limbs. The roof of the parsonage located approximately 50 feet north of the community center and just north of 2 pushed-over trees, also was heavily damaged. A 15 foot section of the gable-style roof was blown off the back side of the house and lofted eastward about 50 feet. Two large mature trees located northeast of the house were pushed over in a north-northwestward direction. Lesser damage on the property occurred to the garage, located immediately northeast of the community center, where several windows were broken and numerous roof shingles were missing. Several large bales of hay also rolled westward approximately 125 feet and were embedded in structure and tree debris. Damage to the Green Valley Community Center 6 miles SSW of Dacoma is the basis for the F2 rating. As the accompanying photo (below listing of tornado at 2225 CST) shows, this building was completely destroyed with most of the debris found to the northwest of the foundation. As the tornado tracked northeastward, a 1 mile long path of tree damage was evident on both sides of EW29 Road. Most trees had numerous limbs blown off or were damaged, while fewer trees were blown over, with the majority of trees north of the road blown over to the north and trees south of the road blown over to the east. Minor structural damage was also observed about 1/4 mile south of EW29 Road. Along NS249 Road an uninhabited house sustained significant damage to the east portion thought to be a garage, which was pushed over to the north. Numerous shingles were missing from the remainder of the house roof. A flag pole on the west side of the lot was bent to the northwest, while dozens of large mature trees north and northeast of the house were heavily damaged, with most of the them missing numerous limbs, while others were pushed over. This tree damage continued northward to EW27 Road. On the southeast side of Dacoma, an old barn was blown over, while another barn of tin construction had part of its roof blown off, with debris scattered northward a short distance. The tornado dissipated 1 mile east-northeast of Dacoma where 3-4 inch diameter tree limbs were downed.

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 Slight Risk. The outlook in force was issued at 01:08 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.

Vance Afb/Enid (END), 67 km from the path, in the two hours either side.

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

The Vance AFB radar (KVNX), 43 km away, was scanning. The volume nearest the touchdown began at 04:25 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.

The live radar over the trackEvery 2000 tornado in OklahomaEvery tornado in Oklahoma since 1950Warnings in force in Oklahoma nowThe forecast where you are

12 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.