EF0 tornado, Elmwood to Clear Lake, Oklahoma, June 13, 2010

1. EF065 to 85 mphthis tornado

   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. 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

EF0

Date

June 13, 2010

Touchdown

4:41 PM CDT (21:41 UTC)

Lifted

4:46 PM CDT (21:46 UTC)

On the ground

5 minutes

Path length

2.8 miles (4.5 km)

Path width

25 yards (23 m)

Deaths

0

Injuries

0

County

Beaver County

Touchdown point

36.659, -100.237

Lift-off point

36.669, -100.188

Record number

1006131541-01

Severe thunderstorms across the eastern Oklahoma Panhandle during the mid and late afternoon hours produced large hail...strong winds and a few tornadoes. No damage or injuries were reported.

The broadcast media and VORTEX2 reported a multivortex tornado which touched down at approximately 1517 CST about eleven miles east of Elmwood Oklahoma. The tornado traveled about three miles before lifting about three to four miles south of Clear Lake Oklahoma. The tornado was rain wrapped and remained over open country. No damage or injuries were reported. The tornado path length and path width were estimated.

Two separate storm chasers reported that a tornado touched down about 1522 CST approximately ten miles west of Slapout Oklahoma. The tornado was rain wrapped and traveled about two to three miles before lifting at around 1527 CST roughly four miles south southeast of Clear Lake Oklahoma. The tornado remained over open country and was also reported by local law enforcement officials. The tornado path length and path width were estimated. No damage or injuries were reported.

The Oklahoma Highway Patrol reported that a tornado touched down at approximately 1541 CST about seven miles west northwest of Slapout Oklahoma. The tornado remained on the ground for about five minutes and lifted about five miles east of Clear Lake Oklahoma around 1546 CST. The tornado remained over open country and no damage or injuries were reported. The tornado path length and path width were estimated.

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

45 minutes of warning. NWS AMA issued a tornado warning for this county at 20:56 UTC, 45 minutes before the tornado touched down, in force until 21:45 UTC.

The county was under a tornado watch, issued at 19:05 UTC and running to 03:00 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 Slight Risk, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 20:01 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.

Perryton/Ochiltree County Apt (PYX), 55 km from the path, in the two hours either side.

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

The Dodge City radar (KDDC), 124 km away, was scanning. The volume nearest the touchdown began at 21:42 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 2010 tornado in OklahomaEvery tornado in Oklahoma since 1950Warnings in force in Oklahoma nowThe forecast where you are

5 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.