EF2 tornado, Elmwood to Beaver, Oklahoma, March 28, 2007

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 mph

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

3. EF2111 to 135 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. 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

EF2

Date

March 28, 2007

Touchdown

7:28 PM CDT (00:28 UTC)

Lifted

7:54 PM CDT (00:54 UTC)

On the ground

26 minutes

Path length

16.0 miles (25.7 km)

Path width

150 yards (137 m)

Deaths

2

Injuries

0

Property damage

$102,000

County

Beaver County

Touchdown point

36.518, -100.393

Lift-off point

36.620, -100.394

Record number

0703281828-02

Severe thunderstorms during the early evening hours produced deadly tornadoes...damaging winds and hail across the central and eastern Oklahoma panhandle. Heavy rains caused flash flooding in the eastern Oklahoma panhandle during the late night and early morning hours. A couple was killed in Beaver County when a tornado struck their home.

The tornado originated in northern Lipscomb County five miles east of Booker at 1816 CST. The tornado moved northward and entered Beaver County at 1828 CST. Damage occurred on a farmstead about one mile into Beaver County severely damaging several outbuildings and a grain bin. Little or no damage occurred to the home. The tornado continued north...briefly became a large multi vortex tornado...and then consolidated into one large funnel...snapping power poles and large trees. The tornado struck and destroyed a single family home at 1850 CST where two fatalities occurred. It appeared that the couple killed in the tornado did seek refuge in their small bathroom...which was destroyed. In addition to the small home...a storage barn was destroyed and two vehicles were moved as much as twenty yards. A horse trailer was destoyed as it bounced and rolled for approximately fifty yards. The tornado continued moving north for approximately another six or seven miles...damaging only power poles...fences...and trees before it lifted.

The tornado began just south of the Bar-B Ranch and moved north damaging much of the ranch property...mainly along the western edge. A large horse trailer and several other utility trailers were destroyed as they bounced and rolled and/or became airborne for significant distances. The horse trailer was displaced more than one hundred and fifty yards from its original location. Several power poles and trees were snapped at the base within the path of the tornado. A large grain silo was toppled with parts of the roof of the silo carried over one hundred yards. No injuries were reported.

The deaths

2 direct deaths are recorded for this tornado, each with what Storm Data knows of it.

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

7 minutes of warning. NWS AMA issued a tornado warning for this county at 00:21 UTC, 7 minutes before the tornado touched down, in force until 01:00 UTC.

The county was under a tornado watch, issued at 20:16 UTC and running to 04:29 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 Moderate Risk, with a 0.15 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 21:01 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.

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.

Perryton/Ochiltree County Apt (PYX), 36 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), 138 km away, was scanning. The volume nearest the touchdown began at 00:29 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 2007 tornado in OklahomaEvery tornado in Oklahoma since 1950Warnings in force in Oklahoma nowThe forecast where you are

65 more were confirmed in the United States that day.

All 66 of them

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.