F2 tornado, Hartman to Lamar, Arkansas, March 5, 1999

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

March 5, 1999

Touchdown

5:30 PM CST (23:30 UTC)

Path length

7.0 miles (11.3 km)

Path width

200 yards (183 m)

Deaths

0

Injuries

0

County

Johnson County

Touchdown point

35.450, -93.600

Lift-off point

35.450, -93.480

Record number

211

A strong tornado was spawned in southern Johnson County. Toward the town of Hartman, the tornado heavily damaged or destroyed a couple of barns. Farther northeast toward Clarksville, every piece of tin was removed from a chicken house. Chickens were thrown from the house and from nearby houses. Up to 10,000 chickens were lost in the storm. Numerous trees were also downed. The tornado tracked about 7 miles before dissipating just southwest of Clarksville

A weak tornado was spawned in southern Johnson County, or south of a dissipating tornado that affected areas from near Hartman to around Clarksville. The former tornado touched down near Interstate 40 southeast of Clarksville and caused some roof damage to a chicken house. As the tornado tracked northeast toward Lamar, it downed several trees. Some property damage was noted at Lamar, with roof shingles or parts of roofs removed. A two by four was thrown into a home and became lodged in the siding. The tornado was on the ground for about 7 miles before dissipating.

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

19 minutes of warning. NWS LZK issued a tornado warning for this county at 23:11 UTC, 19 minutes before the tornado touched down, in force until 00:15 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. The outlook in force was issued at 19:46 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.

The live radar over the trackEvery 1999 tornado in ArkansasEvery tornado in Arkansas since 1950Warnings in force in Arkansas nowThe forecast where you are

11 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.