EF3 tornado, Jaynesville to Martinville, Mississippi, March 26, 2009

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 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 mphthis tornado

   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

EF3

Date

March 26, 2009

Touchdown

1:36 AM CDT (06:36 UTC)

Lifted

1:57 AM CDT (06:57 UTC)

On the ground

21 minutes

Path length

17.4 miles (28.0 km)

Path width

500 yards (457 m)

Deaths

0

Injuries

25

Property damage

$5.0 million

Counties

Simpson and Smith counties

Touchdown point

31.788, -89.858

Lift-off point

31.954, -89.636

Record number

0903260036-01

A round of severe thunderstorms, containing tornadoes and damaging straight line winds, occurred Wednesday night, March 25, into early Thursday morning, March 26. These storms developed as a strong upper level disturbance encountered an unstable environment over the lower Mississippi Valley. A squall line of showers and thunderstorms pushed rapidly eastward across the area. One supercell storm formed ahead of the main line and produced a strong tornado which hit the town of Magee.||Eight tornadoes were confirmed from this event. Of the 8 tornadoes, 1 was rated EF3, 1 was rated EF2, 4 were rated EF1, and 2 were rated EF0. Numerous other locations experienced damaging straight line winds in excess of 60-70 mph. The worst damage occurred from a tornado which laid a 17.5 mile long track across Simpson and Smith counties. This storm was rated as EF3 with estimated 150 mph maximum winds near Magee. A second strong tornado, rated EF2 with 125 mph winds, effected Jones County near Soso.

The tornado first touched down just north of Mount Zion Road in Southwest Simpson County and continued northeast through the northwest side of Magee and then across the Smith County line before lifting near South County Road 503. Along the path, 60 homes were damaged or destroyed. A large, well-built church was destroyed. A warehouse was significantly damaged and a radio tower was snapped. Hundreds of hardwood and softwood trees were snapped and uprooted. The highest winds occurred at the church and nearby houses and trees just southwest of Magee along and just off Highway 28. Maximum winds were around 150 mph.||The EF3 rating was in Simpson County while the highest rated damage in Smith County was EF1. Total path length across both counties was near 18 miles.

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

22 minutes of warning. NWS JAN issued a tornado warning for this county at 06:14 UTC, 22 minutes before the tornado touched down, in force until 07:00 UTC.

The county was under a tornado watch, issued at 01:54 UTC and running to 07:38 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 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 05:33 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 Jackson/Brandon,MS radar (KDGX), 51 km away, was scanning. The volume nearest the touchdown began at 06:36 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 2009 tornado in MississippiEvery tornado in Mississippi since 1950Warnings in force in Mississippi 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.