EF0 tornado, Dundee, Alabama, March 2, 2012

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

March 2, 2012

Touchdown

6:17 PM CST (00:17 UTC)

Lifted

6:18 PM CST (00:18 UTC)

On the ground

1 minutes

Path length

0.1 miles (0.1 km)

Path width

25 yards (23 m)

Deaths

0

Injuries

0

County

Geneva County

Touchdown point

31.127, -85.669

Lift-off point

31.128, -85.668

Record number

1203021817-01

Several subtle upper level shortwaves affected the area during a three day period between March 1-3 as a broad long-wave upper level trough located west of the area slowly progressed eastward. Subtle surface boundaries were also in the area with a relatively warm, moist and unstable airmass in place. Instability values approached 2000 j/kg with low level shear around 30 knots and deep layer shear around 50 knots. Several tornadoes occurred in the National Weather Service Tallahassee forecast area with numerous instances of straight line wind damage, heavy rain, and localized flooding as well.

This tornado was seen by at least two people. One person was driving along Highway 52 near Hartford, and the other person who was an instructor pilot out of Ft. Rucker saw it touch down briefly in a peanut field for around 1 minute. No known damage occurred.

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

24 minutes of warning. NWS TAE issued a tornado warning for this county at 23:53 UTC, 24 minutes before the tornado touched down, in force until 00:30 UTC.

The county was under a tornado watch, issued at 22:38 UTC and running to 01:22 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 General Thunderstorms Risk. The outlook in force was issued at 19:56 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.

Cairns Aaf/Ozark (OZR), 17 km from the path, in the two hours either side.

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

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 2012 tornado in AlabamaEvery tornado in Alabama since 1950Warnings in force in Alabama nowThe forecast where you are

69 more were confirmed in the United States that day.

All 70 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.