EF3 tornado, Prince Xrd to Stonewall, Alabama, April 29, 2014

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

April 29, 2014

Touchdown

3:56 AM CDT (08:56 UTC)

Lifted

4:12 AM CDT (09:12 UTC)

On the ground

16 minutes

Path length

11.4 miles (18.4 km)

Path width

1,200 yards (1097 m)

Deaths

0

Injuries

13

Counties

Lee and Russell counties

Touchdown point

32.465, -85.234

Lift-off point

32.568, -85.080

Record number

1404290256-01

43 damage points were recorded along this path by NWS BMX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF3. The highest wind the damage implies is 140 mph.

• Entire roof removed and second story walls collapsed.
• Double wide rolled. completely destroyed.
• no tie down apparent. double ride rolled into neighboring manufactured home.
• single wide rolled. no evidence of tie downs.

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

A large scale severe weather event began Saturday, April 26 and ended Wednesday, April 30th, producing several waves of severe weather from the Central Plains eastward through the Deep South, and across a significant portion of the eastern United States. Strong and violent tornadoes, very large hail, flash flooding, and damaging straight line winds accompanied this dynamic storm system. The most tornadoes occurred across the Deep South as the system moved into Mississippi and Alabama on Monday, April 28th. Supercell thunderstorms developed during the afternoon over eastern Mississippi and northwest Alabama in the warm sector well ahead of a cold front. The activity slowly spread east and southeast overnight, with this wave of severe storms ending early Tuesday morning. Storms redeveloped late Tuesday afternoon and moved into Central Alabama. A large area of rainfall across the northern Gulf Coast limited the amount of instability across the area, and storms remained below severe limits. The last wave of severe weather occurred early Wednesday morning across the south as an isolated storm produced large hail, as the system finally pulled east of the area.

The tornado crossed into Lee County, approximately six-tenths of a mile west of County Line Road. It continued to the northeast and strengthened to its maximum intensity near AL-169, with winds of 140 mph. At this location, approximately 6 manufactured homes were lifted, rolled, and completely destroyed. Additionally, a split level home had its roof and the exterior walls of the top floor removed. Three wood frame homes were also lifted off their foundation and completely destroyed. Several more homes sustained roof damage. Hundreds of trees were snapped off or were uprooted, with several trees debarked. From here, the tornado traveled northeast, where it continuously uprooted trees along its path. As it crossed lee County Road 205, one home suffered extensive roof damage, while approximately 20 additional homes sustained mainly shingle damage. The tornado crossed Lee County Road 179, where a few additional homes suffered minor roof damage as well. As it continue to the northeast, it began to weaken considerably and crossed US-280. A few trees were uprooted at this location. The tornado lifted along Lee County Road 298, approximately four-tenths of a mile from Lee County Road 318.

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

4 minutes of warning. NWS BMX issued a tornado warning for this county at 08:52 UTC, 4 minutes before the tornado touched down, in force until 09:02 UTC.

The county was under a tornado watch, issued at 05:54 UTC and running to 10:00 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 06:07 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 Maxwell AFB radar (KMXX), 59 km away, was scanning. The volume nearest the touchdown began at 08:55 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 2014 tornado in AlabamaEvery tornado in Alabama since 1950Warnings in force in Alabama 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.