EF0 tornado, Jasper to Sipsey, Alabama, May 6, 2009

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

May 6, 2009

Touchdown

9:24 AM CDT (14:24 UTC)

Lifted

9:25 AM CDT (14:25 UTC)

On the ground

1 minutes

Path length

0.2 miles (0.4 km)

Path width

75 yards (69 m)

Deaths

0

Injuries

0

Property damage

$25,000

County

Walker County

Touchdown point

33.907, -87.103

Lift-off point

33.908, -87.099

Record number

0905060824-01

An upper level disturbance and a nearby stationary front combined to produce numerous severe thunderstorms across Central Alabama, that included damaging winds, large hail, and several tornadoes.

The tornado touched down near the eastern city limits of Jasper, tracked eastward across Highway 78, and lifted near Golf Course Road. Five structures were damaged. A bank drive through structure was detached from the main building and rotated 90 degrees. Two car dealerships sustained damage. Forty cars were totaled, mostly due to broken windows resulting in water damage. Three air handlers atop the dealerships were rolled. Numerous trees were uprooted. A billboard was also impaled by a fiberglass missile.

The tornado touched down on the west side of Cordova along South Street. It then moved east-northeastward through the city of Cordova, and lifted shortly after it crossed near the intersection of Disney Street and Mass Avenue, near Cane Creek. Numerous trees were snapped off or were uprooted along the path. At least 15 homes were damaged by the fallen trees. One of the trees fell on a train and damaged some of the cars but the train did not derail.

A tornado briefly touched down along Highway 69 and crossed the road before lifting. A carport was destroyed with debris scattered across the road. Several trees were uprooted and snapped and a trampoline was carried 200 yards downwind. A utility pole was also snapped but was likely impacted by debris.

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

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down. One was issued for the county at another hour that day.

The county was under a severe thunderstorm watch, issued at 09:05 UTC and running to 14:30 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 12:47 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 Birmingham radar (KBMX), 87 km away, was scanning. The volume nearest the touchdown began at 14:24 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 AlabamaEvery tornado in Alabama since 1950Warnings in force in Alabama nowThe forecast where you are

21 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.