Tornadoes · United States · Alabama · 2005

F0 tornado, Autaugaville to Vida, Alabama, July 6, 2005

From Autaugaville to Vida, this F0 tornado ran 0.2 miles across Autauga County on July 6, 2005, touching down at 1:36 PM CDT and reaching 25 yards wide. It killed nobody, and did $3,000 of property damage.

The rating scale

Tracks are drawn in the color of the rating. The Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. F040 to 72 mphthis tornado

    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 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. 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.

The record

Rating
F0
Date
July 6, 2005
Touchdown
1:36 PM CDT (18:36 UTC)
Path length
0.2 miles (0.3 km)
Path width
25 yards (23 m)
Deaths
0
Injuries
0
Property damage
$3,000
County
Autauga County
Touchdown point
32.620, -86.680
Lift-off point
32.620, -86.700
Record number
301

What the Weather Service recorded

National Weather Service meteorologists surveyed the damage between Independence and Autaugaville and determined the damage was the result of a tornado. The tornado touched down at approximately 127 PM CDT along County Road 13, 5 miles north of Autaugaville. Several trees were snapped off or blown down along the short path. One out-building sustained damage. The tornado damage path was 1/4 of a mile long and 30 yards wide at its widest point. This tornado was spawned during Tropical Storm Cindy.

National Weather Service meteorologists surveyed the damage near Vida and determined the damage was the result of a weak tornado. The tornado briefly touched down just northwest of Vida at approximately 136 PM CDT, west of County Road 19. The tornado knocked down or snapped off a few trees along its short path and did not affect any structures. The tornado damage path was only 0.2 miles long and 25 yards wide at its widest point. The tornado was spawned during tropical Storm Cindy.Begin: 32 36.95/86 40.72 End: 32 37.17/86 40.78

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

The warnings

20 minutes of warning. NWS BMX issued a tornado warning for this county at 18:16 UTC, 20 minutes before the tornado touched down, in force until 18:45 UTC.

Issued (UTC)ExpiredProductOffice
18:16 UTC18:45 UTCTornado WarningBMX
18:51 UTC19:15 UTCTornado WarningBMX
19:20 UTC19:45 UTCTornado WarningBMX
19:44 UTC20:05 UTCTornado WarningBMX
20:04 UTC20:30 UTCTornado WarningBMX
20:22 UTC20:50 UTCTornado WarningBMX
22:18 UTC22:45 UTCTornado WarningBMX

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 forecast that day

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 16:23 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 air that afternoon

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.

Birmingham, AL (KBMX), 12:00Z

6.6 hours before the tornado, 63 km from the path. July 6, 2005.

Skew-T log-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2005-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 15 joules per kilogram, CIN -115, lifted condensation level 1118 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Birmingham, AL at 12:00Z on 2005-07-06The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity -44 square meters per square second, 0 to 6 km bulk shear 29 knots.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
15 J/kg
Mixed-layer CIN
-115 J/kg
Surface CAPE
285 J/kg
Mixed-layer LCL
1118 m above ground
0-6 km bulk shear
29 kt
0-1 km bulk shear
14 kt
0-1 km storm-relative helicity
-44 m²/s²
0-3 km storm-relative helicity
-3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2
0-3 km lapse rate
4.9 K/km

Open this sounding in Storm Lab

Birmingham, AL (KBMX), 00:00Z

5.4 hours after it, 63 km from the path. July 7, 2005.

Skew-T log-pSkew-T log-p diagram, Birmingham, AL at 00:00Z on 2005-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1 joules per kilogram, CIN 0, lifted condensation level 502 meters above ground. Wind barbs in knots down the right edge.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Birmingham, AL at 00:00Z on 2005-07-07The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 684 square meters per square second, 0 to 6 km bulk shear 37 knots.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
1 J/kg
Mixed-layer CIN
0 J/kg
Surface CAPE
4 J/kg
Mixed-layer LCL
502 m above ground
0-6 km bulk shear
37 kt
0-1 km bulk shear
40 kt
0-1 km storm-relative helicity
684 m²/s²
0-3 km storm-relative helicity
980 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.0 K/km

Open this sounding in Storm Lab

The radar

The Birmingham radar (KBMX), 62 km away, was scanning. The volume nearest the touchdown began at 18:34 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.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
18:30 UTCTSTM WND DMG3 Se BillingsleyAutauga, ALTREES DOWN ON COUNTY RD 19 NEAR VIDA. POSSIBLE TORNADO
18:30 UTCTORNADO5 N AutaugavilleAutauga, ALNWS STORM SURVEY CONFIRMED AN F1 TORNADO 5 MILES NORTH OF AUTAUGAVILLE ON COUNTY ROAD 13. THE TORNADO DAMAGE PATH WAS 1/4 OF A MILE LONG AND 30 YARDS WIDE AT ITSA WIDEST POINT. SEVERAL TREES WERE BLOWN DOWN OR SNAPPED OF
18:30 UTCTORNADO5 N AutaugavilleAutauga, ALNWS STORM SURVEY CONFIRMED AN F1 TORNADO 5 MILES NORTH OF AUTAUGAVILLE ON COUNTY ROAD 13. THE TORNADO DAMAGE PATH WAS 1/4 OF A MILE LONG AND 30 YARDS WIDE AT ITS WIDEST POINT. SEVERAL TREES WERE BLOWN DOWN OR SNAPPED OFF
18:30 UTCTORNADO5 N AutaugavilleAutauga, ALNWS STORM SURVEY CONFIRMED THAT AN F1 TORNADO TOUCHDOWN 5 MILES NORTH OF AUTAUGAVILLE ON COUNTY ROAD 13. PATH LENGTH WAS ONE QUARTER OF A MILE, WITH WIDTH BEING 20 TO 30 YARDS.
19:25 UTCTSTM WND DMGWetumpkaElmore, ALPOWER LINES DOWN IN TWO LOCATIONS NEAR HOGAN RD. POSSIBLE TORNADO
19:30 UTCTSTM WND DMGWetumpkaElmore, ALPOWER LINES DOWN IN TWO LOCATIONS NEAR HOGAN RD. POSSIBLE TORNADO
19:50 UTCTSTM WND DMG7 Sw PrattvilleAutauga, ALA FEW SNAPPED TREES WERE OBSERVED, AND A COUPLE OF TREES WERE DOWNED ON COUNTY ROAD 41 AND ON STATE HIGHWAY 14 BETWEEN COUNTY ROAD 41 AND COUNTY ROAD 47.
20:10 UTCTORNADO2 W PrattvilleAutauga, ALPD REPORTED A TORNADO ON THE GROUND NEAR AUTAUGA HILLS.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2005 tornado in AlabamaEvery tornado in Alabama since 1950Warnings in force in Alabama nowThe forecast where you are

The other tornadoes of July 6, 2005

28 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
July 64:00 AM CDTF0Mobile, AL0.530$50,000
July 64:53 AM CDTF0Mobile, AL0.530$20,000
July 66:20 AM CDTF0Washington, AL0.530$10,000
July 66:25 AM CDTF0Clarke, AL0.530$10,000
July 66:50 AM CDTF0Escambia, FL1.030$20,000
July 67:11 AM CDTF0Escambia, FL0.530$10,000
July 67:20 AM CDTF0Escambia, AL0.530$10,000
July 610:45 AM CDTF0Covington, AL0.530$10,000
July 610:55 AM CDTF0Okaloosa, FL1.030$10,000
July 610:57 AM CDTF0Covington, AL1.030$10,000
July 61:27 PM CDTF1Autauga, AL0.330$10,000
July 61:42 PM CDTF0Montgomery, AL7.630$20,000
July 61:55 PM CDTF0Macon, AL5.6150$30,000
July 62:17 PM CDTF0Elmore, AL1.375$40,000
July 62:34 PM CDTF1Macon, AL0.1251$50,000
July 62:56 PM CDTF0Autauga, AL0.225$2,000
July 63:34 PM CDTF0Tallapoosa, AL0.110
July 63:34 PM CDTF0Chambers, AL0.110
July 63:40 PM CDTF0Lee, AL1.2200$30,000
July 66:30 PM EDTF0Meriwether, GA0.3100$30,000
July 65:45 PM ESTF0Kosciusko, IN0.110
July 69:00 PM EDTF0Coweta, GA0.150$1,000
July 69:10 PM EDTF0Fayette, GA1.0440$1.9 million
July 69:45 PM EDTF2Henry, GA9.0880$70 million
July 68:52 PM CDTF0Hartley, TX0.125
July 69:55 PM EDTF0Henry, GA0.5200$150,000
July 610:00 PM EDTF1Henry, GA7.0300$30,000
July 610:04 PM EDTF0Clayton, GA1.0100$1.5 million

What this means

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.

Sources

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.