Tornadoes · United States · Alabama · 2015

EF1 tornado, Sheffield to Old Bethel, Alabama, July 14, 2015

From Sheffield to Old Bethel, this EF1 tornado ran 9.1 miles across Colbert County on July 14, 2015, touching down at 6:00 PM CDT and reaching 150 yards wide. It killed nobody.

The rating scale

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

  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 mphthis tornado

    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.

The record

Rating
EF1
Date
July 14, 2015
Touchdown
6:00 PM CDT (23:00 UTC)
Lifted
6:13 PM CDT (23:13 UTC)
On the ground
13 minutes
Path length
9.1 miles (14.7 km)
Path width
150 yards (137 m)
Deaths
0
Injuries
0
County
Colbert County
Touchdown point
34.769, -87.708
Lift-off point
34.657, -87.622
Record number
1507141700-01

The damage survey

65 damage points were recorded along this path by NWS HUN, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 100 mph.

  • damage caused by tree falling on house
  • fell across highway 20 and was facing north
  • trees fell on house, fell west

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

What the Weather Service recorded

A quasi-linear convective system (QLCS) dropped southward into the Tennessee Valley during the afternoon and evening hours. The airmass was very unstable, and despite low to moderate low to mid level wind shear, multiple swaths of damaging winds occurred. Within these pockets of winds, a few weak and mostly short-lived tornadoes developed. The most concentrated wind and tornado damage occurred in portions of Lauderdale, Colbert, and Lawrence Counties including the Shoals region of Florence, Sheffield, Muscle Shoals, Town Creek and Courtland. Other short-lived tornadoes occurred in Madison, Morgan and Cullman Counties. Unfortunately, one person was killed by a falling tree near West Point in Cullman County.

A tornado touched down along the south riverbank of the Tennessee River in Sheffield. The tornado initially produced substantial tree damage along Alabama Avenue along with minor roof and structural damage to several homes. The tornado then moved southeast uprooting or snapping numerous hardwood trees in the residential neighborhoods of Sheffield. Here many homes were damaged by falling trees or flying debris. Several homeowners said they witnessed seeing a funnel cloud approaching from the north. The most substantial damage was noted along Little Rock Avenue where power poles were snapped or pushed over. Many residents were without power due to the storm.||The tornado narrowed somewhat as it moved southeast toward Tuscumbia. Damage was noted to trees just east of the Helen Keller Hospital complex. Power lines were broken and transmission lines were bent over along Elm Street. A large light tower was completely destroyed at Deshler High School. The tornado continued to produce sporadic damage as it approached Highway 43 rolling over an un-anchored building and producing minor damage at a car dealership. The tornado crossed Highway 72 Alternate with mainly tree damage noted before it apparently lifted along Spring Valley Road.

A tornado touched down in the southeast corner of Colbert County in the LaGrange community. The tornado touched down along Poplar Creek Loop west of County Road 48 (County Line Road). Here, numerous trees were uprooted or had large sections of branches snapped. The tornado continued to move southeast crossing County Line Road. Damage to mainly softwood trees was noted along Wolf Springs Road as the tornado straddled the Bring Crossing into Lawrence County.

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

The warnings

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.

The county was under a severe thunderstorm watch, issued at 21:00 UTC and running to 01:26 UTC.

Issued (UTC)ExpiredProductOffice
21:00 UTC01:26 UTCSevere Thunderstorm WatchHUN

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 Enhanced Risk. The outlook in force was issued at 19:55 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.

Nashville Metro, TN (KBNA), 12:00Z

11.0 hours before the tornado, 185 km from the path. July 14, 2015.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2015-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1670 joules per kilogram, CIN -104, lifted condensation level 991 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, Nashville Metro, TN at 12:00Z on 2015-07-14The 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 111 square meters per square second, 0 to 6 km bulk shear 40 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
1670 J/kg
Mixed-layer CIN
-104 J/kg
Surface CAPE
2023 J/kg
Mixed-layer LCL
991 m above ground
0-6 km bulk shear
40 kt
0-1 km bulk shear
25 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.8
0-3 km lapse rate
5.5 K/km

Open this sounding in Storm Lab

Nashville Metro, TN (KBNA), 00:00Z

1.0 hours after it, 185 km from the path. July 15, 2015.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2015-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1470 joules per kilogram, CIN -100, lifted condensation level 1132 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, Nashville Metro, TN at 00:00Z on 2015-07-15The 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 146 square meters per square second, 0 to 6 km bulk shear 42 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
1470 J/kg
Mixed-layer CIN
-100 J/kg
Surface CAPE
1441 J/kg
Mixed-layer LCL
1132 m above ground
0-6 km bulk shear
42 kt
0-1 km bulk shear
21 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.2
0-3 km lapse rate
6.1 K/km

Open this sounding in Storm Lab

The radar

The Columbus AFB radar (KGWX), 109 km away, was scanning. The volume nearest the touchdown began at 23:00 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
23:00 UTCTORNADO 13 Sw FlorenceColbert, ALEF1 TORNADO WITH ESTIMATED PEAK WIND OF 95 MPH. PATH LENGTH OF 9.11 MILES AND PATH WIDTH UP TO 150 YARDS.
23:10 UTCTSTM WND DMGFlorenceLauderdale, ALNUMEROUS TREES AND POWER LINES DOWNED BY THUNDERSTORM WINDS.
23:14 UTCTORNADO 11 Wnw Town CreekLawrence, ALAN EF-1 TORNADO WITH 100 MPH MAXIMUM WINDS...A PATH LENGTH OF 11.4 MILES AND A PATH WIDTH OF 250 YARDS DEVELOPED ALONG COUNTY ROAD 273 ABOUT A MILE WEST OF TOWN CREEK ALABAMA. THE TORNADO DOWNED A TELEPHONE POLE AND SEVE
23:18 UTCTORNADO 02 Ne La GrangeColbert, ALEF-0 TORNADO WITH PEAK WIND SPEEDS OF 85 MPH. PATH LENGTH WAS 2.66 MILES AND PATH WIDTH OF UP TO 50 YARDS.
23:20 UTCTSTM WND DMGRussellvilleFranklin, ALA FEW TREES WERE DOWNED ACROSS THE EASTERN PORTION OF FRANKLINE COUNTY.
23:25 UTCTSTM WND DMGTown CreekLawrence, ALNUMEROUS TREES AND POWER LINES DOWNED BY THUNDERSTORM WINDS ALONG HIGHWAY 20 AND HIGHWAY 101.
23:25 UTCTSTM WND GST 651 Sw North CourtlandLawrence, ALLAWRENCE COUNTY AIRPORT /LCXA1/ COURTLAND 2WSW CRN SITE.
23:41 UTCTSTM WND DMGSheffieldColbert, ALA FEW TREES WERE DOWNED BY THUNDERSTORM WINDS.
23:50 UTCTSTM WND DMGDecaturMorgan, ALNUMEROUS TREES AND POWER LINES DOWN SCATTERED THROUGH THE CITY.
23:58 UTCTSTM WND DMG3 Nnw Lake ButtahatcheeMarion, ALTREE DOWN ON STATE HIGHWAY 129 AND LOVELESS LANE
00:05 UTCTSTM WND DMGDouble SpringsWinston, ALTREES REPORTED DOWN COUNTYWIDE

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

This ground now

The live radar over the trackEvery 2015 tornado in AlabamaEvery tornado in Alabama since 1950Warnings in force in Alabama nowThe forecast where you are

The other tornadoes of July 14, 2015

9 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
July 141:46 PM CDTEF1Pickett, TN12.4300$60,000
July 142:49 PM CDTEF1Putnam, TN2.8150$100,000
July 144:55 PM EDTEF1Monroe, TN7.8200
July 145:38 PM EDTEF1Fleming, KY0.5200$50,000
July 146:14 PM CDTEF1Lawrence, AL11.4250
July 146:18 PM CDTEF0Lawrence, AL2.750
July 146:35 PM CDTEF0Madison, AL0.975
July 146:48 PM CDTEF0Morgan, AL0.8100
July 146:59 PM CDTEF1Morgan, AL4.9300

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.