Tornadoes · United States · Florida · 2014

EF0 tornado, Buck Siding, Florida, October 13, 2014

This EF0 tornado ran 0.0 miles across Franklin County on October 13, 2014, touching down at 8:29 PM EDT and reaching 20 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 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.

The record

Rating
EF0
Date
October 13, 2014
Touchdown
8:29 PM EDT (00:29 UTC)
Path length
0.0 miles (0.0 km)
Path width
20 yards (18 m)
Deaths
0
Injuries
0
County
Franklin County
Touchdown point
29.890, -84.910
Lift-off point
29.890, -84.910
Record number
1410131829-01

What the Weather Service recorded

An unseasonably strong upper level trough and cold brought a round of strong to severe thunderstorms and heavy rainfall to the area. There were several tornadoes confirmed across northwest Florida. All of the tornadoes were rated EF0, and most of them occurred in forested areas with no structures impacted. However, there was some minor damage to structures around Cottondale in Jackson county and Sumatra in Liberty county. All of the tornadoes exhibited tornadic debris signatures using dual-pol radar.

The KTLH dual-pol radar detected a tornadic debris signature at this location. This is in the middle of the Apalachicola National Forest with no damage to structures reported. The tornado was rated EF0 based on tree damage.

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

The warnings

30 minutes of warning. NWS TAE issued a tornado warning for this county at 23:59 UTC, 30 minutes before the tornado touched down, in force until 00:30 UTC.

Issued (UTC)ExpiredProductOffice
23:59 UTC00:30 UTCTornado WarningTAE
00:00 UTC17:27 UTCFlash Flood WatchTAE
00:27 UTC01:00 UTCTornado WarningTAE
01:53 UTC02:05 UTCTornado WarningTAE
02:26 UTC02:39 UTCTornado WarningTAE
03:45 UTC08:27 UTCTornado WatchTAE
08:03 UTC08:45 UTCSevere Thunderstorm WarningTAE
08:27 UTC16:00 UTCTornado WatchTAE
08:34 UTC09:15 UTCSevere Thunderstorm WarningTAE
12:29 UTC13:00 UTCTornado WarningTAE
12:57 UTC13:10 UTCTornado WarningTAE
14:05 UTC14:45 UTCSevere Thunderstorm WarningTAE
14:44 UTC15:30 UTCSevere Thunderstorm WarningTAE
15:21 UTC16:00 UTCSevere Thunderstorm WarningTAE

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 General Thunderstorms Risk. The outlook in force was issued at 19:45 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.

Tallahassee Rgnl, FL (KTLH), 00:00Z

0.5 hours before the tornado, 82 km from the path. October 14, 2014.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2014-10-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 87 joules per kilogram, CIN -108, lifted condensation level 1247 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, Tallahassee Rgnl, FL at 00:00Z on 2014-10-14The 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 41 square meters per square second, 0 to 6 km bulk shear 26 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
87 J/kg
Mixed-layer CIN
-108 J/kg
Surface CAPE
455 J/kg
Mixed-layer LCL
1247 m above ground
0-6 km bulk shear
26 kt
0-1 km bulk shear
23 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2
0-3 km lapse rate
5.7 K/km

Open this sounding in Storm Lab

Tallahassee Rgnl, FL (KTLH), 12:00Z

11.5 hours after it, 82 km from the path. October 14, 2014.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 12:00Z on 2014-10-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 502 joules per kilogram, CIN -17, lifted condensation level 601 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, Tallahassee Rgnl, FL at 12:00Z on 2014-10-14The 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 217 square meters per square second, 0 to 6 km bulk shear 31 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
502 J/kg
Mixed-layer CIN
-17 J/kg
Surface CAPE
998 J/kg
Mixed-layer LCL
601 m above ground
0-6 km bulk shear
31 kt
0-1 km bulk shear
29 kt
0-1 km storm-relative helicity
217 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.8
0-3 km lapse rate
5.4 K/km

Open this sounding in Storm Lab

The radar

The Tallahassee radar (KTLH), 79 km away, was scanning. The volume nearest the touchdown began at 00:29 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
00:29 UTCTORNADO 04 Nne Hays PlaceFranklin, FLTORNADIC DEBRIS SIGNATURE SEEN ON DUAL POL RADAR FROM TLH AT THIS LOCATION. THIS TORNADO TOUCHED DOWN IN THE FOREST WITH NO STRUCTURAL DAMAGE REPORTED. RATED EF0.
00:29 UTCTORNADO4 Nne Hays PlaceFranklin, FLTORNADIC DEBRIS SIGNATURE SEEN ON DUAL POL RADAR FROM TLH AT THIS LOCATION
00:50 UTCTORNADO 04 E SumatraLiberty, FLANOTHER TORNADIC DEBRIS SIGNATURE SEEN ON TLH DUAL POL DATA AT THIS LOCATION. LIKELY A SEPARATE TORNADO. RATED EF0 WITH TREE DAMAGE.
00:50 UTCTORNADO4 E SumatraLiberty, FLANOTHER TORNADIC DEBRIS SIGNATURE SEEN ON TLH DUAL POL DATA AT THIS LOCATION. LIKELY A SEPARATE TORNADO
01:59 UTCTORNADOSumatraLiberty, FLTREES DOWN AND A ROOF BLOWN OFF A SHED IN THE VICINITY OF SUMATRA. EXACT LOCATION UNKNOWN. RELAYED BY WMBB-TV METEOROLOGIST.
02:01 UTCTORNADO 02 N SumatraLiberty, FLTORNADIC DEBRIS SIGNATURE SEEN ON THE TLH DUAL POL DATA AT THIS LOCATION. EMERGENCY MANAGER FORWARDED A REPORT OF TREES DOWN AS WELL. A SHED WAS ALSO DAMAGED. RATED EF0.
02:01 UTCTORNADO2 N SumatraLiberty, FLTORNADIC DEBRIS SIGNATURE SEEN ON THE TLH DUAL POL DATA AT THIS LOCATION. EMERGENCY MANAGER FORWARDED A REPORT OF TREES DOWN AS WELL. LIKELY TORNADO.

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

This ground now

The live radar over the trackEvery 2014 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are

The other tornadoes of October 13, 2014

34 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
October 134:52 AM CDTEF1Upshur, TX5.8275$1.0 million
October 135:04 AM CDTEF1Polk, AR3.7300$50,000
October 135:19 AM CDTEF1Madison, AR3.0375$150,000
October 135:37 AM CDTEF2Little River, AR2.540014$200,000
October 135:43 AM CDTEF0Little River, AR0.150$10,000
October 136:25 AM CDTEF1Stone, MO0.175$5,000
October 136:58 AM CDTEF0Lawrence, MO0.150$5,000
October 137:20 AM CDTEF0Greene, MO0.4100
October 137:40 AM CDTEF1Clark, AR3.3250$150,000
October 139:00 AM CDTEF1De Soto Parish, LA0.9200
October 139:27 AM CDTEF1Lonoke, AR3.3150$75,000
October 1311:11 AM CDTEF1Ouachita Parish, LA0.7225$250,000
October 1311:16 AM CDTEF2Ouachita Parish, LA9.1300$3.8 million
October 1312:48 PM CDTEF0Clay, AR0.9100$70,000
October 1312:59 PM CDTEF0Randolph, IL0.350
October 131:24 PM CDTEF1Saint Clair, IL1.4100
October 131:30 PM CDTEF1Stoddard, MO9.375$53,000
October 131:43 PM CDTEF1Saint Clair, IL0.350
October 131:45 PM CDTEF1Bollinger, MO7.2100$250,000
October 132:02 PM CDTEF1Bollinger, MO2.050$20,000
October 133:54 PM CDTEF2Macon, IL10.0200$260,000
October 134:06 PM CDTEF1Jefferson, IL3.5100$10,000
October 134:07 PM CDTEF1Jefferson, IL0.750$50,000
October 134:12 PM CDTEF1Macon, IL0.250$10,000
October 134:20 PM CDTEF0Calhoun, FL2.630
October 134:29 PM CDTEF0Macon, IL2.850
October 134:43 PM CDTEF0Marion, AL6.050
October 135:25 PM CDTEF1Posey, IN3.8150$30,000
October 136:09 PM CDTEF1Montgomery, TN4.275$50,000
October 136:48 PM CDTEF0Lamar, AL1.1150
October 137:29 PM CDTEF1Colbert, AL3.52001
October 138:50 PM EDTEF0Liberty, FL0.020
October 139:59 PM EDTEF0Liberty, FL2.120$5,000
October 1310:58 PM EDTEF0Liberty, FL0.020

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.