Tornadoes · United States · Florida · 2015

EF1 tornado, Bowden to Skinners, Florida, April 25, 2015

From Bowden to Skinners, this EF1 tornado ran 3.4 miles across Duval County on April 25, 2015, touching down at 5:52 PM EDT and reaching 350 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
April 25, 2015
Touchdown
5:52 PM EDT (21:52 UTC)
Lifted
5:58 PM EDT (21:58 UTC)
On the ground
6 minutes
Path length
3.4 miles (5.5 km)
Path width
350 yards (320 m)
Deaths
0
Injuries
0
County
Duval County
Touchdown point
30.291, -81.656
Lift-off point
30.269, -81.606
Record number
1504251552-01

The damage survey

53 damage points were recorded along this path by NWS JAX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 104 mph.

  • large Cypress snapped along St Johns River. northern bound of damage.
  • damage in area clearly shows a circulation and trees are snapped nearby.
  • snapped 60 up trunk top landed on roof.
  • A uprooted tree took down part of the house looks like a storage shed.

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

Scattered pre-frontal severe thunderstorms impacted NE Florida during the afternoon and evening hours. Hail, wind damage and a lone tornado in Duval county occurred.

The tornado moved ashore and pushed just south of Hendricks Elementary snapping trees and power lines. Several structures were impacted by falling trees and limbs. Initial damage was tightly clustered with a path of approximately 200 yards. As the tornado crossed Phillips Highway several businesses sustained roof damage. Trailers in the Pine Oaks mobile home park were damaged as well. The tornado began to track more southeast as it passed I-95 and widened to 350 yards as it neared Englewood High School. At about 5:58 pm, the tornado began to weaken and dissipate. A wide swath of straight line winds continued to cause damage farther to the south and east of the path until shortly after 6 pm. The path width varied from 200-350 yards along a 3.45 mile path. The tornado lasted 5-6 minutes with the maximum wind speeds reached 104 mph.

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. One was issued for the county at another hour that day.

Issued (UTC)ExpiredProductOffice
17:12 UTC20:00 UTCTornado WatchJAX
18:28 UTC19:15 UTCSevere Thunderstorm WarningJAX
19:06 UTC19:14 UTCTornado WarningJAX
21:29 UTC22:00 UTCSevere Thunderstorm WarningJAX
22:00 UTC22:30 UTCSevere Thunderstorm WarningJAX

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 20:02 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.

Jacksonville, FL (KJAX), 12:00Z

9.9 hours before the tornado, 25 km from the path. April 25, 2015.

Skew-T log-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2015-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 0 joules per kilogram, CIN -78508, lifted condensation level 1018 meters above ground. Wind barbs in knots down the right edge.LCL10008507005003002001001 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, Jacksonville, FL at 12:00Z on 2015-04-25The 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 226 square meters per square second, 0 to 6 km bulk shear 56 knots.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
-78508 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
1018 m above ground
0-6 km bulk shear
56 kt
0-1 km bulk shear
20 kt
0-1 km storm-relative helicity
226 m²/s²
0-3 km storm-relative helicity
316 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
3.8 K/km

Open this sounding in Storm Lab

Jacksonville, FL (KJAX), 00:00Z

2.1 hours after it, 25 km from the path. April 26, 2015.

Skew-T log-pSkew-T log-p diagram, Jacksonville, FL at 00:00Z on 2015-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1050 joules per kilogram, CIN -105, lifted condensation level 914 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, Jacksonville, FL at 00:00Z on 2015-04-26The 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 332 square meters per square second, 0 to 6 km bulk shear 68 knots.1939587897Sfc1 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
1050 J/kg
Mixed-layer CIN
-105 J/kg
Surface CAPE
217 J/kg
Mixed-layer LCL
914 m above ground
0-6 km bulk shear
68 kt
0-1 km bulk shear
33 kt
0-1 km storm-relative helicity
332 m²/s²
0-3 km storm-relative helicity
324 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1
0-3 km lapse rate
4.2 K/km

Open this sounding in Storm Lab

The surface observations

Jacksonville Nas (NIP), 7 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
19:53 UTC7671200° 6 kt1009.1
20:53 UTC7771180° 5 kt1008.1
21:37 UTC80710° 0 kt1008.5TS
21:53 UTC8071300° 20 kt401010.2TSRA
21:56 UTC7769330° 29 kt401010.5TSRA SQ
22:00 UTC7266330° 30 kt431009.1-TSRA SQ
22:12 UTC7267360° 12 kt1009.1TSRA
22:24 UTC736620° 7 kt1008.8-RA
22:53 UTC7467150° 4 kt1007.5

From the Iowa Environmental Mesonet's archive of airport observations.

The radar

The Jacksonville radar (KJAX), 24 km away, was scanning. The volume nearest the touchdown began at 21:50 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
21:20 UTCHAIL 0.755 Se TaylorBaker, FLPENNY SIZE HAIL REPORTED ALONG HWY 127 NORTH OF HWY 125 IN BAKER COUNTY.
21:24 UTCTSTM WND DMG2 Ese TaylorBaker, FLCARPORT BLOWN ON TO POWER LINES ON FRENDA RD.
21:24 UTCTSTM WND DMG3 Nnw MacclennyBaker, FLTREE DOWN ON POWER LINE AT DEER CREEK LANE AND CR23A.
21:24 UTCTSTM WND DMG3 Nw MacclennyBaker, FLTREE DOWN ON BOB BURNSED ROAD.
21:45 UTCHAIL 0.754 W NormandyDuval, FLPENNY SIZE HAIL REPORTED NEAR WHITEHOUSE.
21:46 UTCTSTM WND DMG1 Sw NormandyDuval, FLTREES DOWN AND QUARTER SIZE HAIL REPORTED ON NORMANDY BLVD.
21:52 UTCTORNADO 14 Sw ArlingtonDuval, FLAN EF-1 TORNADO WITH MAXIMUM WINDS OF 104 MPH AND A PATH WIDTH OF 300 YARDS DEVELOPED ALONG THE EASTERN SHORE OF THE ST. JOHNS RIVER AND MOVED ESE THROUGH THE SOUTHSIDE AREA FOR 3.45 MILES. NUMEROUS TREES AND POWERLINES
21:57 UTCTSTM WND DMG4 Sw ArlingtonDuval, FLMEDIA REPORTING TREES AND TRANSFORMERS DOWN NEAR SAN JOSE BLVD. AND EMERSON.
22:03 UTCTSTM WND DMG5 Sse ArlingtonDuval, FLNUMEROUS TREES DOWN. PATIO ROOF RIPPED OFF IN SOUTHSIDE JACKSONVILLE.
22:05 UTCTSTM WND GST 505 Nnw MandarinDuval, FL50 MPH WIND GUST MEASURED AT NAS JAX.
22:05 UTCTSTM WND GST 704 W Jacksonville BeachDuval, FLESTIMATED 70 MPH WIND GUST ALONG HODGES BLVD NORTH OF BUTLER BLVD. NUMEROUS LARGE TREE LIMBS DOWN.
22:06 UTCTSTM WND DMG1 Ese UnfDuval, FLPART OF GAS STATION AWNING TORN OFF. NUMEROUS LARGE TREES DOWN.

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 FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are

The other tornadoes of April 25, 2015

9 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 251:58 AM CDTEF1Madison, MS1.775$20,000
April 252:17 AM CDTEF1Leake, MS2.5300$35,000
April 252:20 AM CDTEF0Leake, MS0.950$10,000
April 252:28 AM CDTEF1Leake, MS3.4500$200,000
April 252:51 AM CDTEF1Neshoba, MS6.5500$150,000
April 253:10 AM CDTEF0Kemper, MS0.950$10,000
April 255:24 PM CDTEF0Henderson, KY0.8275$20,000
April 258:29 PM CDTEF1Adair, KY3.8150$150,000
April 259:12 PM CDTEF2Edmonson, KY0.2220

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.