EF1 tornado, York to Shady, Florida, April 20, 2015

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.

Rating

EF1

Date

April 20, 2015

Touchdown

3:31 PM EDT (19:31 UTC)

Lifted

3:35 PM EDT (19:35 UTC)

On the ground

4 minutes

Path length

1.9 miles (3.1 km)

Path width

350 yards (320 m)

Deaths

0

Injuries

0

County

Marion County

Touchdown point

29.061, -82.271

Lift-off point

29.069, -82.240

Record number

1504201331-01

Clusters of severe storms preceded a cold front as it crossed the local area. Hail and gusty winds were the main convective hazards, although a discrete tornado did impact the Palm Cay subdivision in southern Marion County.

An EF1 tornado touched down just east of State Road 200 at the Oak Run Country Club. Spotty EF0 damage was noted throughout the Oak Run neighborhood. The tornado continued on an east to east-northeast path into the Palm Cay subdivision, where it reached its maximum intensity of EF1. Spotter EF0 damage was noted just south of SW 103rd Street at the conclusion of the tornado path, which was about 2 miles in length. The duration of this tornado was likely less than 5 minutes. There was significant roof and tree damage within the small EF1 damage. The cost of damage was unknown.

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.

The county was under a severe thunderstorm watch, issued at 15:07 UTC and running to 20:49 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. The outlook in force was issued at 17:30 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 Tampa radar (KTBW), 152 km away, was scanning. The volume nearest the touchdown began at 19:31 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 2015 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are

2 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.