Tornadoes · United States · Florida · 2020
EF0 tornado, Homosassa Comps Site to Homosassa Springs, Florida, April 20, 2020
From Homosassa Comps Site to Homosassa Springs, this EF0 tornado ran 7.3 miles across Citrus County on April 20, 2020, touching down at 9:39 AM EDT and reaching 35 yards wide. It killed nobody, and did $100,000 of property damage.
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.
EF065 to 85 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mph
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
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.
EF4166 to 200 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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
- April 20, 2020
- Touchdown
- 9:39 AM EDT (13:39 UTC)
- Lifted
- 9:48 AM EDT (13:48 UTC)
- On the ground
- 9 minutes
- Path length
- 7.3 miles (11.7 km)
- Path width
- 35 yards (32 m)
- Deaths
- 0
- Injuries
- 0
- Property damage
- $100,000
- County
- Citrus County
- Touchdown point
- 28.790, -82.690
- Lift-off point
- 28.802, -82.576
- Record number
- 2004200739-01
The damage survey
6 damage points were recorded along this path by NWS TBW, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 80 mph.
- Wooden billboard blown down with poles snaped.
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 squall line pushed through West Central Florida on April 20th producing damaging wind gusts across the area.
Video showed a waterspout moving onshore of the|coast in Homosassa, and that same area of rotation continued|along a nearly easterly path. This created a narrow damage path|starting across a mobile home park near Buzzard Point causing 7|structures with minor damage and 2 structures with major damage.|Several trees were then downed or snapped in the Homosassa|Springs Wildlife Park, and snapped power poles, a billboard|down, the sail of a gas station blown off, and one business|with major damage on US Highway 19 and Grover Cleveland|Boulevard before lifting.
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 11:05 UTC and running to 16:02 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 05:00 UTC | 00:00 UTC | Small Craft Advisory | TBW |
| 11:05 UTC | 16:02 UTC | Severe Thunderstorm Watch | TBW |
| 11:33 UTC | 13:30 UTC | Marine Warning | TBW |
| 13:25 UTC | 15:30 UTC | Marine Warning | TBW |
| 15:27 UTC | 17:30 UTC | Marine Warning | TBW |
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 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 12:49 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.
Tampa Bay, FL (KTBW), 12:00Z
1.7 hours before the tornado, 123 km from the path. April 20, 2020.
- Mixed-layer CAPE
- 1093 J/kg
- Mixed-layer CIN
- -37 J/kg
- Surface CAPE
- 3380 J/kg
- Mixed-layer LCL
- 989 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 351 m²/s²
- 0-3 km storm-relative helicity
- 431 m²/s²
- Significant tornado parameter
- 2.4
- Supercell composite
- 22.1
- 0-3 km lapse rate
- 5.4 K/km
Tampa Bay, FL (KTBW), 00:00Z
10.3 hours after it, 123 km from the path. April 21, 2020.
- Mixed-layer CAPE
- 2 J/kg
- Mixed-layer CIN
- -326 J/kg
- Surface CAPE
- 667 J/kg
- Mixed-layer LCL
- 1371 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
- 0-3 km lapse rate
- 5.5 K/km
The radar
The Tampa radar (KTBW), 123 km away, was scanning. The volume nearest the touchdown began at 13:39 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) | Report | Where | County | Remark |
|---|---|---|---|---|
| 12:42 UTC | TSTM WND GST 52 | 1 Sse Cedar Key | Gmz850, FL | BUOY STATION CKYF1 CEDAR KEY, FL. |
| 12:45 UTC | TSTM WND DMG | 2 Nne Cedar Key | Levy, FL | CEDAR KEY PD REPORTED DOWN TREE NEAR WILDLIFE REFUGE. |
| 12:48 UTC | TSTM WND GST 71 | 1 Sse Cedar Key | Gmz850, FL | BUOY STATION CKYF1 CEDAR KEY, FL. |
| 13:20 UTC | TSTM WND DMG | 5 Ese Lebanon | Levy, FL | CALLER REPORTED TREE DAMAGE ON CR336 NEAR CR 337 BLOCKING BOTH LANES NEAR RAINBOW LAKE ESTATES. |
| 13:36 UTC | TSTM WND DMG | 7 Ssw Santos | Marion, FL | FLORIDA STATE WATCH OFFICE REPLAYED A REPORT OF PINE TREES BLOCKING THE RIGHT AND CENTER SOUTHBOUND LANES OF INTERSTATE 75 NEAR MILE MARKER 340 IN SOUTHERN MARION COUNTY NEAR MARION OAKS. TIME OF DAMAGE BASED ON RADAR DA |
| 13:37 UTC | TSTM WND DMG | 8 Ssw Santos | Marion, FL | MARION COUNTY EMERGENCY MANAGEMENT REPORTS A STATIONARY CONSTRUCTION TRAILER THROWN ACROSS INTERSTATE 75 AT THE OCALA WEIGH STATION NEAR BELLEVIEW. TIME OF DAMAGE BASED ON RADAR DATA. |
| 13:37 UTC | TORNADO | 9 Ssw Santos | Marion, FL | FOX-13 NEWS IN TAMPA BROADCAST A VIDEO OF A TORNADO CROSSING INTERSTATE 75 IN THE VICINITY OF BELLEVIEW NEAR THE OCALA WEIGH STATION. TIME OF EVENT BASED ON RADAR DATA. |
| 13:40 UTC | TORNADO | 7 Ssw Santos | Marion, FL | MEMBER OF THE PUBLIC SUBMITTED THROUGH SOCIAL MEDIA A VIDEO OF A TORNADO CROSSING INTERSTATE 75 IN THE VICINITY OF BELLEVIEW NEAR MILE MARKER 341. |
| 13:41 UTC | TSTM WND GST 52 | Ocala Airport | Marion, FL | PEAK GUST OF 52 MPH RECORDED AT THE OCALA INTERNATIONAL AIRPORT. |
| 13:51 UTC | TSTM WND GST 46 | Ocala Airport | Marion, FL | PEAK GUST OF 46 MPH RECORDED AT THE OCALA INTERNATIONAL AIRPORT. |
| 14:13 UTC | TSTM WND DMG | 2 Wnw Homosassa Springs | Citrus, FL | MULTIPLE TREES DOWN AND GAS STATION COVER BLOWN OFF FROM POSSIBLE BRIEF TORNADO. TIME APPROX. |
| 14:13 UTC | TORNADO | 2 Wnw Homosassa Springs | Citrus, FL | CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 2 WNW HOMOSASSA SPRINGS. MULTIPLE TREES DOWN AND GAS STATION COVER BLOWN OFF. SEVERAL STRUCTURES WITH DAMAGE ALONG THE PATH, INCLUDING 7 WITH MINOR DAMAGE, 2 WITH MAJOR DAMAGE, |
| 14:25 UTC | TSTM WND DMG | 4 N Wildwood | Sumter, FL | TREE DOWN ON CR 110 NEAR WILDWOOD. LOCATION AND TIME ESTIMATED. |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2020 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are
The other tornadoes of April 20, 2020
3 more were confirmed in the United States that day.
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.