EF1 tornado, Fairbanks to Bell City, Kentucky, April 4, 2008

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 4, 2008

Touchdown

1:20 AM CDT (06:20 UTC)

Lifted

1:24 AM CDT (06:24 UTC)

On the ground

4 minutes

Path length

3.6 miles (5.9 km)

Path width

170 yards (155 m)

Deaths

0

Injuries

0

Property damage

$50,000

County

Graves County

Touchdown point

36.520, -88.559

Lift-off point

36.525, -88.494

Record number

0804040020-01

A warm front moved slowly north across western Kentucky during the afternoon. Large clusters of thunderstorms produced very heavy rain. A cold front moved southeast into the Lower Ohio Valley during the night, preceded by more thunderstorms. These storms produced a report of wind damage and a tornado. Rainfall for the 24-hour period ranged from 2 to 4 inches across most of western Kentucky, with isolated amounts of 4 to 7 inches. The isolated higher amounts were mostly from Madisonville to Marion.

Between 100 and 200 trees were uprooted or snapped. Most of the downed trees were around Fairbanks. At Fairbanks, an old grocery store and mobile home were both deroofed. Near Bell City, about 30 percent of the roof on a large farm equipment building was blown off. Some siding was removed from another. The damage path was broken. The peak wind was estimated at 90 mph.

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.

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 General Thunderstorms Risk. The outlook in force was issued at 05:50 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.

Murray (CEY), 21 km from the path, in the two hours either side.

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

The Paducah radar (KPAH), 65 km away, was scanning. The volume nearest the touchdown began at 06:18 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 2008 tornado in KentuckyEvery tornado in Kentucky since 1950Warnings in force in Kentucky nowThe forecast where you are

14 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.