Tornadoes · United States · Ohio · 2016

EF0 tornado, Sardinia, Ohio, August 17, 2016

This EF0 tornado ran 1.0 miles across Brown County on August 17, 2016, touching down at 11:16 AM EDT and reaching 100 yards wide. It killed nobody, and did $30,000 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.

  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
August 17, 2016
Touchdown
11:16 AM EDT (15:16 UTC)
Lifted
11:19 AM EDT (15:19 UTC)
On the ground
3 minutes
Path length
1.0 miles (1.6 km)
Path width
100 yards (91 m)
Deaths
0
Injuries
0
Property damage
$30,000
County
Brown County
Touchdown point
39.007, -83.813
Lift-off point
39.011, -83.796
Record number
1608170916-01

What the Weather Service recorded

Severe thunderstorms with heavy rain developed ahead of a weak cold front.

A weak tornado touched down on the west side of Sardinia near Highway 24B (Maple Ave) and moved east-northeast through the village, ending on the northeast side of town near Highway 32 (Appalachian Highway).||The beginning of the tornado track was marked by scattered broken tree branches generally 3 to 6 inches in diameter. These branches tended to fall in a narrow corridor indicating convergence along the track. This was the primary damage observed near Maple Ave as it entered the western portion of Sardinia up to just south of the|intersection with Broad Street. A few slightly larger branches up to approximately 8 inches in diameter were broken as the tornado moved just south of Winchester Street. Wind speeds of approximately 60 to 70 mph likely caused much of this damage.||The tornado appeared to strengthen and widen as it continued to move near and just south of Sardinia-Mowrystown Road in Sardinia. Minor structural damage became more evident in this area and larger trees were broken. A gas station pump was dislodged from its base near the intersection with Winchester Street, and a section of roofing|approximately 45 feet by 10 feet was partially removed from a storage barn 100 yards to the east-northeast. Tree limbs, 4 to 7 inches in diameter, were broken across the street in the cemetery and fell south toward the center line of the track. Three large trees approximately 12-18 inches in diameter were uprooted and oriented toward the northeast on the south side of Sardinia-Mowrystown Road, near the intersection with Kelly Street. Wind speeds of 65 to 75 mph likely brought down these trees, though wet soils also contributed.||A brick chimney was also partially destroyed on a nearby house. An overall convergent debris pattern was evident in this area, especially with the tree damage.||The tornado then started to weaken just before dissipating east of Brookfield Place near Highway 32 (Appalachian Highway). A metal carport approximately 20 feet by 12 feet was lifted from the north side of Brookfield Place near the intersection with Meadow View, carried across Brookfield Place, and dropped on the south side of|the road. Leaf splatter was also observed on the west-facing side of a motor home near where the carport was dropped. An eyewitness at this location described a column of rotating debris associated with the tornado. Minor tree damage was noted at the east end of Brookfield Place, after which the tornado dissipated. Wind speeds in|this area were likely 60 to 70 mph.

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

The warnings

0 minutes of warning. NWS ILN issued a tornado warning for this county at 15:16 UTC, 0 minutes before the tornado touched down, in force until 15:45 UTC.

Issued (UTC)ExpiredProductOffice
13:12 UTC15:45 UTCFlood AdvisoryILN
14:01 UTC16:00 UTCFlood AdvisoryILN
15:06 UTC18:00 UTCFlood AdvisoryILN
15:09 UTC19:41 UTCFlash Flood WarningILN
15:16 UTC15:45 UTCTornado WarningILN
15:45 UTC16:15 UTCSevere Thunderstorm WarningILN
15:58 UTC17:30 UTCFlood AdvisoryILN
16:10 UTC16:45 UTCSevere Thunderstorm WarningILN
16:23 UTC16:40 UTCTornado WarningILN
16:45 UTC18:45 UTCFlood AdvisoryILN
17:19 UTC19:15 UTCFlood AdvisoryILN

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 12:52 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.

Cncnati-Daytn, OH (KILN), 12:00Z

3.3 hours before the tornado, 47 km from the path. August 17, 2016.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2016-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 138 joules per kilogram, CIN -26, lifted condensation level 634 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, Cncnati-Daytn, OH at 12:00Z on 2016-08-17The 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 63 square meters per square second, 0 to 6 km bulk shear 29 knots.19395878Sfc1 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
138 J/kg
Mixed-layer CIN
-26 J/kg
Surface CAPE
370 J/kg
Mixed-layer LCL
634 m above ground
0-6 km bulk shear
29 kt
0-1 km bulk shear
16 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
118 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2
0-3 km lapse rate
5.1 K/km

Open this sounding in Storm Lab

Cncnati-Daytn, OH (KILN), 00:00Z

8.7 hours after it, 47 km from the path. August 18, 2016.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 2016-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 345 joules per kilogram, CIN -6, lifted condensation level 986 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, Cncnati-Daytn, OH at 00:00Z on 2016-08-18The 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 -2 square meters per square second, 0 to 6 km bulk shear 24 knots.19395878Sfc1 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
345 J/kg
Mixed-layer CIN
-6 J/kg
Surface CAPE
1792 J/kg
Mixed-layer LCL
986 m above ground
0-6 km bulk shear
24 kt
0-1 km bulk shear
7 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
-5 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1
0-3 km lapse rate
6.1 K/km

Open this sounding in Storm Lab

The surface observations

Batavia (I69), 36 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
13:34 UTC72720° 0 kt1021.3-RA
13:54 UTC7272120° 3 kt1021.3+RA
14:14 UTC70.770.70° 0 kt1021.3+RA
14:34 UTC70.8870.880° 0 kt1021.7+RA
14:54 UTC71710° 0 kt1021+RA
15:14 UTC70.770.7350° 8 kt1021.3+RA
15:34 UTC70.1670.16360° 3 kt1021.3RA
15:54 UTC70.770.70° 0 kt1021.3-RA
16:14 UTC71.7871.780° 0 kt1021.3
16:34 UTC72.1472.140° 0 kt1021-RA
16:54 UTC71.4271.420° 0 kt1020.7RA
17:14 UTC71.7871.780° 0 kt1020.7-RA

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

The radar

The Cincinnati radar (KILN), 46 km away, was scanning. The volume nearest the touchdown began at 15:16 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
14:16 UTCFLOOD4 Sw Deer ParkHamilton, OHHIGH WATER REPORTED ACROSS THE NORWOOD LATERAL NEAR MONTGOMERY ROAD.
14:16 UTCHEAVY RAIN 1.24 Nne MelbourneHamilton, OHFELL IN 45 MINUTES.
15:15 UTCFLASH FLOODCaliforniaHamilton, OHOVER 1 FOOT OF WATER OVER SUTTON ROAD.
15:15 UTCFLASH FLOODMariemontHamilton, OH1 TO 2 FEET OF WATER ON WOOSTER PIKE.
15:16 UTCTSTM WND DMGSardiniaBrown, OHFIVE BUILDINGS WITH STRUCTURAL DAMAGE. MULTIPLE TREES AND POWER LINES DOWNED. POSSIBLE TORNADO.
15:16 UTCTORNADO 0SardiniaBrown, OHESTIMATED WIND SPEED OF 75 MPH. MINOR STRUCTURAL AND TREE DAMAGE.PATH LENGTH OF 1 MILE AND WIDTH OF 100 YARDS.
15:40 UTCFLASH FLOOD1 Sw AmeliaClermont, OHHIGH WATER ENTERING AT LEAST 1 HOME...WITH 1 MOTORISTS REQUIRING RESCUE FROM HIGH WATER. MOST OF THE FLASH FLOODING WAS REPORTED IN PIERCE TOWNSHIP.
15:45 UTCTSTM WND DMGBethelClermont, OHLARGE TREE DOWN ON A SHED
16:03 UTCFLASH FLOOD6 W Mount OrabClermont, OHESTIMATED 1 TO 2 FEET OF WATER COVERING ZACHARY DRIVE IN WILLIAMSBURG
16:05 UTCFLASH FLOOD5 W BelfastHighland, OHFAIR RIDGE ROAD IMPASSIBLE DUE TO HIGH WATER AS DEEP AS 1 FOOT.
16:05 UTCFLASH FLOODMowrystownHighland, OHAS MUCH AS 1 FOOT OF WATER ON GATH ROAD NEAR STATE ROUTE 132 JUST WEST OF MOWRYSTOWN. HIGH WATER ALSO REPORTED ON SEAMER ROAD.
16:20 UTCFLASH FLOOD5 S FayettevilleBrown, OHHIGH MOVING WATER COMPLETELY INUNDATED UPPER FIVE MILE RD.
16:27 UTCFLASH FLOODNew RichmondClermont, OHHIGH WATER RUSHING OVER GRAYS LANE NEAR NEW RICHMOND.
16:45 UTCFLASH FLOODSsw BelfastHighland, OHSR 785 JUST SOUTH OF BELFAST CULVERT WASHED OUT. ROAD CLOSED UNTIL FURTHER NOTICE.
17:10 UTCFLASH FLOODAmeliaClermont, OHWATER ENTERING AN APARTMENT COMPLEX.
17:10 UTCFLASH FLOODAmeliaClermont, OHNUMEROUS REPORTS OF HIGH WATER STILL BEING REPORTED FROM PIERCE TOWNSHIP THROUGH AMELIA AREA.
17:15 UTCFLASH FLOOD5 Se MarshallHighland, OHWATER RUSHING OVER HIZER ROAD.
17:20 UTCTSTM WND DMGRardenScioto, OHA FEW TREE LIMBS DOWN
17:50 UTCFLASH FLOODBelfastHighland, OHVERY DEEP MOVING WATER STILL BEING REPORTED ALONG PEACH ORCHARD ROAD AND STATE ROUTE 73 NEAR BELFAST.
18:00 UTCFLASH FLOOD3 S BelfastAdams, OHWATER UP TO HOUSES AND OVER BANKS OF SMALL STREAM.
18:00 UTCFLASH FLOOD4 Sw PeeblesAdams, OHHIGH WATER RUSHING OVER LAWSHE ROAD NEAR ROUTE 41.

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

This ground now

The live radar over the trackEvery 2016 tornado in OhioEvery tornado in Ohio since 1950Warnings in force in Ohio nowThe forecast where you are

The other tornadoes of August 17, 2016

1 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
August 172:41 PM EDTEF0Washington, PA0.9250$10,000

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.