Tornadoes · United States · Ohio · 2020

EF1 tornado, Norton to Aultman, Ohio, April 7, 2020

From Norton to Aultman, this EF1 tornado ran 9.8 miles across Summit County on April 7, 2020, touching down at 11:52 PM EDT and reaching 100 yards wide. It killed nobody, and did $500,000 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 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 7, 2020
Touchdown
11:52 PM EDT (03:52 UTC)
Lifted
12:03 AM EDT (04:03 UTC)
On the ground
11 minutes
Path length
9.8 miles (15.8 km)
Path width
100 yards (91 m)
Deaths
0
Injuries
0
Property damage
$500,000
County
Summit County
Touchdown point
41.033, -81.602
Lift-off point
40.928, -81.477
Record number
2004072152-01

The damage survey

26 damage points were recorded along this path by NWS CLE, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 107 mph.

  • several large trees uprooted in several directions
  • damage path wide 100 yards

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 surface low moved from west-central Lower Michigan during the evening of April 7th to near Long Island by daybreak on April 8th. The accompanying cold front extended west-southwestward from the low and swept south-southeastward through northern Ohio during the early morning of the 8th. Along and ahead of the cold front, clusters of thunderstorms, including supercells, formed over southern Lake Michigan and southern Lower Michigan by the early evening of the 7th. These storms grew upscale into a squall line, which then moved generally southeastward through northern Ohio from late evening of the 7th through the first hour of the 8th. Additional more discrete thunderstorms, including supercells, developed ahead of the squall line. These storms encountered primarily moderate instability amidst strong effective bulk shear within the warm sector. In addition to numerous reports of damaging straight-line winds and severe hail, three QLCS tornadoes occurred within the squall line and affected portions of northeast Ohio.

An EF1 tornado began at a baseball diamond complex along Yonkers Road, about 0.25 miles northwest of Newton Park in Barberton. As the tornado moved southeastward through Barberton, softwood trees were uprooted between Morgan Street and West Summit Street, just west of Orchard Ave, and along Grandview Ave, just northwest of the intersection with 5th Street NE. Farther to the southeast in Barberton, the tornado uprooted several hardwood trees which then fell onto and damaged three homes along Wisteria Drive. As the tornado progressed through the Portage Lakes area, at least 200 trees were lost in the Bramblewood Estates, between Quail Ridge Circle and OH 619. Nearby, softwood and hardwood trees were either snapped or uprooted at and near Turkeyfoot Lake Golf Links. The tornado then entered Green, where hardwood trees were uprooted along Arlington Road, about 0.10 miles south of Harring Road, and along Golden Wood Way, where a tree fell onto a garage and caused extensive damage to the home. Farther to the southeast, the tornado snapped multiple softwood trees at a cemetery along Thursby Road and peeled away portions of a barn's roof along Thursby Road, just south of Greensburg Road. Soon thereafter, the tornado dissipated at the intersection of Thursby Road and Discovery Road. No fatalities or injuries occurred.

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

The warnings

7 minutes of warning. NWS CLE issued a tornado warning for this county at 03:45 UTC, 7 minutes before the tornado touched down, in force until 04:18 UTC.

The county was under a severe thunderstorm watch, issued at 01:08 UTC and running to 04:46 UTC.

Issued (UTC)ExpiredProductOffice
01:08 UTC04:46 UTCSevere Thunderstorm WatchCLE
02:57 UTC04:00 UTCSevere Thunderstorm WarningCLE
03:01 UTC03:45 UTCSevere Thunderstorm WarningCLE
03:12 UTC04:15 UTCSevere Thunderstorm WarningCLE
03:38 UTC04:34 UTCSevere Thunderstorm WarningCLE
03:45 UTC04:18 UTCTornado WarningCLE
04:45 UTC08:45 UTCFlood AdvisoryCLE

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 Enhanced Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 00:49 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.

Pittsburgh, PA (KPIT), 00:00Z

3.9 hours before the tornado, 137 km from the path. April 8, 2020.

Skew-T log-pSkew-T log-p diagram, Pittsburgh, PA at 00:00Z on 2020-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 43 joules per kilogram, CIN -141, lifted condensation level 1005 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, Pittsburgh, PA at 00:00Z on 2020-04-08The 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 346 square meters per square second, 0 to 6 km bulk shear 59 knots.1939587897117Sfc1 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
43 J/kg
Mixed-layer CIN
-141 J/kg
Surface CAPE
200 J/kg
Mixed-layer LCL
1005 m above ground
0-6 km bulk shear
59 kt
0-1 km bulk shear
32 kt
0-1 km storm-relative helicity
346 m²/s²
0-3 km storm-relative helicity
427 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

Pittsburgh, PA (KPIT), 12:00Z

8.1 hours after it, 137 km from the path. April 8, 2020.

Skew-T log-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 2020-04-08Temperature 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 -90127, lifted condensation level 877 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, Pittsburgh, PA at 12:00Z on 2020-04-08The 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 156 square meters per square second, 0 to 6 km bulk shear 62 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
-90127 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
877 m above ground
0-6 km bulk shear
62 kt
0-1 km bulk shear
30 kt
0-1 km storm-relative helicity
156 m²/s²
0-3 km storm-relative helicity
219 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.4 K/km

Open this sounding in Storm Lab

The surface observations

Akron (AKR), 9 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
01:54 UTC6556200° 8 kt1003.7
01:55 UTC200° 8 kt1003.7
02:00 UTC200° 8 kt1003.4
02:05 UTC200° 8 kt1003.4
02:10 UTC210° 8 kt1003.4
02:15 UTC200° 9 kt1003.4
02:20 UTC200° 8 kt1003.4
02:25 UTC200° 8 kt1003.4
02:30 UTC200° 5 kt1003.4
02:35 UTC220° 5 kt1003.4
02:40 UTC210° 5 kt1003.4
02:45 UTC210° 5 kt1003
02:50 UTC210° 5 kt1002.7
02:54 UTC6656210° 7 kt1002.7
02:55 UTC210° 7 kt1002.7
03:00 UTC220° 8 kt1002.7
03:05 UTC210° 5 kt1002.4
03:10 UTC210° 7 kt1002.4
03:15 UTC210° 5 kt1002
03:20 UTC220° 5 kt1002
03:25 UTC230° 5 kt1002.4
03:30 UTC240° 4 kt1002.4
03:35 UTC230° 4 kt1002.4
03:40 UTC220° 8 kt1002
03:45 UTC230° 5 kt1002-RA
03:50 UTC320° 4 kt1002.4-RA
03:54 UTC6657340° 5 kt1002.7VCTS -RA
03:55 UTC340° 5 kt-RA
04:00 UTC350° 431005.4-RA SQ
04:05 UTC +RA
04:10 UTC5650360° 21 kt391005.4+TSRA
04:15 UTC350° 16 kt1005.8RA
04:20 UTC360° 14 kt1005.8RA
04:25 UTC350° 14 kt191005.8RA
04:30 UTC350° 16 kt211005.4RA
04:35 UTC 1005.4RA
04:40 UTC5752 1005.1VCTS RA
04:45 UTC 1005.4RA
04:50 UTC 1005.4RA
04:54 UTC5752 1005.4TSRA
04:55 UTC 1005.4RA
05:00 UTC 1005.4RA
05:05 UTC 1005.8RA
05:10 UTC 1005.4RA
05:15 UTC 1005.1RA
05:20 UTC 1004.7RA
05:25 UTC 1004.7RA
05:30 UTC 1004.4RA BR
05:35 UTC 1004.4-RA
05:40 UTC 1004.7RA
05:45 UTC 1005.1RA
05:50 UTC 1005.1RA

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

The radar

The Cleveland radar (KCLE), 55 km away, was scanning. The volume nearest the touchdown began at 03:52 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
02:59 UTCHAIL 12 E BrooklynCuyahoga, OHNICKEL TO QUARTER SIZE HAIL REPORTED IN OLD BROOKLYN.
03:12 UTCHAIL 21 Ene Newburgh HeightsCuyahoga, OH1.5 TO 2 INCH HAIL IN SLAVIC VILLAGE IN CLEVELAND... NEAR FLEET AVE AND E 65TH.
03:15 UTCTSTM WND DMG1 Sse ElyriaLorain, OHTREE DOWN ON HOME.
03:15 UTCHAIL 1.251 Ese AvonLorain, OHNEAR JAYCOX AND SCHWARTZ.
03:16 UTCHAIL 11 Nw AvonLorain, OHREPORT FROM MPING: QUARTER (1.00 IN.).
03:19 UTCTSTM WND DMG4 Wnw Eaton EstatesLorain, OH*DELAYED REPORT* 18 TREES DOWNED ON PROPERTY NEAR ROUTE 10 AND ROUTE 57.
03:23 UTCTSTM WND DMG3 E LagrangeLorain, OHBARN DESTROYED IN GRAFTON.
03:28 UTCTSTM WND DMG7 Se GraftonMedina, OHSTRAIGHT PATH OF TREES DOWN. MULTIPLE TREE TOPS CUT OFF.
03:30 UTCTSTM WND DMG1 Wsw Moreland HillsCuyahoga, OH*DELAYED REPORT* SEVERAL PINE TREES SNAPPED AND UPROOTED ON JACKSON ROAD IN MORELAND HILLS.
03:30 UTCTSTM WND GST 646 W BrunswickMedina, OH
03:30 UTCHAIL 1.252 Ese South RussellGeauga, OHFROM COCORAHS OBSERVER.
03:30 UTCTORNADO3 Sse GraftonLorain, OHTHIS IS THE INITIAL TOUCHDOWN OF A TORNADO. DAMAGE INDICATIVE OF AN EF-1 TORNADO HAS BEEN FOUND SO FAR. A NWS STORM SURVEY CONTINUES.
03:30 UTCTSTM WND DMGMineral CityTuscarawas, OHEM REPORTS SEVERAL TREES DOWN IN THE MINERAL CITY AREA.
03:35 UTCTSTM WND DMG1 Wnw MedinaMedina, OHSEVERAL REPORTS OF TREES DOWN ACROSS THE MEDINA AREA, INCLUDING SEVERAL ONTO STRUCTURES AND POWER LINES.
03:35 UTCTSTM WND DMG5 Nw MedinaMedina, OHPARTS OF ROOF/SIDING RIPPED OFF HOUSE/GARAGE.
03:35 UTCHAIL 1.54 W BrunswickMedina, OHREPORT FROM MPING: PING PONG BALL (1.50 IN.).
03:41 UTCTSTM WND DMG1 Se MedinaMedina, OHMULTIPLE TOPS OF TREES RIPPED OFF AND BLOWN 100 FEET AT THE INTERSECTION OF 57 AND SMOKERISE.
03:45 UTCTSTM WND DMGMantuaPortage, OHCORRECTS PREVIOUS TSTM WND DMG REPORT FROM MANTUA. VERY LARGE TREE FELL THROUGH A HOUSE NEAR MANTUA.
03:46 UTCTSTM WND DMG2 Ese Pigeon CreekSummit, OHSEVERAL TREES DOWN IN COPLEY.
03:48 UTCTSTM WND DMG1 Sw WadsworthMedina, OHSEVERAL TREES DOWN.
03:50 UTCTSTM WND DMG1 Ssw StowSummit, OH*DELAYED REPORT* LARGE TREE FELL ONTO CAR ON ADALINE NEAR GRAHAM AND RT 91. THREE UTILITY POLES WERE ALSO KNOCKED DOWN.
03:52 UTCTORNADO1 N BarbertonSummit, OHTHE NWS STORM SURVEY TEAM FOUND AN EF-1 TORNADO TOUCHED DOWN NEAR BARBERTON AND TRACKED SOUTHEAST TOWARDS GREEN. THE MAX ESTIMATED WINDS WERE UP TO 90 MPH WITH A PATH LENGTH OF ABOUT 8 MILES AND WIDTH OF 100 YARDS. THE S
03:54 UTCTSTM WND DMG2 Wnw ClintonWayne, OHAREAS OF ROOF DAMAGE AND LOTS OF TREES DOWN/UPROOTED IN DIFFERENT DIRECTIONS.
03:55 UTCTSTM WND DMG1 Nne BarbertonSummit, OHPINE TREES FELL ONTO CINDER BLOCK GARAGE. GARAGE DESTROYED.
03:55 UTCTSTM WND DMG2 Se DoylestownWayne, OHTWO LARGE PINE TREES DOWN. ONE ADDITIONAL PINE TREE SNAPPED 5 FEET FROM BASE. ONE POWER POLE SNAPPED. HAM RADIO TOWER BENT OVER.
03:55 UTCTSTM WND GST 58KentPortage, OH58 MPH WIND GUST MEASURED IN KENT.
03:59 UTCTSTM WND DMG1 Sse Portage LakesSummit, OHSEVERAL TREES TOPPLED ONTO HOUSES/CARS.
04:00 UTCTSTM WND DMG2 Sse ClintonStark, OHPRESS BOX AT FOOTBALL STADIUM TOPPLED AND DESTROYED VIA TWITTER.
04:02 UTCTSTM WND DMG1 E GreenSummit, OHSEVERAL TREES DOWN.
04:08 UTCHAIL 11 W Canal FultonStark, OHQUARTER SIZE HAIL VIA PICTURE.
04:09 UTCTSTM WND GST 682 Ssw GreenSummit, OHASOS STATION KCAK AKRON-CANTON REGIONAL ARPT.
04:12 UTCTSTM WND DMG5 W CanfieldMahoning, OHMULTIPLE STRUCTURES DAMAGED AND A COUPLE OF WAREHOUSES HEAVILY DAMAGED.
04:12 UTCTSTM WND DMGDaltonWayne, OHSEVERAL TREES DOWN, GARAGE DAMAGED.
04:14 UTCTSTM WND DMG1 Wnw MassillonStark, OHSEVERAL ROADWAYS CLOSED DUE TO DOWNED TREES/POWER LINES. DAMAGE TO SIDINGS AND AWNINGS ESPECIALLY ON THE WEST SIDE OF MASSILLON.
04:14 UTCTSTM WND DMGAllianceStark, OH*DELAYED REPORT* LARGE TREE UPROOTED IN ALLIANCE.
04:15 UTCTSTM WND DMG1 Se Hills And DalesStark, OHSEVERAL TREES DOWN/UPROOTED.
04:15 UTCTSTM WND DMG6 Ene BeloitMahoning, OHSEVERAL TREES UPROOTED.
04:15 UTCTSTM WND DMGNavarreStark, OHSEVERAL DOWNED/UPROOTED PINE TREES.
04:16 UTCTSTM WND DMG2 E NavarreStark, OH*DELAYED REPORT* SIGNIFICANT BARN DAMAGE WITH NUMEROUS TREES DOWNED ON KEMARY AVENUE.
04:16 UTCTSTM WND DMG4 Sse Perry HeightsStark, OH*DELAYED REPORT* ABOUT 200 YARD SPAN OF AT LEAST 10 DOWN TREES WITH DAMAGE TO VEHICLES AT SHEPLER CHURCH AVENUE SW AND ALLENWOOD STREET SW.

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 OhioEvery tornado in Ohio since 1950Warnings in force in Ohio nowThe forecast where you are

The other tornadoes of April 7, 2020

6 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 711:25 PM EDTEF1Medina, OH11.4100$80,000
April 712:10 AM EDTEF0Stark, OH15.7100
April 712:33 AM EDTEF1Columbiana, OH5.5250
April 711:37 PM CDTEF0Columbiana, OH to PA3.8100
April 71:11 AM EDTEF1Allegheny, PA3.8250$110,000
April 71:17 AM EDTEF0Westmoreland, PA0.175$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.