Tornadoes · United States · Ohio · 2023

EF0 tornado, Convoy, Ohio, February 27, 2023

This EF0 tornado ran 0.6 miles across Van Wert County on February 27, 2023, touching down at 3:00 PM EST and reaching 75 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
February 27, 2023
Touchdown
3:00 PM EST (20:00 UTC)
Lifted
3:02 PM EST (20:02 UTC)
On the ground
2 minutes
Path length
0.6 miles (0.9 km)
Path width
75 yards (69 m)
Deaths
0
Injuries
0
Property damage
$30,000
County
Van Wert County
Touchdown point
40.917, -84.716
Lift-off point
40.919, -84.705
Record number
2302271400-01

What the Weather Service recorded

A surface low moving through the Midwest resulted in heavy rain with embedded thunderstorms in the morning along the warm front, followed by afternoon thunderstorms along a cold front. Thunderstorm wind damage was common, with estimated wind gusts of 55-65 mph.

A weak circulation touched down on the north side of Convoy Road|at a residence where two tree limbs fell in a convergent pattern and|debris from a swing set was thrown down the center point of the|path. The outer edge of the circulation also picked up an small,|unanchored chicken coop over a shed, clipping the roof corner and|dropping on the east side . The tornado pushed in the SW side of a|large metal shed and pushing out metal roofing. The tornado|continued across Sycamore St, crossing SR 49 and began weakening|as it move across Hall Dr, producing sporadic tree and shingle|damage. The tornado lifted before reaching Franklin St.

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 tornado watch, issued at 18:28 UTC and running to 21:06 UTC.

Issued (UTC)ExpiredProductOffice
18:28 UTC21:06 UTCTornado WatchIWX
20:26 UTC21:00 UTCSevere Thunderstorm WarningIWX

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 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 19:40 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

8.0 hours before the tornado, 183 km from the path. February 27, 2023.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2023-02-27Temperature 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 -102072, lifted condensation level 993 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, Cncnati-Daytn, OH at 12:00Z on 2023-02-27The 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 269 square meters per square second, 0 to 6 km bulk shear 58 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
-102072 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
993 m above ground
0-6 km bulk shear
58 kt
0-1 km bulk shear
23 kt
0-1 km storm-relative helicity
269 m²/s²
0-3 km storm-relative helicity
367 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
3.4 K/km

Open this sounding in Storm Lab

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

4.0 hours after it, 183 km from the path. February 28, 2023.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 2023-02-28Temperature 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 -93402, lifted condensation level 1405 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, Cncnati-Daytn, OH at 00:00Z on 2023-02-28The 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 284 square meters per square second, 0 to 6 km bulk shear 69 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
0 J/kg
Mixed-layer CIN
-93402 J/kg
Surface CAPE
18 J/kg
Mixed-layer LCL
1405 m above ground
0-6 km bulk shear
69 kt
0-1 km bulk shear
38 kt
0-1 km storm-relative helicity
284 m²/s²
0-3 km storm-relative helicity
361 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
7.0 K/km

Open this sounding in Storm Lab

The surface observations

Van Wert County (VNW), 10 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
18:15 UTC51.850
18:35 UTC
18:55 UTC 987.8
19:15 UTC55.451.8
19:35 UTC5953.6160° 14 kt986.1
19:55 UTC57.253.6160° 11 kt20985.4-RA
20:15 UTC57.253.6160° 11 kt19985.1-VCTSRA
20:35 UTC55.451.8260° 18 kt27986.1+VCTSRA
20:55 UTC53.650280° 18 kt26986.5RA
21:15 UTC53.650290° 13 kt19986.8-RA
21:35 UTC53.650280° 13 kt987.8
21:55 UTC51.848.2280° 19 kt31988.5-RA

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

The radar

The Northern Indiana radar (KIWX), 96 km away, was scanning. The volume nearest the touchdown began at 20:00 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
20:00 UTCTSTM WND DMG1 W ConvoyVan Wert, OHPOWER POLE DOWN ON CAR. TIME ESTIMATED BY RADAR.
20:00 UTCTORNADO1 W ConvoyVan Wert, OHEF0 TORNADO OCCURRED WITHIN AREA OF DAMAGING WINDS. PATH APPROXIMATELY 0.6 MILES WITH WIDTH OF 75 YARDS. ESTIMATED PEAK WINDS OF 70 MPH.
20:02 UTCTSTM WND GST 57ConvoyVan Wert, OH
20:02 UTCTSTM WND GST 57ConvoyVan Wert, OH
20:05 UTCTSTM WND DMGConvoyVan Wert, OHCONVOY FIRE DEPARTMENT REPORTING STRUCTURAL ROOF DAMAGE TO SOME HOMES AND BUILDINGS IN CONVOY. ALSO SOME TREES SNAPPED IN THE AREA.
20:08 UTCTSTM WND DMGHavilandPaulding, OHEMERGENCY MANAGER REPORTED THUNDERSTORM GUST WIND DAMAGE TO A CLOSED DOWN RESTAURANT AND OUTBUILDING JUST EAST OF HAVILAND IN PAULDING COUNTY IN OHIO NEAR INTERSECTION OF STATE ROUTE 127 AND ROAD 114.

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

This ground now

The live radar over the trackEvery 2023 tornado in OhioEvery tornado in Ohio since 1950Warnings in force in Ohio nowThe forecast where you are

The other tornadoes of February 27, 2023

15 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
February 271:02 AM CSTEF1Newton, MO0.8200$550,000
February 271:25 AM CSTEF0Dade, MO0.4200$50,000
February 271:47 AM CSTEF0Dade, MO1.3100
February 278:43 AM CSTEF0Champaign, IL1.130
February 278:55 AM CSTUnratedChampaign, IL1.525
February 279:15 AM CSTUnratedFord, IL1.650
February 279:41 AM CSTEF0Kendall, IL2.2100
February 279:52 AM CSTEF0DuPage, IL1.430
February 271:28 PM ESTEF1Hancock, IN5.250$200,000
February 271:37 PM ESTEF1Hancock, IN0.350$50,000
February 272:37 PM ESTEF1Butler, OH4.2150$500,000
February 273:19 PM ESTEF1Clark, OH2.3300$250,000
February 2712:24 PM PSTUnratedMendocino, CA0.110
February 274:03 PM ESTEF0Pickaway, OH1.4100$150,000
February 274:41 PM ESTEF0Licking, OH0.390$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.