Tornadoes · United States · Delaware · 2012

EF0 tornado, Wyoming, Delaware, September 3, 2012

This EF0 tornado ran 0.2 miles across Kent County on September 3, 2012, touching down at 3:20 PM 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.

  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
September 3, 2012
Touchdown
3:20 PM EDT (19:20 UTC)
Lifted
3:21 PM EDT (19:21 UTC)
On the ground
1 minutes
Path length
0.2 miles (0.3 km)
Path width
35 yards (32 m)
Deaths
0
Injuries
0
Property damage
$100,000
County
Kent County
Touchdown point
39.098, -75.565
Lift-off point
39.101, -75.564
Record number
1209031320-01

What the Weather Service recorded

An isolated tornado occurred in Camden. The combination of a stationary front, a moist and unstable air mass and the approaching remnants of Isaac produced sufficient shear to generate a tornado.

An EF0 tornado touched down in the Barclay Farms Subdivision in Camden with an estimated maximum wind speed of 85 mph. The tornado damaged approximately ten homes, six of them seriously and caused two injuries. Six homes were considered uninhabitable and gas lines were turned off in the development. The tornado touched down on Dawson Lane and paralleled the train tracks from south to north. Structural damage to homes occurred from Dalby Lane north through Carey Lane. The tornado lifted after it passed Carey Lane. At one home, the wind tore the roof off a garage, damaging the two cars inside and the side of the home. The owner of the house was hospitalized after he cut his hand on a piece of broken glass. A firefighter was also injured assisting another resident. About 1,200 customers of the Delaware Electric Co-Operative lost power after the tornado moved through. All service was restored by 630 p.m. EDT that evening. The tornado's path length was approximately 0.2 miles and its maximum path width was 35 yards.

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. One was issued for the county at another hour that day.

Issued (UTC)ExpiredProductOffice
17:48 UTC20:28 UTCFlood AdvisoryPHI
17:53 UTC20:32 UTCFlood AdvisoryPHI
19:14 UTC22:45 UTCFlash Flood WarningPHI
19:25 UTC19:45 UTCTornado WarningPHI

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 17:01 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 radar

The Dover AFB radar (KDOX), 32 km away, was scanning. The volume nearest the touchdown began at 19:20 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
19:20 UTCTORNADOCamdenKent, DE*** 2 INJ *** EF-0 TORNADO HAS BEEN CONFIRMED IN THE BARKLEY FARMS SUBDIVISION OF CAMDEN WITH ESTIMATED MAXIMUM WINDS OF 85 MPH. PLEASE REFER TO PNS FOR MORE.
19:23 UTCTSTM WND DMGCamdenKent, DETWO HOUSES WITH ROOF DAMAGE AND A GARAGE DOOR BLOWN IN. MULTIPLE REPORTS OF FUNNEL CLOUD. 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 2012 tornado in DelawareEvery tornado in Delaware since 1950Warnings in force in Delaware nowThe forecast where you are

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.