Tornadoes · United States · Georgia · 2017

EF0 tornado, Massee, Georgia, May 24, 2017

This EF0 tornado ran 1.1 miles across Cook County on May 24, 2017, touching down at 4:48 PM EDT and reaching 568 yards wide. It killed nobody, and did $5,000 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
May 24, 2017
Touchdown
4:48 PM EDT (20:48 UTC)
Lifted
4:53 PM EDT (20:53 UTC)
On the ground
5 minutes
Path length
1.1 miles (1.8 km)
Path width
568 yards (519 m)
Deaths
0
Injuries
0
Property damage
$5,000
County
Cook County
Touchdown point
31.166, -83.358
Lift-off point
31.179, -83.346
Record number
1705241448-01

The damage survey

12 damage points were recorded along this path by NWS TAE, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 80 mph.

  • Isolated instances of limbs down. Irrigation pivot along road still standing at this point.
  • End of irrigation pivot flipped. Minor porch damage to house across street. Pivot and tree limbs fell in a northerly direction.
  • One tree uprooted. Majority large limbs down. pointed in a northerly direction
  • 80 yr old trees uprooted. Small barn heavily damaged. Partially built house destroyed. Minor damage to a trailer.

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 couple of days of severe weather impacted southern Georgia on May 23rd and 24th. Two EF0 tornadoes occurred, and some straight line wind damage also occurred with impacts to trees and power lines.

This tornado started near the intersection of Hutchinson Parrish and Howard Bennett Roads and moved north-northeast across an open field, growing in size to roughly 0.3 miles wide. The tornado then impacted an irrigation pivot along the south side of Boone Road, before impacting several residences on the north side of Boone Road. While there were sporadic instances of trees uprooted or snapped, all structural damage associated with this tornado was minor and mainly limited to the loss of metal roofs and shingles. Damage cost was estimated.

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 15:05 UTC and running to 00:05 UTC.

Issued (UTC)ExpiredProductOffice
15:05 UTC00:05 UTCTornado WatchTAE
20:46 UTC21:00 UTCSevere Thunderstorm WarningTAE

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 Marginal Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 20:06 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.

Tallahassee Rgnl, FL (KTLH), 12:00Z

8.8 hours before the tornado, 125 km from the path. May 24, 2017.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 12:00Z on 2017-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 673 joules per kilogram, CIN -38, lifted condensation level 807 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, Tallahassee Rgnl, FL at 12:00Z on 2017-05-24The 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 99 square meters per square second, 0 to 6 km bulk shear 50 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
673 J/kg
Mixed-layer CIN
-38 J/kg
Surface CAPE
1637 J/kg
Mixed-layer LCL
807 m above ground
0-6 km bulk shear
50 kt
0-1 km bulk shear
24 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.9
0-3 km lapse rate
5.1 K/km

Open this sounding in Storm Lab

Tallahassee Rgnl, FL (KTLH), 00:00Z

3.2 hours after it, 125 km from the path. May 25, 2017.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2017-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 687 joules per kilogram, CIN -9, lifted condensation level 855 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, Tallahassee Rgnl, FL at 00:00Z on 2017-05-25The 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 37 square meters per square second, 0 to 6 km bulk shear 66 knots.1939587897117136Sfc1 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
687 J/kg
Mixed-layer CIN
-9 J/kg
Surface CAPE
1737 J/kg
Mixed-layer LCL
855 m above ground
0-6 km bulk shear
66 kt
0-1 km bulk shear
26 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.4
0-3 km lapse rate
6.4 K/km

Open this sounding in Storm Lab

The radar

The Moody AFB radar (KVAX), 46 km away, was scanning. The volume nearest the touchdown began at 20:46 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
20:48 UTCTORNADO 04 Ene AdelCook, GASPORADIC INSTANCES OF TREES SNAPPED AND UPROOTED ALONG WITH MINOR STRUCTURAL DAMAGE CONSISTING OF METAL ROOF AND SHINGLE DAMAGE. RATED EF0 WITH PEAK WINDS ESTIMATED NEAR 80 MPH.
20:54 UTCTSTM WND DMG4 Ene AdelCook, GATREES DOWN NEAR LONNIE GRIMSLEY RD, HOWARD BENNETT RD AND BOONE RD
20:54 UTCTSTM WND DMG4 Ene AdelCook, GABACKYARD ITEMS INCLUDING A TRAMPOLINE WERE BLOWN APPROXIMATELY 200 FEET.
21:02 UTCTSTM WND DMG1 Sw NashvilleBerrien, GAONE TREE DOWN ON LUCILE STREET.
21:02 UTCTSTM WND DMG2 Sw NashvilleBerrien, GAONE TREE DOWN ON SHANE CIRCLE.

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

This ground now

The live radar over the trackEvery 2017 tornado in GeorgiaEvery tornado in Georgia since 1950Warnings in force in Georgia nowThe forecast where you are

The other tornadoes of May 24, 2017

26 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 248:53 AM EDTUnratedSaint Johns, FL0.625
May 249:45 AM EDTEF1Whitfield, GA1.6200$20,000
May 2410:47 AM EDTEF0Gordon, GA0.390$10,000
May 2410:50 AM EDTEF0Gordon, GA0.390$30,000
May 2411:16 AM EDTEF0Gilmer, GA0.130$8,000
May 2411:43 AM EDTEF0Fannin, GA0.135$7,000
May 2411:36 AM CDTEF0Smith, TN2.575$50,000
May 242:05 PM EDTEF0Laurens, GA2.3240$25,000
May 242:40 PM EDTEF1Saluda, SC2.975
May 243:04 PM EDTEF2Saluda, SC12.1250
May 243:26 PM EDTEF0Iredell, NC1.150$10,000
May 243:41 PM EDTEF2Iredell, NC3.2100$250,000
May 244:14 PM EDTEF2Davie, NC5.92251$9.6 million
May 243:19 PM CDTEF1Lancaster, SC to NC8.150$100,000
May 244:52 PM EDTEF2Stokes, NC16.1700$20 million
May 247:47 PM EDTEF0Warren, OH0.225
May 248:11 PM EDTEF1Lawrence, OH3.0100$100,000
May 248:26 PM EDTEF0Greene, OH2.640$3,000
May 248:27 PM EDTEF0Fayette, OH0.725
May 248:30 PM EDTEF0Greene, OH2.225
May 249:06 PM EDTEF0Greene, OH1.690$2,000
May 249:12 PM EDTEF0Clark, OH1.190$100,000
May 249:16 PM EDTEF1Clark, OH0.4300$250,000
May 249:20 PM EDTEF1Miami, OH4.1300$50,000
May 2410:03 PM EDTEF1Miami, OH1.9160$5,000
May 2411:09 PM EDTEF1Toombs, GA4.2440$50,000

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.