Tornadoes · United States · Georgia · 2015

EF0 tornado, Cordrays Mill, Georgia, November 2, 2015

This EF0 tornado ran 2.5 miles across Calhoun County on November 2, 2015, touching down at 12:49 PM EST and reaching 50 yards wide. It killed nobody.

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
November 2, 2015
Touchdown
12:49 PM EST (17:49 UTC)
Lifted
12:54 PM EST (17:54 UTC)
On the ground
5 minutes
Path length
2.5 miles (4.0 km)
Path width
50 yards (46 m)
Deaths
0
Injuries
0
County
Calhoun County
Touchdown point
31.596, -84.583
Lift-off point
31.624, -84.557
Record number
1511021149-01

What the Weather Service recorded

A cold front moved into the tri-state area with heavy rainfall and some severe weather. In southern Georgia, there were 4 EF0 tornadoes confirmed with minor damage reported.

The KEOX dual-pol radar confirmed a brief tornado touchdown north of Morgan with an unambiguous tornadic debris signature. The only damage was to trees with no structural damage was reported in this very rural area.

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

The warnings

2 minutes of warning. NWS TAE issued a tornado warning for this county at 17:47 UTC, 2 minutes before the tornado touched down, in force until 17:59 UTC.

Issued (UTC)ExpiredProductOffice
08:17 UTC22:17 UTCFlash Flood WatchTAE
17:47 UTC17:59 UTCTornado WarningTAE
18:15 UTC21:43 UTCTornado WatchTAE

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 16:16 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

5.8 hours before the tornado, 137 km from the path. November 2, 2015.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 12:00Z on 2015-11-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 230 joules per kilogram, CIN -14, lifted condensation level 641 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 2015-11-02The 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 123 square meters per square second, 0 to 6 km bulk shear 38 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
230 J/kg
Mixed-layer CIN
-14 J/kg
Surface CAPE
1576 J/kg
Mixed-layer LCL
641 m above ground
0-6 km bulk shear
38 kt
0-1 km bulk shear
21 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.1
Supercell composite
3.2
0-3 km lapse rate
4.8 K/km

Open this sounding in Storm Lab

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

6.2 hours after it, 137 km from the path. November 3, 2015.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2015-11-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 85 joules per kilogram, CIN -56, lifted condensation level 789 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 2015-11-03The 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 43 square meters per square second, 0 to 6 km bulk shear 30 knots.193958Sfc1 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
85 J/kg
Mixed-layer CIN
-56 J/kg
Surface CAPE
529 J/kg
Mixed-layer LCL
789 m above ground
0-6 km bulk shear
30 kt
0-1 km bulk shear
16 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
-8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2
0-3 km lapse rate
4.6 K/km

Open this sounding in Storm Lab

The surface observations

Albany Municipal (ABY), 37 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
15:53 UTC7875180° 6 kt1014.2
16:53 UTC8174190° 8 kt1013.5
17:53 UTC8074230° 3 kt1012.9
18:27 UTC7875290° 3 kt1012.5-TSRA
18:50 UTC7775.2310° 4 kt1012.5-TSRA
18:53 UTC7775300° 4 kt1012.5-TSRA
19:21 UTC7774260° 7 kt1012.9+RA BR

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

The radar

The Ft Rucker radar (KEOX), 86 km away, was scanning. The volume nearest the touchdown began at 17:49 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
17:49 UTCTORNADO4 Nne MorganCalhoun, GAKEOX DUAL-POL RADAR CONFIRMED A BRIEF TORNADO TOUCHDOWN NORTH OF MORGAN WITH AN UNAMBIGUOUS TORNADIC DEBRIS SIGNATURE. NO STRUCTURAL DAMAGE HAS BEEN REPORTED TO US AT THIS TIME.
18:16 UTCTSTM WND DMG2 Nnw EnterpriseMiller, GATREES DOWN AND HOUSE DAMAGE ALONG UNION CHURCH ROAD. SOME VINYL SIDING WAS BLOWN OFF. POSSIBLE TORNADO.

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

This ground now

The live radar over the trackEvery 2015 tornado in GeorgiaEvery tornado in Georgia since 1950Warnings in force in Georgia nowThe forecast where you are

The other tornadoes of November 2, 2015

4 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
November 210:54 AM CSTEF1Washington, FL6.250$75,000
November 21:11 PM ESTEF0Miller, GA0.150$50,000
November 24:06 PM ESTEF1Telfair, GA1.650$25,000
November 24:32 PM ESTEF1Telfair, GA0.850$25,000

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.