Tornadoes · United States · Mississippi · 2021

EF0 tornado, Sabougla to Calhoun City, Mississippi, May 2, 2021

From Sabougla to Calhoun City, this EF0 tornado ran 1.3 miles across Calhoun County on May 2, 2021, touching down at 8:08 PM CDT and reaching 50 yards wide. It killed nobody, and did $10,000 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 2, 2021
Touchdown
8:08 PM CDT (01:08 UTC)
Lifted
8:11 PM CDT (01:11 UTC)
On the ground
3 minutes
Path length
1.3 miles (2.1 km)
Path width
50 yards (46 m)
Deaths
0
Injuries
0
Property damage
$10,000
County
Calhoun County
Touchdown point
33.762, -89.471
Lift-off point
33.775, -89.455
Record number
2105021908-01

What the Weather Service recorded

A warm front lifted north into North Mississippi while an upper-level disturbance pushed into the Lower Mississippi Valley. Low topped supercells developed across central Mississippi and lifted north with the warm front. A long-lived supercell tracked from Calhoun County into Itawamba County during the evening hours of May 2nd. Several tornadoes touched down along the track of this supercell resulting in damage, especially in the Tupelo area.

A weak tornado knocked down trees along County Road 380 in Sabougla. Peak winds were estimated at 75 mph.

Tornado began just south of Calhoun City and tracked through the east side. Damage to trees was first noted south of town. Roof damage occurred to homes, apartments, and structures due to tree fall and wind force. An older masonry building was destroyed. In total, 43 homes, six businesses, and two public bridges suffered some level of damage. Peak winds were estimated at 90 mph.

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

The warnings

26 minutes of warning. NWS MEG issued a tornado warning for this county at 00:42 UTC, 26 minutes before the tornado touched down, in force until 01:30 UTC.

The county was under a tornado watch, issued at 21:47 UTC and running to 03:00 UTC.

Issued (UTC)ExpiredProductOffice
21:47 UTC03:00 UTCTornado WatchMEG
00:42 UTC01:30 UTCTornado WarningMEG
01:29 UTC02:15 UTCTornado WarningMEG

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 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.

Little Rock, AR (KLZK), 00:00Z

1.1 hours before the tornado, 126 km from the path. May 3, 2021.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 2021-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 36 joules per kilogram, CIN -39, lifted condensation level 777 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, Little Rock, AR at 00:00Z on 2021-05-03The 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 59 square meters per square second, 0 to 6 km bulk shear 22 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
36 J/kg
Mixed-layer CIN
-39 J/kg
Surface CAPE
838 J/kg
Mixed-layer LCL
777 m above ground
0-6 km bulk shear
22 kt
0-1 km bulk shear
10 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5
0-3 km lapse rate
5.8 K/km

Open this sounding in Storm Lab

Little Rock, AR (KLZK), 12:00Z

10.9 hours after it, 126 km from the path. May 3, 2021.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2021-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1119 joules per kilogram, CIN -21, lifted condensation level 546 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, Little Rock, AR at 12:00Z on 2021-05-03The 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 141 square meters per square second, 0 to 6 km bulk shear 34 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
1119 J/kg
Mixed-layer CIN
-21 J/kg
Surface CAPE
766 J/kg
Mixed-layer LCL
546 m above ground
0-6 km bulk shear
34 kt
0-1 km bulk shear
20 kt
0-1 km storm-relative helicity
141 m²/s²
0-3 km storm-relative helicity
199 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.2
0-3 km lapse rate
4.5 K/km

Open this sounding in Storm Lab

The surface observations

Winona (5A6), 42 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
23:15 UTC69.467.3190° 4 kt1004.4-RA
23:35 UTC69.467.6190° 5 kt1004.4RA
23:55 UTC69680° 0 kt1004.1RA
00:15 UTC6968.20° 0 kt1003.7RA
00:35 UTC6968.5190° 4 kt1004.1RA
00:55 UTC6968.2260° 6 kt201004.4-RA
01:15 UTC6966.4200° 4 kt1004.4
01:35 UTC6866.4190° 4 kt1004.7
01:55 UTC67.366.6180° 5 kt1005.1
02:15 UTC67.667170° 4 kt1005.1
02:35 UTC6867160° 5 kt1005.1
02:55 UTC6867190° 6 kt1005.4

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

The radar

The Columbus AFB radar (KGWX), 106 km away, was scanning. The volume nearest the touchdown began at 01:06 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
00:03 UTCTSTM WND DMG1 Se CarrolltonCarroll, MSA DOWNED TREE WAS BLOCKING HWY 35.
00:46 UTCTSTM WND DMG6 W AlvaMontgomery, MSA COUPLE TREES DAMAGED ON FIELD EDGE.
00:48 UTCTSTM WND DMG4 Wnw CadarettaGrenada, MSLARGE TREE DOWN.
01:09 UTCTORNADO1 Ne SabouglaCalhoun, MSA TORNADO DEBRIS SIGNATURE (TDS) WAS OBSERVED WITH THE TORNADO AS IT MOVED THROUGH SABOUGLA.
01:14 UTCTSTM WND DMG3 S StewartChoctaw, MSCORRECTS PREVIOUS TSTM WND DMG REPORT FROM 3 S STEWART. TREES DOWN ON STEWART LAKE ROAD.
01:17 UTCTSTM WND DMG2 Se StewartChoctaw, MSCORRECTS PREVIOUS TSTM WND DMG REPORT FROM 2 SE STEWART. TREES DOWN ALONG PEARSON ROAD.
01:17 UTCTSTM WND DMG2 Se StewartChoctaw, MSTREES DOWN ALONG PEARSON ROAD.
01:17 UTCTSTM WND DMG3 S StewartChoctaw, MSTREES DOWN ON STEWART LAKE ROAD.
01:18 UTCTSTM WND DMG3 N HuntsvilleMontgomery, MSTREES DOWN.
01:33 UTCTORNADOSw Calhoun CityCalhoun, MSTREES DOWN AND POWER LINES DOWN JUST OUTSIDE OF CALHOUN CITY. ROTATION NOTED AND SURFACE WINDS APPROX.60 MPH.
02:13 UTCTORNADO1 Ne HoulkaChickasaw, MSA TORNADO DEBRIS SIGNATURE (TDS) WAS OBSERVED NEAR THE CHICKASAW AND PONTOTOC COUNTY LINE NEAR HOULKA.
03:13 UTCTORNADO1 Ne HoulkaChickasaw, MSA TORNADO DEBRIS SIGNATURE (TDS) WAS OBSERVED NEAR THE CHICKASAW AND PONTOTOC COUNTY LINE NEAR HOULKA.

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

This ground now

The live radar over the trackEvery 2021 tornado in MississippiEvery tornado in Mississippi since 1950Warnings in force in Mississippi nowThe forecast where you are

The other tornadoes of May 2, 2021

26 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 23:45 PM CDTEF0Greene, AL1.445
May 24:57 PM CDTUnratedMadison Parish, LA1.425
May 25:25 PM CDTUnratedTuscaloosa, AL0.325
May 24:26 PM MDTUnratedBent, CO0.920
May 25:46 PM CDTUnratedLaSalle Parish, LA1.225
May 25:46 PM CDTEF1Issaquena, MS30.1300$505,000
May 25:53 PM CDTEF1Holmes, MS10.6450$40,000
May 25:55 PM CDTEF1Jefferson, MS14.0650$30,000
May 26:31 PM CDTEF2Holmes, MS6.0510$75,000
May 26:44 PM CDTEF0Yazoo, MS8.2100$15,000
May 26:52 PM CDTEF0Union Parish, LA0.180
May 27:20 PM CDTEF1Holmes, MS4.2300$100,000
May 27:22 PM CDTEF1Hinds, MS6.91,000$200,000
May 27:41 PM CDTEF1Madison, MS3.4250$8,000
May 27:42 PM CDTEF1Attala, MS7.5110$20,000
May 27:51 PM CDTUnratedHamilton, NE0.040
May 27:51 PM CDTEF0Hamilton, NE0.9150$45,000
May 27:57 PM CDTEF0Kearney, NE1.7150
May 28:06 PM CDTEF0Polk, NE1.3100$45,000
May 28:17 PM CDTEF0Leake, MS2.950$10,000
May 28:23 PM CDTEF0Choctaw, MS2.160$5,000
May 28:30 PM CDTEF1Calhoun, MS2.150$500,000
May 29:15 PM CDTEF0Chickasaw, MS7.550$25,000
May 29:40 PM CDTEF1Pontotoc, MS4.5150$125,000
May 29:53 PM CDTEF1Lee, MS12.7400$1.0 million
May 210:22 PM CDTEF0Lee, MS2.0100$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.