Tornadoes · United States · Mississippi · 2004

F1 tornado, Enon, Mississippi, May 1, 2004

This F1 tornado ran 9.0 miles across Walthall and Lawrence counties on May 1, 2004, touching down at 4:03 PM CDT and reaching 100 yards wide. It killed nobody, and did $70,000 of property damage.

The rating scale

Tracks are drawn in the color of the rating. The Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. F040 to 72 mph

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. F173 to 112 mphthis tornado

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. F2113 to 157 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. F3158 to 206 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. F4207 to 260 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. F5261 to 318 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
F1
Date
May 1, 2004
Touchdown
4:03 PM CDT (21:03 UTC)
Path length
9.0 miles (14.5 km)
Path width
100 yards (91 m)
Deaths
0
Injuries
0
Property damage
$70,000
Counties
Walthall and Lawrence counties
Touchdown point
31.330, -90.250
Lift-off point
31.420, -90.080
Record number
143

What the Weather Service recorded

A tornado touched down along an intermittent path in extreme northern Walthall County. Numerous trees were downed or their main trunks snapped. Several buildings and mobile homes were damaged by wind or fallen trees. The tornado continued to move northeast in Lawrence County in southern Mississippi. See additonal information in Storm Data entries from the National Weather Service - Jackson, Mississippi.

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.

Issued (UTC)ExpiredProductOffice
20:25 UTC21:00 UTCSevere Thunderstorm WarningLIX
21:02 UTC21:45 UTCSevere Thunderstorm WarningLIX

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 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 19:39 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.

Jackson, MS (KJAN), 12:00Z

9.1 hours before the tornado, 105 km from the path. May 1, 2004.

Skew-T log-pSkew-T log-p diagram, Jackson, MS at 12:00Z on 2004-05-01Temperature 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 -83112, lifted condensation level 1278 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, Jackson, MS at 12:00Z on 2004-05-01The 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 31 square meters per square second, 0 to 6 km bulk shear 20 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
0 J/kg
Mixed-layer CIN
-83112 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
1278 m above ground
0-6 km bulk shear
20 kt
0-1 km bulk shear
10 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.3 K/km

Open this sounding in Storm Lab

Jackson, MS (KJAN), 00:00Z

2.9 hours after it, 105 km from the path. May 2, 2004.

Skew-T log-pSkew-T log-p diagram, Jackson, MS at 00:00Z on 2004-05-02Temperature 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 -76159, lifted condensation level 1001 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, Jackson, MS at 00:00Z on 2004-05-02The 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 -41 square meters per square second, 0 to 6 km bulk shear 43 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
0 J/kg
Mixed-layer CIN
-76159 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
1001 m above ground
0-6 km bulk shear
43 kt
0-1 km bulk shear
14 kt
0-1 km storm-relative helicity
-41 m²/s²
0-3 km storm-relative helicity
-43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.1 K/km

Open this sounding in Storm Lab

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
21:00 UTCHAIL 0.758 N PrentissJefferson Davis, MS
21:20 UTCTSTM WND DMGCollinsCovington, MSHOUSE DAMAGED
21:20 UTCTSTM WND DMGCollinsCovington, MSLARGE TREE ON TOP OF MOBILE HOME.
21:25 UTCTSTM WND DMG5 Se TopekaLawrence, MSDIVINE ROAD BLOCK BY TREE
21:25 UTCHAIL 15 N TopekaLawrence, MS
21:45 UTCTSTM WND DMGPrentissJefferson Davis, MSLARGE TREE ON ROAD ACROSS FROM FIRE DEPARTMENT
21:50 UTCTSTM WND DMGBassfieldJefferson Davis, MS15-20 TREES DOWN ACROSS HIGHWAY 35 AND 42.
21:50 UTCTSTM WND DMGPrentissJefferson Davis, MSTREES DOWN ON HIGHWAY 35 AND 42.

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

This ground now

The live radar over the trackEvery 2004 tornado in MississippiEvery tornado in Mississippi since 1950Warnings in force in Mississippi nowThe forecast where you are

The other tornadoes of May 1, 2004

9 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 11:00 AM CDTF0Boone, AR3.525
May 14:24 AM CDTF1Wayne, MO0.250$10,000
May 18:45 AM CDTF1Harris, TX0.5451$280,000
May 19:12 AM CDTF0Harris, TX0.120
May 110:00 AM CDTF0Harris, TX0.120
May 13:10 PM CDTF0Hancock, IA3.050
May 13:43 PM CDTF1Jefferson Davis, MS9.0300$30,000
May 14:02 PM CDTF1Covington, MS0.775$30,000
May 14:32 PM CDTF1Jefferson Davis, MS6.0100$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.