Tornadoes · United States · New Mexico · 1997

F1 tornado, Hobbs, New Mexico, May 6, 1997

This F1 tornado ran 1.0 miles across Lea County on May 6, 1997, touching down at 7:09 PM MDT and reaching 200 yards wide. It killed nobody, and did $60,000 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 6, 1997
Touchdown
7:09 PM MDT (01:09 UTC)
Path length
1.0 miles (1.6 km)
Path width
200 yards (183 m)
Deaths
0
Injuries
0
Property damage
$60,000
County
Lea County
Touchdown point
32.800, -103.180
Lift-off point
32.780, -103.180
Record number
380

What the Weather Service recorded

With temperatures in the lower 90s in dew points in the upper 50s to lower 60s there was plenty of buoyant energy for thunderstorm development in southeast New Mexico. Also an old frontal boundary was in the area to help focus the activity. Storms moved to the ESE and making for good relative inflow.

A strong mesocyclone on the leading edge of the severe thunderstorm moving to the ESE produced a tornado on the southeast flank of the storm. This storm displayed some characteristics of an HP supercell, but with much of the forward flank missing.Damage ranged from F0 on the southern end (probably from an RFD) to F1 damage in the heart of the tornado path. A damage survey discovered a highly convergent pattern to the debris path of the tornado. Damage ranged from travel trailers overturned, to mobile homes pushed from foundation and roof sections missing, to a barn that was levelled and unrecognizable.

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
23:09 UTC00:10 UTCSevere Thunderstorm WarningMAF
23:36 UTC00:10 UTCSevere Thunderstorm WarningMAF
00:04 UTC00:35 UTCTornado WarningMAF
00:13 UTC01:15 UTCSevere Thunderstorm WarningMAF

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 05:55 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.

Midland Regional, TX (KMAF), 00:00Z

1.2 hours before the tornado, 131 km from the path. May 7, 1997.

Skew-T log-pSkew-T log-p diagram, Midland Regional, TX at 00:00Z on 1997-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 384 joules per kilogram, CIN -365, lifted condensation level 1828 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 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, Midland Regional, TX at 00:00Z on 1997-05-07The 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 853 square meters per square second, 0 to 6 km bulk shear 43 knots.1939587897Sfc1 km3 km6 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
384 J/kg
Mixed-layer CIN
-365 J/kg
Surface CAPE
792 J/kg
Mixed-layer LCL
1828 m above ground
0-6 km bulk shear
43 kt
0-1 km bulk shear
67 kt
0-1 km storm-relative helicity
853 m²/s²
0-3 km storm-relative helicity
1087 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1
0-3 km lapse rate
6.8 K/km

Open this sounding in Storm Lab

Midland Regional, TX (KMAF), 12:00Z

10.8 hours after it, 131 km from the path. May 7, 1997.

Skew-T log-pSkew-T log-p diagram, Midland Regional, TX at 12:00Z on 1997-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 681 joules per kilogram, CIN -512, lifted condensation level 1994 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, Midland Regional, TX at 12:00Z on 1997-05-07The 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 143 square meters per square second, 0 to 6 km bulk shear 28 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
681 J/kg
Mixed-layer CIN
-512 J/kg
Surface CAPE
1819 J/kg
Mixed-layer LCL
1994 m above ground
0-6 km bulk shear
28 kt
0-1 km bulk shear
25 kt
0-1 km storm-relative helicity
143 m²/s²
0-3 km storm-relative helicity
243 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2
0-3 km lapse rate
4.2 K/km

Open this sounding in Storm Lab

The radar

The Midland/Odessa radar (KMAF), 132 km away, was scanning. The volume nearest the touchdown began at 01:08 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.

This ground now

The live radar over the trackEvery 1997 tornado in New MexicoEvery tornado in New Mexico since 1950Warnings in force in New Mexico nowThe forecast where you are

The other tornadoes of May 6, 1997

2 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 68:07 PM CDTF0Castro, TX0.120
May 68:35 PM CDTF0Sherman, TX0.710

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.