Tornadoes · United States · New Mexico · 2015
EF0 tornado, Roswell, New Mexico, May 5, 2015
This EF0 tornado ran 0.1 miles across Chaves County on May 5, 2015, touching down at 12:55 PM MDT and reaching 15 yards wide. It killed nobody, and did $20,000 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.
EF065 to 85 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mph
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
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.
EF4166 to 200 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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 5, 2015
- Touchdown
- 12:55 PM MDT (18:55 UTC)
- Lifted
- 12:56 PM MDT (18:56 UTC)
- On the ground
- 1 minutes
- Path length
- 0.1 miles (0.2 km)
- Path width
- 15 yards (14 m)
- Deaths
- 0
- Injuries
- 0
- Property damage
- $20,000
- County
- Chaves County
- Touchdown point
- 33.371, -104.571
- Lift-off point
- 33.373, -104.571
- Record number
- 1505051255-01
What the Weather Service recorded
An upper level low pressure system moved out of central Arizona and into northern Colorado during the day on the 5th ushering colder air over New Mexico. Residual moisture and a weak dryline along the eastern plains resulted in strong to severe thunderstorms across the southeast and far eastern plains. These storms produced strong winds, pea to penny size hail, and brief periods of heavy rain. The combination of weak shear and cold air aloft caused cold-air funnel clouds to form in association with some of the stronger storms, notably near Roswell. It was in Roswell that reports indicated multiple funnel clouds developed over different parts of the city. One funnel cloud briefly touched down on the southwest side of the city, damaging two outbuildings during it's short-lived life as a tornado. No injuries or fatalities were reported during this event.
Trained spotters and the public reported multiple cold-air funnels developing over the Roswell area. Reports indicated that one cold air funnel cloud briefly made contact with the ground and damaged the roof and walls of two outbuildings. No injuries or fatalities were reported with this tornado.
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) | Expired | Product | Office |
|---|---|---|---|
| 18:30 UTC | 19:00 UTC | Severe Thunderstorm Warning | ABQ |
| 18:47 UTC | 19:15 UTC | Severe Thunderstorm Warning | ABQ |
| 19:41 UTC | 20:30 UTC | Severe Thunderstorm Warning | ABQ |
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 16:11 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.
Santa Teresa, NM (KEPZ), 12:00Z
6.9 hours before the tornado, 260 km from the path. May 5, 2015.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- -90 J/kg
- Surface CAPE
- 0 J/kg
- Mixed-layer LCL
- 1899 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -58 m²/s²
- 0-3 km storm-relative helicity
- -28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 6.8 K/km
Santa Teresa, NM (KEPZ), 00:00Z
5.1 hours after it, 260 km from the path. May 6, 2015.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- -79359 J/kg
- Surface CAPE
- 5 J/kg
- Mixed-layer LCL
- 2940 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 10.1 K/km
The radar
The Holloman AFB radar (KHDX), 148 km away, was scanning. The volume nearest the touchdown began at 18:57 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) | Report | Where | County | Remark |
|---|---|---|---|---|
| 18:55 UTC | TORNADO | 5 Sw Roswell | Chaves, NM | TIME ESTIMATED BASED ON RADAR. TORNADO DESTROYS SHED AND WRAPS GARAGE DOOR AROUND POWER POLE. |
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 New MexicoEvery tornado in New Mexico since 1950Warnings in force in New Mexico nowThe forecast where you are
The other tornadoes of May 5, 2015
5 more were confirmed in the United States that day.
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.