EF2 tornado, Cameo to Clovis, New Mexico, March 23, 2007

1. EF065 to 85 mph

   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 mphthis tornado

   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.

Rating

EF2

Date

March 23, 2007

Touchdown

7:30 PM MDT (01:30 UTC)

Lifted

8:06 PM MDT (02:06 UTC)

On the ground

36 minutes

Path length

12.4 miles (20.0 km)

Path width

350 yards (320 m)

Deaths

2

Injuries

33

Property damage

$19 million

Crop damage

$250,000

Counties

Roosevelt and Curry counties

Touchdown point

34.240, -103.165

Lift-off point

34.420, -103.190

Record number

0703231930-01

An unusually early and intense outbreak of severe storms with large hail and tornadoes occurred across east central and southeast New Mexico during the afternoon and evening of the 23rd. The average date for isolated first reports of damaging hail over the past 20 years has been March 24th with the location typically confined to far southeast New Mexico. The March 23rd 2007 episode produced a number of large hail events from Roswell to Tucumcari and peaked with multiple tornadoes from near Tatum north to Clovis and northeast of Tucumcari. A tornado at Clovis resulted in the death of two elderly citizens, the first tornado fatalities in New Mexico since October of 1974. The episode was characterized by a slow moving upper level low that produced strong speed shear but nearly uniform southerly directional flow aloft across the eastern and southeastern sections of the state. Storms with large hail developed first during early and mid afternoon from near Roswell north to Tucumcari. Towards late afternoon and early evening as storms migrated north northeast they encountered an increasing but shallow easterly surface flow that enhanced low level shear resulting in brief but shallow tornadoes. Multiple small but elevated vortices were observed circulating around well defined wall clouds with occasional spin downs into brief tornadoes.

Tornado with estimated peak winds of near 120 mph severely damaged the Portales City water well facility on State Road 202 about 5 miles east of Highway 70. The tornado moved north northwest destroying a new dairy before continuing northwest into Curry County. No injuries reported but storm debris briefly trapped a dairy employee. About 190 dairy cows either killed by the event or else sent to immediate slaughter due to injuries. Average width approximately 200 yards.

A tornado that developed in Roosevelt County continued north northwest into Curry County for about 3.5 miles then tracked north northeast an additional 4.6 miles into southern and east central sections of Clovis. Intensity of the tornado appeared to wane from EF2 120 mph in Roosevelt County to EF1 100 mph as it moved north into Curry County along Highway 70 where damage was limited to power lines and farm irrigation equipment. Intensity increased again to EF2 level 125 mph for a segment extending from about 4 miles south of Clovis northward into southeast Clovis which sustained the heaviest and most consistent damage as indicated by structural damage and downed power poles. The tornado appeared to wane again as it move north over Highway 60/84 just east of the intersection with Highway 70. The tornado track became intermittent north of Highway 60/84 with winds likely less than 85 mph before a final one half mile track of heavier damage and EF2 level winds of 120-125 mph. Average width was estimated at 200 yards. About 500 homes and other facilities sustained at least some damage ranging from complete destruction of mobile homes in southeast Clovis and wall collapse at several businesses along Highway 60/84 to the loss of roof shingles and roof top air conditioning units. Thirty five people suffered treatment injuries including five that required hospitalization. Two elderly citizens died later from injuries sustained during the event making these the first tornado fatalities in New Mexico since October of 1974.

The deaths

2 direct deaths are recorded for this tornado, each with what Storm Data knows of it.

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

35 minutes of warning. NWS ABQ issued a tornado warning for this county at 00:55 UTC, 35 minutes before the tornado touched down, in force until 01:45 UTC.

The county was under a tornado watch, issued at 20:20 UTC and running to 04:00 UTC.

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 Storm Prediction Center had this point in a Moderate Risk, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 00:53 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 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.

Clovis Muni (CVN), 14 km from the path, in the two hours either side.

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

The Cannon AFB radar (KFDX), 53 km away, was scanning. The volume nearest the touchdown began at 01:29 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.

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

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

The live radar over the trackEvery 2007 tornado in New MexicoEvery tornado in New Mexico since 1950Warnings in force in New Mexico nowThe forecast where you are

17 more were confirmed in the United States that day.

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.

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.