EF0 tornado, Moses, New Mexico, May 30, 2021

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.

Rating

EF0

Date

May 30, 2021

Touchdown

4:10 PM MDT (22:10 UTC)

Lifted

4:11 PM MDT (22:11 UTC)

On the ground

1 minutes

Path length

0.4 miles (0.7 km)

Path width

50 yards (46 m)

Deaths

0

Injuries

0

County

Union County

Touchdown point

36.740, -103.110

Lift-off point

36.741, -103.102

Record number

2105301610-01

1 damage points were recorded along this path by NWS ABQ, in the Damage Assessment Toolkit the survey teams carry.

• NWS Employee chasing storm coming out of CO seen in distance.

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

With a low pressure system centered to the southwest of New Mexico and an anomalously moist air mass being transported into the state, the stage was set for another round of showers and thunderstorms across the area on May 30, 2021. Thunderstorm activity formed by the late morning hours and intensified as the day progressed. Several reports of large hail was received across central and eastern New Mexico, and a few tornadoes and landspouts were observed across the plains. The anomalously moist air mass allowed for heavy rain to fall as well, especially across south central and southeast New Mexico which received rainfall totals of three to five inches in a very short period of time. This led to flash flooding in Lincoln and Chaves counties in which several water rescues had to be performed. Widespread damage was reported as well with multiple businesses, homes, and vehicles being inundated with flood waters. Tragically, one individual in southern Lincoln County drowned while trying to cross a flooded roadway in their vehicle.

A thunderstorm near Moses produced a brief tornado as it tracked eastward. No damage was reported.

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

39 minutes of warning. NWS ABQ issued a tornado warning for this county at 21:31 UTC, 39 minutes before the tornado touched down, in force until 22:15 UTC.

The county was under a severe thunderstorm watch, issued at 17:41 UTC and running to 00:00 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 Slight Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 19:43 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.

Clayton (CAO), 33 km from the path, in the two hours either side.

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

The Amarillo radar (KAMA), 209 km away, was scanning. The volume nearest the touchdown began at 22:10 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 2021 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.