A strong cold front moved into eastern New Mexico early May 9, 2021 and replenished low-level moisture across the area. A marginally unstable airmass was also in place across the plains which allowed for a severe weather threat that afternoon and evening. Thunderstorms first developed across the Sangre de Cristo Mountains and then tracked eastward to southeastward onto lower elevations where they organized into linear segments. The strongest storms of the day were located across east central New Mexico. A late evening severe thunderstorm near Grady produced a microburst with estimated 70 to 90 mph winds which caused significant damage to trees, power lines, and roofs. Another storm near Logan produced one-inch hail.

Hail in QUAY, NEW MEXICO
From 09-MAY-21 21:55:00 to 09-MAY-21 22:05:00 (MST-7)
Location: LOGAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

One inch hail was reported with a severe thunderstorm located near Logan.

Thunderstorm Wind in QUAY, NEW MEXICO
From 09-MAY-21 20:19:00 to 09-MAY-21 20:25:00 (MST-7)
Location: SAN JON
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A microburst with estimated 70 to 90 mph winds from a severe thunderstorm caused significant damage in and around Grady as well as in far southern Quay County. In southern Quay County, a National Weather Service damage survey team estimated 70 mph winds associated with the microburst destroyed a carport. The carport along with a downed TV antenna was carried 200 yards away from their original location. A storage shed that was attached to the carport was also tipped over. Additionally, several large trees limbs were downed. Damages are estimated for the loss and damage to the carport, TV antenna, storage shed, and tree limbs.

Thunderstorm Wind in CURRY, NEW MEXICO
From 09-MAY-21 20:20:00 to 09-MAY-21 20:26:00 (MST-7)
Location: GRADY
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A microburst with estimated 70 to 90 mph winds from a severe thunderstorm caused significant damage in and around Grady as well as in far southern Quay County. In Grady, a National Weather Service damage survey team estimated 70 mph winds associated with the microburst caused roof damage with metal roofs pealed back from their structures. The microburst also removed a porch cover that was attached to a house. Additionally, large trees were unrooted, and large tree limbs were downed. Damages are estimated for the roof damage as well as the tree damage.

Thunderstorm Wind in CURRY, NEW MEXICO
From 09-MAY-21 20:16:00 to 09-MAY-21 20:23:00 (MST-7)
Location: GRADY
Magnitude: 78.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A microburst with estimated 70 to 90 mph winds from a severe thunderstorm caused significant damage in and around Grady as well as in far southern Quay County. North-northwest of Grady, a National Weather Service damage survey team found 17 downed electrical transmission line poles due to the microburst. A couple of the poles were snapped at the base while some were snapped halfway up the pole. Damages are estimated for the destruction of the transmission pole lines.

Thunderstorm Wind in CURRY, NEW MEXICO
From 09-MAY-21 20:20:00 to 09-MAY-21 20:25:00 (MST-7)
Location: GRADY
Magnitude: 73.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A school weather station in Grady measured a peak wind gust of 84 mph from a thunderstorm microburst.