A potent upper level low pressure system over Arizona continued inching closer to New Mexico through the 8th. Strong upper level forcing spreading over the region along with high temperatures in the 90s led to abundant instability across eastern New Mexico. Discrete thunderstorms began developing over the eastern plains shortly after 3 pm then spread north across the area. These storms merged into a large, linear cluster stretching from the Fort Sumner area northward across Interstate 40 into Harding County. Several reports of ping pong ball size hail were received from the Fort Sumner area. This area of storms then spawned the first tornado of the 2017 severe weather season to the north of Roy just after 6 pm. The second cluster of thunderstorms developed over Chaves County and produced another round of large hail. Golf ball size hail on the west side of Roswell just after 8 pm. Several rounds of heavy rainfall that trained over the same area of southeastern Guadalupe and northeastern De Baca counties generated torrential rainfall amounts within the Alamogordo Creek drainage. Video of flash flooding was captured along the creek near U.S. Highway 84 north of Fort Sumner.

Hail in DE BACA, NEW MEXICO
From 08-MAY-17 15:32:00 to 08-MAY-17 15:40:00 (MST-7)
Location: FT SUMNER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

First round of hail with stones up to the size of quarters.

Hail in DE BACA, NEW MEXICO
From 08-MAY-17 15:59:00 to 08-MAY-17 16:08:00 (MST-7)
Location: FT SUMNER
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Second round of large hail with stones up to the size of ping pong balls.

Hail in DE BACA, NEW MEXICO
From 08-MAY-17 15:35:00 to 08-MAY-17 15:40:00 (MST-7)
Location: TAIBAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail.

Hail in QUAY, NEW MEXICO
From 08-MAY-17 16:15:00 to 08-MAY-17 16:28:00 (MST-7)
Location: HOUSE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail up to the size of golf balls west of House.

Hail in GUADALUPE, NEW MEXICO
From 08-MAY-17 19:03:00 to 08-MAY-17 19:10:00 (MST-7)
Location: PUERTO DE LUNA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail up to the size of quarters.

Hail in CHAVES, NEW MEXICO
From 08-MAY-17 19:12:00 to 08-MAY-17 19:14:00 (MST-7)
Location: ROSWELL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Nickel to quarter size hail on the west side of Roswell.

Hail in HARDING, NEW MEXICO
From 08-MAY-17 16:25:00 to 08-MAY-17 16:32:00 (MST-7)
Location: ROY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail up to the size of golf balls in Roy.

Hail in SAN MIGUEL, NEW MEXICO
From 08-MAY-17 16:42:00 to 08-MAY-17 16:45:00 (MST-7)
Location: SANCHEZ
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel to quarter size hail 10 miles east-southeast of Maes.

Hail in DE BACA, NEW MEXICO
From 08-MAY-17 15:18:00 to 08-MAY-17 15:40:00 (MST-7)
Location: FT SUMNER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple rounds of hail with the largest stones up to quarter size a couple different times over the 20 minute period.

Flash Flood in GUADALUPE, NEW MEXICO
From 08-MAY-17 21:00:00 to 09-MAY-17 01:00:00 (MST-7)
Location: PUERTO DE LUNA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Radar estimated 4 to 8 inches of rainfall over a large area of the Alamogordo Creek drainage. The creek nearly reached the base of the U.S. Highway 84 bridge near Sumner Lake. Several low water crossings northeast of this area along the creek washed out.

Hail in GUADALUPE, NEW MEXICO
From 08-MAY-17 21:09:00 to 08-MAY-17 21:14:00 (MST-7)
Location: NEWKIRK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny size hail north of Newkirk.

Hail in GUADALUPE, NEW MEXICO
From 08-MAY-17 21:12:00 to 08-MAY-17 21:15:00 (MST-7)
Location: NEWKIRK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail north of Newkirk.

Hail in DE BACA, NEW MEXICO
From 08-MAY-17 15:06:00 to 08-MAY-17 15:09:00 (MST-7)
Location: FT SUMNER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail.

Tornado in HARDING, NEW MEXICO
From 08-MAY-17 17:17:00 to 08-MAY-17 17:20:00 (MST-7)
Location: ROY
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Brief tornado touchdown six miles north-northeast of Roy.

Hail in DE BACA, NEW MEXICO
From 08-MAY-17 15:44:00 to 08-MAY-17 15:50:00 (MST-7)
Location: FT SUMNER
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Hail up to the size of ping pong balls reported in Fort Sumner.

Hail in HARDING, NEW MEXICO
From 08-MAY-17 16:25:00 to 08-MAY-17 16:30:00 (MST-7)
Location: ROY
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail up to the size of half dollars near Roy.

Funnel Cloud in QUAY, NEW MEXICO
From 08-MAY-17 19:30:00 to 08-MAY-17 19:50:00 (MST-7)
Location: JORDAN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Funnel cloud southwest of Quay moved north/northwest toward the I-40 corridor.