The first significant surge of monsoon moisture of the 2018 season generated numerous showers and thunderstorms with locally heavy rainfall across New Mexico. The first thunderstorms of the day developed over the northeast and east central plains followed by scattered activity around the higher terrain of central and western New Mexico. Storm motions were slow to the west with localized areas of heavy rainfall. A severe thunderstorm impacted the area around Sumner Lake where winds gusted up to 60 mph with nickel size hail and torrential rainfall. Heavy rainfall along NM-38 west of Red River forced a mud slide over the highway. Moderate rainfall over the Ute Park burn scar also generated a mud slide and the closure of U.S. Highway 64. Flooding also occurred around Santa Fe where roads were closed around the north side of town. A torrential downpour along U.S. Highway 550 near Rio Rancho produced flash flooding and the closure of several intersections. A levee breach in Belen near Hansen Road flooded a large section of town near the Belen High School. Shelters were open for those affected by flooding in Belen.

Thunderstorm Wind in DE BACA, NEW MEXICO
From 05-JUL-18 12:15:00 to 05-JUL-18 12:20:00 (MST-7)
Location: FT SUMNER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Sumner Lake reported peak wind gusts between 50 and 60 mph.

Flash Flood in TAOS, NEW MEXICO
From 05-JUL-18 13:30:00 to 05-JUL-18 14:00:00 (MST-7)
Location: RED RIVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

NM-38 closed due to mud slide over the roadway.

Flash Flood in COLFAX, NEW MEXICO
From 05-JUL-18 16:15:00 to 05-JUL-18 17:45:00 (MST-7)
Location: UTE PARK
Flood cause: Heavy Rain / Burn Area
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

U.S. Highway 64 closed due to mud slide over the roadway. A motorcyclist crashed after hitting a muddy area at mile marker 303. Injuries were very minor and he continued traveling after refusing treatment.

Flash Flood in SANTA FE, NEW MEXICO
From 05-JUL-18 16:30:00 to 05-JUL-18 17:30:00 (MST-7)
Location: SANTA FE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flash flooding in the area of Agua Fria and Upper Hills. Roads closed.

Flash Flood in VALENCIA, NEW MEXICO
From 05-JUL-18 17:00:00 to 05-JUL-18 18:30:00 (MST-7)
Location: BELEN
Flood cause: Dam / Levee Break
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Heavy rainfall in Belen led to a levee failure along Hansen Road. Several homes and vehicles were flooded. Damage amounts are estimated.

Thunderstorm Wind in VALENCIA, NEW MEXICO
From 05-JUL-18 16:30:00 to 05-JUL-18 16:35:00 (MST-7)
Location: BELEN
Magnitude: 52.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

At least two large trees were downed in Belen from high winds, small hail, and torrential rainfall. One of these trees crushed a metal fence. Damage amount is a rough estimate.

Hail in DE BACA, NEW MEXICO
From 05-JUL-18 12:18:00 to 05-JUL-18 12:23:00 (MST-7)
Location: FT SUMNER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel to quarter size hail at Sumner Lake.

Flash Flood in SANDOVAL, NEW MEXICO
From 05-JUL-18 17:20:00 to 05-JUL-18 18:00:00 (MST-7)
Location: BERNALILLO
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Flash flooding occurred along U.S. Highway 550 between NM-528, Paseo del Volcan, and Enchanted Hills. Roads were closed in the area with a couple vehicles inundated by flood waters. One motorists was rescued from their vehicle at Paseo del Volcan in Enchanted Hills. Mud and rocks washed over several roads. Water retention berms were also damaged. Damage amounts are a rough estimate for water impacting vehicles.