An upper level low pressure system developed over the Great Basin during the first week of October and delivered another round of widespread showers and thunderstorms to New Mexico. This weather pattern was similar to the pattern that impacted the area with severe storms and flooding at the end of September. Saturated soils over much of central and eastern New Mexico from late September exacerbated the flash flood potential. The first round of heavy rainfall impacted eastern New Mexico on the 3rd when four to six inches of rain fell within the Pecos Valley. Low level moisture surged westward on the 4th and triggered more showers and storms within central New Mexico through the 5th. Flash flooding and severe storms developed in the Rio Grande Valley. Numerous roads were washed out within Santa Fe County. Flash flooding, hail, and high winds were reported again around Belen. Meanwhile, eastern New Mexico continued to experience deluges of rainfall with flash flooding reported around Logan, Fort Sumner, Portales, and Elk. Three day total rainfall amounts of 3 to 8 inches were reported across eastern New Mexico with another 1 to 3 inches around the Rio Grande Valley.

Flash Flood in CIBOLA, NEW MEXICO
From 04-OCT-17 15:30:00 to 04-OCT-17 16:30:00 (MST-7)
Location: SAN FIDEL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Flash flooding along nearby arroyo approaching home. Residents trapped in home. No damage reported.

Flash Flood in DE BACA, NEW MEXICO
From 03-OCT-17 21:00:00 to 03-OCT-17 23:30:00 (MST-7)
Location: YESO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Four to six inches of rainfall produced flash flooding in the Alamogordo Creek and Salado Creek drainages. Numerous low water crossings flooded.

Thunderstorm Wind in VALENCIA, NEW MEXICO
From 04-OCT-17 17:20:00 to 04-OCT-17 17:22:00 (MST-7)
Location: TOME
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Peak wind gust up to 62 mph downed small tree limbs in Tome.

Hail in SAN MIGUEL, NEW MEXICO
From 04-OCT-17 18:45:00 to 04-OCT-17 18:50:00 (MST-7)
Location: SAN JOSE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail up to the size of pennies lasted up to 5 minutes in San Jose.

Flash Flood in CHAVES, NEW MEXICO
From 05-OCT-17 06:00:00 to 05-OCT-17 12:00:00 (MST-7)
Location: DUNKEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Torrential rainfall for several hours over the Sacramento Mountains produced a flash flood wave on the Rio Penasco. The river rose nearly 10 feet in one hour then crested at 17.46 feet several hours later. Nearby roads were inundated with flood waters along state highway 24 and U.S. Highway 82.

Flash Flood in QUAY, NEW MEXICO
From 05-OCT-17 16:11:00 to 05-OCT-17 19:00:00 (MST-7)
Location: LOGAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Roads flooded and closed southwest of Logan. Several vehicles stranded in flood waters.

Flash Flood in QUAY, NEW MEXICO
From 05-OCT-17 16:30:00 to 05-OCT-17 19:00:00 (MST-7)
Location: LOGAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Widespread street flooding in Logan. Water three to four inches deep running over state road 540 at eight different locations. No homes flooded. Two vehicles disabled.

Thunderstorm Wind in LINCOLN, NEW MEXICO
From 05-OCT-17 18:30:00 to 05-OCT-17 18:31:00 (MST-7)
Location: OSCURO
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Peak wind gust to 59 mph at WSMR Shist site.

Flash Flood in DE BACA, NEW MEXICO
From 05-OCT-17 21:00:00 to 05-OCT-17 23:00:00 (MST-7)
Location: TAIBAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash flooding over several roadways around De Baca County, including state road 294 at Taiban Creek.

Flash Flood in ROOSEVELT, NEW MEXICO
From 05-OCT-17 22:30:00 to 06-OCT-17 00:00:00 (MST-7)
Location: PORTALES
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

State road 88 closed at Portales due to flooding.

Flash Flood in DE BACA, NEW MEXICO
From 03-OCT-17 23:00:00 to 04-OCT-17 01:00:00 (MST-7)
Location: FT SUMNER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Water over U.S. Highway 84 around Fort Sumner. Flooding along creeks and arroyos leading into Pecos Basin.

Flash Flood in QUAY, NEW MEXICO
From 04-OCT-17 03:00:00 to 04-OCT-17 06:00:00 (MST-7)
Location: SAN JON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Rock slides, mud, and debris covering portions of state highway 469 between San Jon and Grady. Road was closed for several hours after causative event.

Flash Flood in SANTA FE, NEW MEXICO
From 04-OCT-17 17:15:00 to 04-OCT-17 18:00:00 (MST-7)
Location: SAN ILDEFONSO PUEBLO
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

County road 84 washed out in El Rancho.

Hail in SAN MIGUEL, NEW MEXICO
From 04-OCT-17 19:00:00 to 04-OCT-17 19:03:00 (MST-7)
Location: SAN JOSE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Very heavy rainfall with penny to nickel size hail near Ribera.

Flash Flood in SANTA FE, NEW MEXICO
From 04-OCT-17 18:00:00 to 05-OCT-17 00:00:00 (MST-7)
Location: GALISTEO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Large rocks and boulders washed over county road 42 near Galisteo. Road closed. Galisteo Creek below Galisteo Dam crested at 10.84 feet, the second highest crest on record since 1971.

Flash Flood in VALENCIA, NEW MEXICO
From 05-OCT-17 15:00:00 to 05-OCT-17 18:00:00 (MST-7)
Location: BELEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roadways beneath Interstate 25 flooded out in Belen.

Flash Flood in DE BACA, NEW MEXICO
From 05-OCT-17 19:30:00 to 05-OCT-17 21:00:00 (MST-7)
Location: FT SUMNER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several roads in Fort Sumner completely flooded. Railroad underpass over U.S. Highway 84 closed again due to flooding. Several low water crossings were still flooded the following morning.