A more substantial push of monsoon moisture helped trigger widespread thunderstorms across the Mojave Desert and southern Great Basin. Many storms produced severe weather and flash flooding.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 11-JUL-18 14:15:00 to 11-JUL-18 15:30:00 (PST-8)
Location: BANNOCK
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

Washes overflowed and flooded roads west northwest of Needles.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 11-JUL-18 14:57:00 to 11-JUL-18 16:30:00 (PST-8)
Location: FENNER
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Goffs Road was flooded between I-40 and Highway 95.

Flash Flood in INYO, CALIFORNIA
From 11-JUL-18 14:30:00 to 11-JUL-18 16:00:00 (PST-8)
Location: RYAN
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Flood waters came down from Dante's View and crossed Badwater Road.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 11-JUL-18 16:30:00 to 11-JUL-18 18:30:00 (PST-8)
Location: TWENTY NINE PALMS
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: County Official

Major flooding in Twentynine Palms closed Adobe Road between Civic Center Drive and Gorgonio, and also closed the gates at Ocotillo and Split Rock.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 11-JUL-18 17:33:00 to 11-JUL-18 19:00:00 (PST-8)
Location: (NXP)MCAF TWENTYNINE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Cars were stuck in deep flooding on Highway 62 at mile marker 42.

Flash Flood in INYO, CALIFORNIA
From 11-JUL-18 18:43:00 to 11-JUL-18 20:00:00 (PST-8)
Location: DEEP SPGS
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Eureka Valley Road was flooded.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 12-JUL-18 12:06:00 to 12-JUL-18 13:30:00 (PST-8)
Location: HAVASU LAKE
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Water flowed over a road at Havasu Landing on the Chemeheuvi reservation.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 12-JUL-18 13:13:00 to 12-JUL-18 16:00:00 (PST-8)
Location: KLINEFELTER
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Highway 95 was closed just north of I-40 due to mud, rocks, and trees covering the road.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 12-JUL-18 14:34:00 to 12-JUL-18 17:00:00 (PST-8)
Location: GOFFS
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flash flooding closed Goffs Road.

Flash Flood in INYO, CALIFORNIA
From 12-JUL-18 15:45:00 to 12-JUL-18 17:30:00 (PST-8)
Location: DEATH VLY JCT
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: County Official

The intersection of Highways 127 and 190 was flooded and closed.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 13-JUL-18 11:45:00 to 13-JUL-18 13:30:00 (PST-8)
Location: DESERT CITY
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The intersection of Nipton Road and Ivanpah Road was washed out.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 13-JUL-18 13:14:00 to 13-JUL-18 15:00:00 (PST-8)
Location: VALLEY WELLS STATION
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Cima Road was covered in mud near I-15, and one vehicle was stuck in flood waters.

Thunderstorm Wind in SAN BERNARDINO, CALIFORNIA
From 13-JUL-18 13:39:00 to 13-JUL-18 13:39:00 (PST-8)
Location: ARROWHEAD JCT
Magnitude: 43.00 EG
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorm winds derailed 15 train cars, blocking Highway 95.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 13-JUL-18 14:27:00 to 13-JUL-18 16:30:00 (PST-8)
Location: BANNOCK
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Department of Highways

Highway 95 was covered with mud and closed.

Flash Flood in INYO, CALIFORNIA
From 14-JUL-18 15:58:00 to 14-JUL-18 17:30:00 (PST-8)
Location: STOVEPIPE WELLS
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Racetrack Valley Road was flooded.

Flash Flood in INYO, CALIFORNIA
From 12-JUL-18 17:00:00 to 12-JUL-18 19:00:00 (PST-8)
Location: DEEP SPGS
Flood cause: Heavy Rain
Property damage: 125.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several OHV roads at Ancient Bristlecone Pine Forest were flooded and had sinkholes, and a stretch of Highway 168 was closed.