A huge push of monsoon moisture from Hurricane Dolores fueled a major outbreak of flash flooding and severe weather in the Mojave Desert and southern Great Basin.

Flash Flood in INYO, CALIFORNIA
From 21-JUL-15 14:58:00 to 21-JUL-15 17:00:00 (PST-8)
Location: BIG PINE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Highway 168 was closed at Westgard Pass due to flooding and lots of debris in the road.

Lightning in SAN BERNARDINO, CALIFORNIA
From 17-JUL-15 14:30:00 to 17-JUL-15 14:30:00 (PST-8)
Location: (EED)NEEDLES ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A man on a jet ski was indirectly struck by lightning at the Pirates Cove Resort.

Thunderstorm Wind in SAN BERNARDINO, CALIFORNIA
From 17-JUL-15 17:05:00 to 17-JUL-15 18:15:00 (PST-8)
Location: (EED)NEEDLES ARPT
Magnitude: 56.00 MG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A semi truck was blown over on I-40, and several power poles and lines were also blown down and blocked I-40 in both directions. Several palm trees were blown down, and there was minor roof damage to a business.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 17-JUL-15 18:37:00 to 17-JUL-15 20:00:00 (PST-8)
Location: BANNOCK
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A swift water rescue occurred on Highway 95 five miles south of the CA/NV state line. The highway was closed from I-40 to the state line.

Dust Storm in Morongo Basin, CALIFORNIA
From 17-JUL-15 19:10:00 to 17-JUL-15 20:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Visibility was below 1/4 mile in Joshua Tree.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 17-JUL-15 22:59:00 to 18-JUL-15 00:30:00 (PST-8)
Location: JAVA
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

River Road was underwater with several cars stuck. Two underpasses in Needles also flooded.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 18-JUL-15 11:03:00 to 18-JUL-15 12:30:00 (PST-8)
Location: BUSH
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Three feet of water flowed over Highway 62.

Thunderstorm Wind in SAN BERNARDINO, CALIFORNIA
From 18-JUL-15 12:10:00 to 18-JUL-15 12:10:00 (PST-8)
Location: (EED)NEEDLES ARPT
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Dust Storm in Death Valley National Park, CALIFORNIA
From 18-JUL-15 12:15:00 to 18-JUL-15 13:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Near zero visibility was observed in Death Valley National Park via a web cam.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 18-JUL-15 13:04:00 to 18-JUL-15 14:00:00 (PST-8)
Location: VIDAL JCT ARPT
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Highway 62 was flooded near mile marker 119.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 18-JUL-15 15:15:00 to 18-JUL-15 16:30:00 (PST-8)
Location: NEEDLES
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Water and debris covered Highway 95.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 19-JUL-15 14:54:00 to 19-JUL-15 16:00:00 (PST-8)
Location: JOSHUA TREE ARPT
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Swift water rescues occurred at Sunfair Road and one mile east of White Feather Road. Boulders were on Highway 62 from Mile Square Road to Mt. Lassen Lane.

Tornado in SAN BERNARDINO, CALIFORNIA
From 19-JUL-15 16:00:00 to 19-JUL-15 16:01:00 (PST-8)
Location: LANDERS
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Two landspouts were photographed in open desert just north of Landers. No damage occurred.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 19-JUL-15 17:40:00 to 19-JUL-15 19:00:00 (PST-8)
Location: DESERT CITY
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Nipton Road was washed out.