A strong push of monsoon moisture fueled thunderstorms over the Mojave Desert and southern Great Basin for several days, peaking on the 25th. Many storms produced flash flooding, and isolated severe weather also occurred.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 25-AUG-13 16:45:00 to 25-AUG-13 19:00:00 (PST-8)
Location: CAMP IRWIN
Flood cause: Heavy Rain
Property damage: 40.00M
Crop damage: 0.00K
Reported by: Other Federal Agency

Flash flooding at the National Training Center in Fort Irwin damaged over 160 buildings, with the elementary school suffering the most extensive damage.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 22-AUG-13 15:13:00 to 22-AUG-13 16:30:00 (PST-8)
Location: (NXP)MCAF TWENTYNINE
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Water and debris flowed over Highway 62.

Dust Storm in WESTERN MOJAVE DESERT, CALIFORNIA
From 24-AUG-13 13:00:00 to 24-AUG-13 15:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Dust storm conditions along Interstate 40 east of Fort Cady Road contributed to an eight vehicle crash which killed two people and injured five (indirect).

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 25-AUG-13 11:09:00 to 25-AUG-13 13:00:00 (PST-8)
Location: KLINEFELTER
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Highway 95 was damaged and closed by flash flooding. One woman died when her vehicle was swept away by the flood.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 25-AUG-13 12:49:00 to 25-AUG-13 18:00:00 (PST-8)
Location: NEEDLES
Flood cause: Heavy Rain
Property damage: 1.50M
Crop damage: 0.00K
Reported by: Law Enforcement

Interstate 40 was closed at Highway 95, as high water and thick mud stranded several vehicles. A 500 pound propane tank was washed off its foundation. Several stretches of BNSF track totaling about 2.6 miles in length were damaged, and a bridge in the Sacramento Wash was undermined, suspending freight line and Amtrak service.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 25-AUG-13 14:26:00 to 25-AUG-13 16:00:00 (PST-8)
Location: ESSEX
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Mud covered Essex Road, with several cars stuck in the mud.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 25-AUG-13 14:45:00 to 25-AUG-13 16:00:00 (PST-8)
Location: (NXP)MCAF TWENTYNINE
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Water and debris washed over Highway 62 from seven miles east of Twentynine Palms to Shelton Road.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 25-AUG-13 17:32:00 to 25-AUG-13 18:30:00 (PST-8)
Location: YUCCA VLY
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Water and mud flowed across Highway 62.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 25-AUG-13 18:13:00 to 25-AUG-13 19:30:00 (PST-8)
Location: (NXP)MCAF TWENTYNINE
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Amboy Road was flooded and impassable.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 25-AUG-13 18:32:00 to 25-AUG-13 19:30:00 (PST-8)
Location: BAKER
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Highway 127 washed out just north of Powerline Road.