Thunderstorms developed across eastern Riverside county during the morning hours on July 31st. The atmosphere was very moist and unstable, and the presence of a weather disturbance in the area allowed the storms to produce locally heavy rainfall with rain rates in excess of 2 inches per hour. The excessive rains led to episodes of flash flooding, affecting communities such as Desert Center, Mecca and Eagle Mountain. The primary impact of the flash flooding involved road closures.

Flash Flood in RIVERSIDE, CALIFORNIA
From 31-JUL-12 10:15:00 to 31-JUL-12 13:15:00 (PST-8)
Location: DESERT CENTER ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Intense thunderstorms developed across much of eastern Riverside county during the morning hours on July 31st. The airmass was very moist and unstable, and the presence of a weather disturbance resulted in excessive rainfall with rain rates in excess of 2 inches per hour. The heavy rain led to the issuance of a Flash Flood Warning at 1015 am. According to California Department of Highways, or Cal Trans, at 1230 pm highway 177 was closed due to flooding, in the area about 13 miles northeast of Desert Center.

Flash Flood in RIVERSIDE, CALIFORNIA
From 31-JUL-12 10:15:00 to 31-JUL-12 13:15:00 (PST-8)
Location: MORTMAR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Intense thunderstorms developed across much of eastern Riverside county during the morning hours on July 31st. The airmass was very moist and unstable, and the presence of a weather disturbance led to excessive rainfall with rain rates in excess of 2 inches per hour. The heavy rain led to episodes of flash flooding, and a Flash Flood Warning was issued for most of eastern Riverside county at 1015 am. According to the California Department of Highways, or Cal Trans, at 1230 pm flash flooding was observed in Box Canyon, and Box Canyon road was closed.

Flash Flood in RIVERSIDE, CALIFORNIA
From 31-JUL-12 10:10:00 to 31-JUL-12 13:15:00 (PST-8)
Location: DESERT CENTER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Intense thunderstorms developed across much of eastern Riverside county during the morning hours on July 31st. The airmass was very moist and unstable, and the presence of a weather disturbance led to very heavy rainfall. The excessive rain led to episodes of flash flooding, including the area around Desert Center, and a Flash Flood Warning was issued at 1015 am. According to a trained weather spotter in Desert Center, at 1027 am, flash flooding caused Kaiser Road to be underwater, with flood waters threatening Interstate 10 in the area.

Flash Flood in RIVERSIDE, CALIFORNIA
From 31-JUL-12 11:30:00 to 31-JUL-12 13:30:00 (PST-8)
Location: EAGLE MTN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Intense thunderstorms developed across much of eastern Riverside county during the morning hours on July 31st. The airmass was very moist and unstable, and the presence of a weather disturance led to excessive rainfall with rain rates in excess of 2 inches per hour. The heavy rain led to episodes of flash flooding over northern portions of the county, and a Flash Flood Warning was issued at 1015 am. According to the California Department of Highways, or Cal Trans, flash flooding caused the road from Twenty Nine Palms eastwward to US Highway 95 to be flooded. The road, highway 62, was closed along the entire length, according to Cal Trans.