Fast winds and some rain pummeled the Valley, parts of the Coachella area, and the Mountain Fire Burn locale before dawn Sunday, causing flash flooding in the mountains and resulted in the closure of a Palm Springs street. Palm Springs police reported that runoff down Palm Canyon Wash led to the closure of Araby Road at 6 a.m. south of East Palm Canyon Road, Sgt. Kyle Stjerne said.
The National Weather Service reported .11 inches in precipitation, winds reached 15 miles per hour, and visibility was reduced to 3 miles around 3 a.m. Temperatures dipped as low as 84 degrees. No major power outages were reported
Slow moving thunderstorms producing heavy rainfall will likely result in flash flooding in the extreme lower part of the Coachella Valley near the Salton Sea, the NWS reported.
The excessive runoff from heavy rainfall will cause flooding of small creeks and streams, according to the NWS.
About 1.5 inches of rain fell overnight at the top of the Palm Springs Aerial tramway, and thunder dancing around the Coachella Valley was the talk of Twitter in the wee hours.
Near the Salton Sea, a heavy downpour prompted flash flood warnings for Mecca and Oasis. But no damage was reported.
Heavy rain also caused some flash flooding near Borrego Springs, in San Diego County.
Rock slides and debris were reported overnight in the area burned by the Mountain Fire, which has scorched 27,245 acres. But after the rain, observed fire activity was significantly less than Saturday, when a huge cloud was generated by the fire itself.