Update: The National Weather Service has extended the flash flood warning to 8 p.m.
“Do not drive your vehicle into areas where the water covers the roadway. The water depth may be too great to allow your car to cross safely. Move to higher ground,” the NWS warned.
Update: Threats of thunderstorms and flash-flooding in the Coachella Valley today prompted the California Highway Patrol to close some state highways in Riverside County.
State Route 177 in Desert Center, east of Coachella, was closed from its junction with Interstate 10 to state Route 62, due to flooding, mud and debris. The road was expected to stay closed for three or four hours, according to the CHP.
Route 62, which dips into Riverside County to connect with the 177 east of Joshua Tree National Park, was closed from Vidal junction to the 177, CHP Officer Donovan Rice said.
A National Weather Service flash flood warning is in effect until 1:45 p.m. Flash flooding and mud flows are possible on Dillon Road and the eastern sections of the Coachella Valley, also along I-10 east of Indio, according to the NWS.
The National Weather Service has issued a flash flood watch for the mountains and deserts east of I-15 for late morning through the early evening, on Tuesday July 31.
A very moist air mass will remain over the mountains and deserts bringing possible scattered showers and thunderstorms.
Excessive runoff from heavy downpours may cause rapid filling and overflowing of normally dry washes and small creeks and low-lying areas.
In addition, there is a threat of rock and mud slides below steep terrain in the mountains that were recently burned.
Flash flooding is a very dangerous situation. The NWS advises people to monitor later forecasts and be prepared to take action should flash flood warnings be issued.