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Flash flooding was reported Saturday afternoon in Chihuahua Valley, a remote canyon northeast of Palomar Mountain, where more than 880 firefighters braved the fire in 100-degree-plus heat until the rain arrived.

A firefighter who became unwell in the 103-degree weather on Friday was airlifted to a hospital. Another firefighter suffered an injury, Cal Fire reported.

Evacuation requests were lifted for about 200 households in the valley Saturday evening, according to Cal Fire Battalion Chief Nick Schuler.

The monsoon storms that hit northeast San Diego County and western Riverside County were a double-edged sword, as lightning sparked several small lightning-caused fires Saturday. Three small fires were reported in the Palomar Mountains and two in the Cuyamaca Mountains, although most were just a single tree on fire, said Schuler.

A dry lightning strike sparked the Chihuahua fire last Thursday near Chihuahua Valley Road and state Route 79.

No structures were damaged, and the estimated cost to fight the fire is estimated at $1.5 million according to Cal Fire.