A heat wave, unrelenting drought and strong winds were fueling three fires around San Diego on Wednesday, forcing evacuation of thousand of homes and businesses.

Two wind-driven flames were racing across dry, brittle terrain at Camp Pendleton north of the city, and another was threatening the coastal city of Carlsbad and in south. The Carlsbad fire resulted in more than 11,000 homes, businesses and cellphones being warned to evacuate, the San Diego County sheriff’s office said.

At Camp Pendleton, home to about 42,000 military personnel, employees of a naval weapons station, residents of base housing development and an elementary school were told to evacuate. Marine Sgt. Irons told USA TODAY the Pendleton evacuation effort included residents of DeLuz base housing, personnel at Naval Weapons Station Fallbrook and students and staff at Mary Fay Pendleton Elementary School.

The website for Mary Fay Pendleton School contained the message that the school “is currently being evacuated. We are encouraging parents to NOT pick up their students at the school. Children at MFP will be evacuated to Paige Fieldhouse on base. Parent calls are being sent now.”

The DeLuz compound includes more than 400 homes. The development’s website claims to “mark a new approach to military housing. Our community breaks away from the simple housing tracts of the past and embraces the modern lifestyles of family living.”