The National Weather Service office in San Diego issued a flash flood warning Thursday afternoon for northeastern San Diego County.
Shortly after 1:30 p.m. radar showed thunderstorms producing heavy rain across the area.
The warning will be in effect until 4:30 p.m.
Flooding was expected in Borrego Springs, Julian, Warner Springs, Lake Cuyamaca, Santa Ysabel and along portions of highways 78 and 79
