Forecasters warn of cloud-to-ground lightning in northern San Diego County

For the second time in three days, the monsoon is producing thunder and lightning in the heavily populated areas of San Diego County west of the mountains.

The National Weather Service says that the lightning — including highly dangerous cloud-to-ground strikes — could linger in northcentral San Diego County until 10 a.m. to 11 a.m. on Tuesday.

Forecasters say they’ve already had reports of thunder and lightning in and around Escondido, Poway, Fallbrook, Valley Center, Bonsall and Camp Pendleton. Thunder also has been heard in Carmel Valley and Del Mar. It’s possible that the thunderstorms will reach local beaches.

The thunderstorms could produce brief periods of rain. There also could be “dry lightning”, raising the prospect for wildfires in areas like the Cleveland National Forest, which was closed to the public on Monday for a two week period due to the threat of fire.