Red flag fire danger warning
A red flag fire danger warning outside a fire station in Valley Center. Courtesy OnScene.TV

San Diego Gas & Electric has notified nearly 25,000 rural customers that power may be shut off Wednesday morning because of critical wildfire conditions.

The National Weather Service issued red flag warnings Tuesday for the San Diego County valleys and mountains through Friday morning.

Moderate strength Santa Ana winds are expected to arrive Tuesday night and last until Thursday evening. The forecast calls for northeast to east winds of 20 to 30 mph with gusts of 40 to 55 mph and relative humidity as low as 11%.

SDG&E noted that because the potential shutoffs are not expected to occur until Wednesday at the earliest, there would be no impact on vote centers.

The utility said it activated its emergency operations center to monitor conditions 24/7 and has personnel and pre-staged materials and equipment ready for response.

Chris Jennewein is founder and senior editor of Times of San Diego.