That’s leading to the creation of mountain waves, which arise when strong winds blow perpendicular to a mountain range. The waves shoot down the coastal side of the mountains, gaining speed along the way, and are more casually referred to as simple Santa Ana winds.

Dire warnings have been issued for the Los Angeles area, with a dangerous threat for the strongest wind event in more than a decade. Outages and extreme fire behaviours are major risks

San Diego Gas & Electric began public safety power shutoffs Tuesday as San Diego County braces for a Santa Ana wind event and Red Flag Warning.

The National Weather Service has issued a Red Flag Warning for San Diego County due to high winds and low humidity.

Weather officials have issued a red flag warning for parts of Southern California as extreme fire conditions increase.

San Diego County — in the midst of one of the driest periods on record — will be lashed by unusually cold and expansive Santa Ana winds early Wednesday that could spark wildfires, snap trees and knock out power,

ABC 10News reporter Adam Campos was live from Ramona to take a closer look at SDG&E's power shutoffs as more than 64,000 customers could be impacted Wednesday in anticipation of Santa Ana wind conditions.

Amid an already dry winter season, the first Santa Ana wind event of 2025 is elevating fire danger this week and threatening power shut-offs for thousands of San Diego Gas & Electric customers.

Kasia Gregorczyk reports.