The heat wave poses risks of heat-related illnesses, particularly in lower-elevation mountain and interior areas where temperatures could reach up to 110°F (43.3°C). Fire weather conditions are a significant concern, with a 20% to 30% chance of red-flag conditions in areas such as the Interstate 5 corridor, San Luis Obispo County, and the interior mountains of Santa Barbara and Ventura counties. These conditions could lead to rapid fire spread and erratic fire behavior. Coastal areas may also face dangerous rip currents and elevated surf, although these conditions have subsided since the weekend.