Fire warning to continue through Thursday

A red flag warning signaling a high risk of wildfire will go in effect in San Diego County Tuesday, with forecasters warning of triple-digit heat, strong winds and humidity below 10 percent.

The warning went into effect at 9 a.m. and will last through 9 p.m. Thursday, according to the National Weather Service.

NWS forecasters said they expect winds between 15 and 25 miles per hour through the mountain passes and gusts up to 35 miles per hour in wind-prone areas.

Forecasters also said they expect the winds to be strongest during the mornings, diminishing slightly each afternoon and evening. By Thursday afternoon, the winds will be lighter but low single digit humidities will continue, according to the Weather Service.

The hottest days will be Tuesday and Wednesday, followed by marginally cooler days Thursday and Friday before the heat wave begins to break Saturday, the agency reported.

NWS forecasters said highs will be 10 to 20 degrees above average for the season. That means highs at the beaches will mostly be in the 80s, but inland highs will be in the 90s to near 100 degrees. Inland valley and foothill temperatures will likely range from 95 to 110 degrees.

Highs in the mountains and deserts could also reach triple digits.