TIMELINE: Unprecedented heat wave hitting Bay Area with record-setting March temperatures

SAN FRANCISCO (KGO) — An unprecedented heat wave is hitting the Bay Area, with record hot temperatures expected this week.

Monday is day one of the five-day heat wave across the Bay Area.

Each afternoon this week, we do expect records to be broken.

There is a high chance we will also have the hottest temperatures ever seen in March in the Bay Area. For many cities, that would be 90 degrees or higher.

A Heat Advisory is active through Friday evening with Moderate to Major heat risk all week.

The hottest days are expected to be Wednesday – Friday.

This level affects people sensitive to heat, especially those without access to cooling and hydration. Keep in mind this is our first heat wave of the year and we haven’t seen these temperatures since September.