TIMELINE: Red Flag Warning goes into effect late Thursday. Here's when highest fire danger will be

SAN FRANCISCO (KGO) -- A Red Flag Warning begins Thursday night at 11 p.m. after gusty winds ramp up in the afternoon. Strong winds and low humidity are expected through Saturday afternoon.

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The highest fire danger will be Friday morning 1 a.m. - 7 a.m. and Saturday morning 1 a.m. - 7 a.m.

Gusts in the Valley could be as high as 45 mph, and in our hills as high as 65 mph.

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Humidity levels will be as low as 5%.

The Red Flag Warning will be in effect through 5 p.m. Saturday.

A Wind Advisory will also be in effect 11 p.m. Thursday through 8 a.m. Saturday.

Winds relax Saturday afternoon, and the fire danger is over.

Watch the latest AccuWeather forecast and take a look at recent weather stories and videos.