BELDEN (CBS / AP) — Strong winds and low humidity have helped a wildfire burning in Northern California’s Plumas National Forest expand to nearly 47 square miles.

Officials say the Chips Fire — burning since July 29 — consumed an additional 15 square miles after jumping fire lines late Friday and early Saturday.

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The fire has prompted the evacuation of 55 homes spread out across a rural area near the community of Belden, a tiny mountain town about 120 miles north of Sacramento.

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Nearly 1,000 firefighters are battling the blaze, with more firefighters heading to the area to help out. Fire crews on the scene now are working under a scorching sun, in rugged terrain covered by thick brush and dry timber.

A Red Flag warning has been issued for the area, with the National Weather Service saying that temperatures could break 100 degrees Saturday and Sunday.

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