Wildfire near Fort Collins, Colorado, spreads to nearly 1,000 acres as winds push flames into forested areas; blaze believed to be human-caused

FORT COLLINS, Colorado , May 16, 2012 () – A wildfire in northern Colorado that's grown to nearly 1,000 acres is putting out more smoke as erratic winds have pushed it into areas with more trees.

About 200 firefighters were fighting the blaze northwest of Fort Collins on Wednesday. It's about 5 percent contained.

The U.S. Forest Service says the fire was caused by humans. The investigation into how it started is continuing.

Two groups of residents have received notices to be prepared for possible evacuations, but no one has had to leave. The fire is within a quarter mile of some homes.

In western Colorado, firefighters expected to have a 170-acre fire between Delta and Whitewater fully contained sometime Friday. It was 80 percent contained Tuesday. That fire was started by lightning. No structures are threatened.

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