DISASTERS

The Latest: 1,000 calls for Colorado wildfire evacuations

  • A slurry bomber drops on the Sunshine Fire west of Boulder, Colo.,on Sunday, March 19, 2017.  The fire forced people from their homes early Sunday and ignited dead trees that exploded into black plumes of smoke, authorities and residents said.  (Paul Aiken/Daily Camera via AP)

    A slurry bomber drops on the Sunshine Fire west of Boulder, Colo.,on Sunday, March 19, 2017. The fire forced people from their homes early Sunday and ignited dead trees that exploded into black plumes of smoke, authorities and residents said. (Paul Aiken/Daily Camera via AP)  (The Associated Press)

  • Smoke rises from a wildfire near homes Sunday, March 19, 2017, in Boulder, Colo. Authorities said the small wildfire burning in the mountains forced people from their homes and is filling the sky with smoke. (Seth Frankel via AP)

    Smoke rises from a wildfire near homes Sunday, March 19, 2017, in Boulder, Colo. Authorities said the small wildfire burning in the mountains forced people from their homes and is filling the sky with smoke. (Seth Frankel via AP)  (The Associated Press)

  • A firefighter walks near the flames on the south side of the Sunshine Fire near Boulder Canyon west of Boulder, Colo., on Sunday, March 19, 2017. The fire forced people from their homes early Sunday and ignited dead trees that exploded into black plumes of smoke, authorities and residents said.  (Paul Aiken/Daily Camera via AP)

    A firefighter walks near the flames on the south side of the Sunshine Fire near Boulder Canyon west of Boulder, Colo., on Sunday, March 19, 2017. The fire forced people from their homes early Sunday and ignited dead trees that exploded into black plumes of smoke, authorities and residents said. (Paul Aiken/Daily Camera via AP)  (The Associated Press)

The Latest on a wildfire west of Boulder, Colorado, (all times local):

10:20 a.m.

Authorities have made more than 1,000 calls to residents in and around Boulder, Colorado, ordering them to leave their homes as a wildfire burns in the mountains just west of the university town.

Gabi Boerkircher with the Boulder Office of Emergency Management says an additional 2,200 reverse 911 calls early Sunday warned others to get ready to leave if conditions get worse.

It wasn't clear exactly how many houses or residents were evacuated because the calls could have gone to multiple people living in the same home and likely didn't include children.

The fire reported around 1:40 a.m. Sunday had burned 30 to 50 acres just a couple of miles from downtown Boulder. Several aircraft are making drops to battle the flames.

Emergency officials don't know how the fire started.

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8:45 a.m.

Authorities say a small wildfire burning in the mountains just outside the Colorado city of Boulder has forced people from their homes and is filling the sky with smoke.

Wind is pushing the flames early Sunday just a couple of miles from the downtown area. The fire was only 30 to 50 acres.

Shannon Cordingly of the Boulder Office of Emergency Management says it's unclear how many homes have been evacuated just west of the university town and how the flames ignited.

The agency says there are no reports of injuries or buildings destroyed. Cordingly says if the fire keeps spreading, more evacuations are possible.

Resident Seth Frankel, who's packed after being warned he may need to evacuate, says dead trees "are exploding into a black plume that goes into the air."