Woman spends three hours in water after boat sinks in reservoir south of Moses Lake

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Grant County Sheriff's Office photo An infrared photo taken from a drone shows a rescue vessel approaching a woman who had been in O'Sullivan Reservoir for about three hours.

After her boat sank at O’Sullivan Reservoir Sunday night, a 52-year-old Spokane woman spent about three hours in the water.

However, her companion was able to swim to shore for help as the woman, wearing a lifejacket, clung to a gas can for buoyancy.

As several agencies searched for her, Grant County Sheriff’s Office used a drone with an infrared camera to locate the woman about 10:45 p.m.

It all started about 8 p.m. when their 16-foot vessel sank.

O’Sullivan Reservoir is about 15 miles south of Moses Lake and is part of the Potholes Reservoir.

After their boat sank, her 40-year-old companion was able to swim to shore along Highway 262 and summon help.

Sheriff’s deputies, fire personnel and private citizens searched for the woman until the drone’s infrared camera spotted her.

She suffered from hypothermia and issues related to inhaling gas fumes.

She is being treated at Harborview Medical Center in Seattle.