An unexpected windstorm whistled through Western Washington Saturday, knocking out power to 13,000 homes across the region, including many on South Whidbey.

Sustained winds of up to 35 miles per hour and gusts up to 55 kept South Whidbey Fire/EMS busy through the weekend. Emergency responders handled 66 calls from Saturday through Sunday. Saturday generated the most calls — 40 — which involved either trees blocking roads or downed power lines.

In addition, Fire/EMS responded to a number of medical emergencies, two marine incidents and a home on fire. The fire was addressed by the combined efforts of the home owner with a garden hose and responding firefighters.

One of the medical incidents occurred on Saturday when a Freeland resident was treated for a minor head laceration resulting from a falling branch.

About 2,800 homes were still without power as of Monday morning, according to Puget Sound Energy Spokesman Ray Lane.

“We have a small army of line trucks on the island right now,” Lane said. “Its one of the hotspots.”

Lane mentioned Island, Skagit, Kitsap, and Whatcom counties as the areas most affected by the storm.

According to utility spokeswoman Akiko Oda, the outages had been reduced to 700 customers in Island County as of Tuesday morning. She could not be more specific about where the outages were, saying the focus was on restoring power, not gathering area specifics.

In Langley, Mayor Fred McCarthy reported that other than quite a few tree limbs and power lines down, there was no major damage to the city.

The Highlands, the city’s water supply, lost water during the power outages but never fell below the “safe level.”

“Quite a lot of water was drawn down but not below the levels in terms of fire safety,” McCarthy said.

The supply was being re-filled as soon as power was restored at 8 a.m. on Sunday.

“This is kind of one of those singular events that happens every few years,” McCarthy said.