High pressure brings air stagnation alert

Weather officials have announced an air stagnation alert in effect in the Rogue Valley beginning early Thursday.

A high-pressure system has moved into the area, keeping air trapped in the valley.

This has caused pollutants to linger above the ground, making the air troubling for people with lung ailments.

"When this happens during the summer, it's usually no big deal," said Megan Woodhead, a meteorologist with the National Weather Service.

But the winter months find people burning woodstoves for warmth, which releases particles in the air that cannot be cleared out when a stagnant system moves into the area.

Woodhead said the stagnation advisory will stay in place at least through the weekend.

By Tuesday, the air could clear, with temperatures rising to the 50s and the sun peeking through the clouds.

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