Rain and thunderstorm chances will be possible Sunday and Monday. The National Weather Service says severe storms could be possible on Monday afternoon through Monday night. According to the Climate ...

The pattern will remain supportive of scattered thunderstorms through the late week, some of which may be able to become severe. Tonight: Mostly cloudy, breezy. 80% chance of rain and storms.

Thunderstorms can form when warm, moist air clashes with cooler air, something that rarely happens in the Pacific Northwest, which is dominated by cooler air coming off the Pacific Ocean and doesn ...