Stormy weekend to bring a lot of rain to the mountains

SEATTLE -- The "rainy season" in the Northwest doesn't officially begin until Oct. 1 but we're staring it a few days early this year.

A series of storms are set to sweep through the region Friday through the weekend, mainly just bringing a little wind and a lot of rain -- especially to the mountains.

The first storm will swing through on Friday -- fairly run of the mill for autumn but enough to bring about 1 inch of rain to the mountains and maybe 1/4-1/2" of rain to the lowlands. But a second system will bring much heavier rain Saturday into Saturday night with several inches of rain falling in the mountains. Showers would then linger through the day Sunday.

By early Monday morning, rainfall totals are expected to reach 5-8 inches in the mountains -- especially the Olympics and southern Cascade Mountains, with 3-5 inches likely in the other Cascades. In the lowlands, rainfall totals of 1-3" are possible from Seattle southward and about 0.50-1.50" north of Seattle due to rain shadowing off the Olympic Mountains.

While there are no flood watches or advisories in effect yet, that amount of rain will cause rivers to rise and forecasters will be monitoring whether any will near or reach their flood stages -- especially those on the Olympics -- by early next week.

The winds will also be fairly breezy on Saturday, likely reaching 40-45 mph or so on the coast and Northwest Interior and gusting to 35-40 mph in the interior. A very rainy, windy day for both UW and WSU football games in Seattle that day.

After another storm rolls through around Tuesday to officially kick off the rainy season, and then the weather is expected to calm down for a few days as we near the end of next week.