PORTLAND, Ore. --A mother with two infants were among seven people who had to be rescued after getting trapped in the floodwaters near Tillamook overnight.

The Fawcett Creek Bridge and about 40 feet of road were washed out but the two drivers didn’t realize it until it was too late. Their two cars plunged 15 feet into the water and thankfully the Coast Guard made it in time to rescue all of them. The mother was alone with the two babies in one car and four people were inside the other car.

Authorities said none of the victims had life-threatening injuries, but some were treated for hypothermia.

As the storm dumped rain overnight from the Oregon Coast to Portland and Vancouver, the Wilson River RV Park was put under voluntary evacuation and the Wilson River was expected to rise about three feet above flood stage. There were also reports of flooding on the Trask River, south of Tillamook.

In the Portland area, barricades were put up overnight to block off some roads that were flooded in Southeast Portland, but by 7 a.m., the barricades were removed and the water had receded.

Landslides and debris flow dangers

Elsewhere, a section of Highway 6 was closed, due to multiple landslides between milepost and 20. Witnesses said the biggest slide had about 25 feet of debris.

And on Mt. Hood, geologists said they were also concerned about slides around recent wildfire burns. Officials were monitoring creeks in the area.

The strong rain storm gripping the Portland and Vancouver Metro areas was causing even more problems in the Seattle area Wednesday, as a state emergency was declared late Wednesday.

One Washington family even had to be rescued by boat after getting stranded by flood waters in their neighborhood.

 Also: Rainier closed

The storm was not as strong in Oregon, but it did still cause downed trees and powelines as well as some backed up drains causing flooding on roadways.

"Expect another wet and blustery day," said KGW Meteorologist Dave Salesky. "A strong cold front is sagging south, coming out of Washington state. Rain will increase Wednesday morning and continue through the evening hours."

He said a drying trend will begin Thursday, but before that happens, the Portland and Vancouver Metro areas will likely get about an inch of new rain and more gusty winds.

"When Sky-8 was flying Wednesday morning, Pilot Darren Larsen reported 45 mph winds at 1,000 feet. In the Cascades a high wind warning is in effect with wind gusts at the tops of the mountains possibly reaching 75 mph," Salesky added.

 Salesky's blog: Storm, what storm?

Wind and rain will decrease Wednesday night and on Thursday, a high pressure system will return, bringing drier conditions and near-normal temperatures, according to Salesky. He said this will continue through early next week.

On Tuesday night, some areas of the Oregon Coast got eight inches of rain and 40 mph wind gusts were reported in the western hills of Oregon early Tuesday night. Waldport saw peak gusts of 60 mph. Garibaldi saw 56-mph winds and Astoria experienced 44 mph winds.

Portland even felt the winds, with 40 mph gusts reported in the Metro area.

The rainfall was covering most of the Pacific Northwest, with the worst of it expected in Washington, but areas up and down the Oregon coast received an inch or more. Newport received more than 2 inches, while Brookings approached 2 inches as well, heading into Tuesday night.

The moisture from this storm system traveled all the way from the Phillipines, while a Pacific Jet Stream is pushing air at 220 mph, causing high winds at sea level up and down the coast.

An urban flood watch was issued on Tuesday, warning residents in the Portland Metro area that storm drains could be backing up.

The National Weather Service predicted the Cowlitz River would reach 18.5 feet by Wednesday afternoon, and that most SW Washington rivers were expected to crest later that night. Salesky added that the Tualatin River, Johnson Creek and Beaver Creek will likely rise rapidly and some low-lying areas may get flooded.

 Your Pics: View/submit your storm photos

Freezing levels were expected to be above 10,000 feet. Forecasters also said tide activity could affect nearby rivers.

Crews in Portland and Vancouver were clearing sewer drains and catch basins in advance of the possibility of flooding. Officials were preparing for downed tree branches and minor street flooding.

More: Read NWS Alert

If you see a clogged catch basin or sewer call the City of Portland's Dispatch line at (503) 823-1700.

Getting rid of wet leaves:

The city also announced leaf depots where people can drop off leaves for a minimal fee November 15-16 from 8 a.m. to 4 p.m. Saturday, November 15, at Floyd Light School and Westmoreland Park and Sunday, November 16, at Gabriel Park and Lents Park.

The rain will start to taper off late Wednesday and early Thursday. A short drying trend will begin at week's end, with high temperatures in the upper 50s through the weekend.

It will be a disappointing week for skiers, because rain will be falling in the Cascades, not snow.

"Snow levels will stay well above pass elevations," Salesky added.