OLYMPIA, Wash. -- Three people have been killed and many more rescued in Washington state during the raging rain and windstorm, according to Governorn Christine Gregoire.

The governor told a news conference in Olympia Tuesday that there have been three fatalities. In addition to two reported earlier in Grays Harbor County, the third was the result of a mudslide.

About 150 people have been rescued by Coast Guard, Navy and King County helicopters.

Gregoire said storm and flood damage in Washington will be significant.

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Gregoire will fly over the flooded areas Tuesday but it will take days for emergency officials to assess damage and come up with a request for federal aid.

One of the worst areas is at Centralia-Chehalis where water over I-5 is 10 feet deep. The impact on lost business from delayed truck traffic is estimated at $4 million a day.

The state has called up more than 100 members of the National Guard to help with emergency operations.