Typhoon Rain to Pelt Canadian West Coast

September 23, 2011; 2:06 PM ET
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Coastal British Columbia, Canada, will get a heap of tropical rain as the remnants of two former typhoons sweep ashore during the next several days.

Torrential rain could trigger serious flooding and landslides in this rather inaccessible area.

The former Typhoon Sonca, the first of two big tropical cyclones to cross the Western Pacific Ocean from the area of Japan, will strike the B.C. coast with high winds and torrential rain through today. The center of the tropical rainstorm will make landfall in the nearby Alaska Panhandle.

Winds unleashed by Sonca will top 60 mph along the exposed coast from Vancouver Island into southeastern Alaska. Locally, gusts will reach hurricane force. Wettest parts of Vancouver Island to the northern B.C. coast will have at least 10 inches of rain by tonight.

Winds will lessen tonight through Sunday; however, rain, some heavy, will continue to fall in western B.C.

Next, the second tropical rainstorm, formerly Typhoon Roke, will reach the Pacific Coast of Canada and southeastern Alaska early next week. This tropical rainstorm will trigger further heavy rain and strong coastal winds. Some of this storm's heavy rain will also douse western Washington.

Meanwhile, a new typhoon is brewing in the western Pacific.

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