VANCOUVER, Wash. -- Thursday's tornado in Vancouver was stirring memories of a deadly storm there back in 1972.

A powerful tornado stuck the area on April 5th, 1972.

Six people were killed and some 300 were injured, including about 70 children from the Peter S. Ogden Elementary School, which was demolished.

That storm caused upward from $3 million dollars in damage.

Steve Todd, chief meteorologist for the National Weather Service in Portland, says southwest Washington and northwest Oregon see only one or two tornadoes a year, most often in sparsely populated areas.

But, he says, Pacific Northwest tornadoes tend to be considerably weaker than those in the Midwest.