UPDATE: Death toll from May 31 storms rises to 21

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Moore tornado May 20

The numbers continue to add up on last month’s deadly storms.

The death toll from the May 31 tornadoes and torrential downpours has risen to 21.

That brings the total from the May 19, May 20 and May 31 storms to 47.

Two children are still missing.

Officials said they believed the children drowned in the Oklahoma River while seeking refuge from the May 31 tornadoes in a storm drain.

The new estimates of physical damage are expected to be in the billions.