Husband's dream about 19 tornadoes

My husband dreamed he was swimming in a lake with old friends from high school. He saw tornadoes forming around them and said he counted 19 of them. He said he could see the debris being sucked up into each one. He also said the water in the lake was rising, so he took his cell phone out of his shirt pocket and was holding it up so it wouldn't be submerged.

He's the type that says he never dreams and doesn't read into them like I do. Thoughts?