Life-threatening storm surges are expected to hit Florida's Gulf Coast this week with the arrival of Hurricane Milton, which was upgraded Monday afternoon into a Category 5 hurricane over the southern Gulf of Mexico.

The footage below, captured by National Oceanic and Atmospheric Administration weather satellites, demonstrates Milton's robust windup and growth. The storm is projected to make landfall on the west coast of the Florida peninsula on Wednesday, and is tracking toward the well-populated Tampa Bay region. It's serious.