On Set 28, 2022, Hurricane Ian slammed Florida with strong category 4 winds (up to 150 mph) and a catastrophic storm surge of up to 12 feet. Here is what you need to know about storm surges and their impacts. In this video, Weather IQ meteorologist Chris Mulcahy explains what causes storm surge, why it's the deadliest aspect of a hurricane and the historic levels we've seen in the U.S. from Hurricane Katrina and Hurricane Hugo.

A hurricane's most lethal weapon
Hurricanes bring an arsenal of dangerous weather when they make landfall. Flash flooding, high winds, rip currents and tornadoes are among those, but it's often the storm surge that is most deadly and destructive.

Simply put, storm surge is the rise in the sea level during a storm. Specifically from a low-pressure system like a hurricane.

Storm surge impacts
It only takes a few inches of rising water to knock out the power and six inches of moving water to knock you off your feet.

Once water levels reach up to three feet, it is too late to evacuate. This is enough to cause cars to float. This much water will completely flood out the first floor of homes and businesses, forcing those who stayed to rush to higher ground. #Weather #Hurricane #WeatherIQ

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