The mayor of Tampa was quite blunt about it:
[Mayor] Castor noted that many Floridians are already leaving the area. For those trying to stay home, she urged them to reconsider.
“They may have done that in others,” Castor said, referring to Floridians riding out previous storms. “There’s never been one like this.”
“Helene was a wake-up call. This is literally catastrophic, and I can say without any dramatization whatsoever: If you choose to stay in one of those evacuation areas, you’re going to die,” she continued.
Sometimes hurricanes are overhyped, which creates a “boy who cried wolf” mentality in residents. This time, though, the danger does seem very stark, and what happened with Helene will probably make people pay very serious attention.
Why is Tampa so vulnerable? The answer is rather simple:
The city is especially susceptible to hurricane damage due to its low-lying topography. …
While the city has survived other tropical storms over the years, Hurricane Milton, a category 5 storm which is set to make landfall in Florida on Wednesday, is concerning because Tampa is vulnerable to storm surges due to its shallow waters. Milton’s storm surge is forecasted to raise water levels by eight to 12 feet in Tampa Bay, if peak surge happens during the high tide. …
The last hurricane to directly impact Tampa Bay was the Tarpon Springs Hurricane of 1921. As a Category 3 storm, it caused eight deaths, an 11-foot surge and cost $10 million in damages (worth nearly $180 million today when accounting for inflation).
That seems a lot less serious than what is forecasted for Milton.
The heightened risk is partially a result of topography. The Gulf of Mexico coastline of Florida is shallow with a gentle, sloping shelf. The higher ocean floor acts as a barrier that retains the storm’s outflow of water, forcing the ocean to surge onto shore. That’s the opposite of Florida’s east coast, where the ocean floor drops suddenly a few miles from the coast.
“You can have the same storm, the same intensity, the same everything, but very different surges,” said Klotzbach.
A 2015 report from the Boston-based catastrophe modeling firm Karen Clark and Co. concluded that Tampa Bay is the most vulnerable place in the U.S. to storm surge flooding from a hurricane and stands to lose $175 billion in damage. …
“It’s a huge population. It’s very exposed, very inexperienced and that’s a losing proposition,” Emanuel, who has studied hurricanes for 40 years, said. “I always thought Tampa would be the city to worry about most.”
Considering everything, Tampa has been rather lucky in regard to hurricanes till now.
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