The chairman of a House Homeland Security subcommittee is asking the Federal Emergency Management Agency to detail what it did to prepare for Hurricane Helene after it became clear there would be catastrophic flooding.

Helene made landfall in Big Bend, Florida, on Sept. 26, causing flooding that devastated North Carolina, Tennessee and other Southern states and claimed more than 200 lives.

In a letter sent Saturday, Rep. Anthony D’Esposito, chairman of the House Emergency Management…