Hurricane Milton’s long reach was already extending into South Florida, prompting multiple tornado warnings and the threat of potentially damaging storms rolling in. The National Hurricane Center reported that Milton, which is still 190 miles southwest of Tampa, spawned a “tornadic supercell” on Wednesday morning with at least one tornado on the ground near Alligator Alley in the Everglades. A supercell thunderstorm is one that generates rotating updrafts that can grow into tornadoes. The National Weather Service issued tornado warnings for areas of Palm Beach County that expired at 11:45 a.m.