 Beryl gained a lot of strength right before hitting the Windward Islands. It took less than two days to go from a measly tropical depression to a major Category 4 hurricane. Scientists warn climate change makes it more likely that storms will rapidly intensify in this way. And when a storm gains strength very quickly, like Beryl, it can be difficult for those in its path to prepare. There's less time to warn residents and less time to evacuate and get supplies.