Erin, the first hurricane of the season, exploded to a Category 5 hurricane Saturday, and despite fluctuations in intensity, the storm is remaining formidable this weekend. Here's where it could head in the week ahead.

Hurricane Erin is now a Category 5 storm, the highest on the class, rapidly intensifying overnight into early Saturday morning as it threatens the Leeward Islands and Puerto Rico, then will move along the U.

Hurricane Erin formed in the Atlantic Aug. 15 and rapidly strengthened to a catastrophic Category 5 storm with 160 mph winds on Saturday, Aug. 16, according to the National Hurricane Center. Erin is the first hurricane of the 2025 Atlantic hurricane season.