 We also know that our first responders and emergency services are strong, but that once those sustained winds hit 45 miles per hour, our ambulances, our fire trucks, they can no longer mobilize. Jack Bevin, a senior hurricane specialist with the National Hurricane Center, says it's unusual to get a hurricane reaching Category 4, as Beryl did last Monday, this early in the hurricane season. Beryl broke several records for being the earliest hurricane of its intensity.