Storm Surge Warning - There is a danger of life-threatening inundation from rising water moving inland from the shoreline somewhere within the specified area, generally within 36 hours.
NHC issues a hurricane warning 36 hours in advance of tropical storm-force winds to give you time to complete your preparations. Hurricane Warning - Hurricane conditions (sustained winds of 74 mph or greater) are expected somewhere within the specified area. Tropical Storm Warning - Tropical storm conditions (sustained winds of 39 to 73 mph) are expected within your area within 36 hours. When a tropical weather warning has been issued you need to activate your hurricane plan and get together your survival supplies or evacuate. Storm Surge Watch - There is a possibility of life-threatening inundation from rising water moving inland from the shoreline somewhere within the specified area, generally within 48 hours.Īs the tropical system approaches land, forecasters will upgrade to warnings. Because it may not be safe to prepare for a hurricane once winds reach tropical storm force, The NHC issues hurricane watches 48 hours before it anticipates tropical storm-force winds. Hurricane Watch - Hurricane conditions (sustained winds of 74 mph or greater) are possible within your area. Tropical Storm Watch - Tropical storm conditions (sustained winds of 39 to 73 mph) are possible within the specified area within 48 hours. The alerts start with watches and are a signal to start preparing for severe tropical weather. It’s important to know what each alert means. The National Hurricane Center issues alerts that relate specifically to tropical storms and hurricanes.
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