What's the difference between a hurricane watch or warning?
Here’s what you need to know to make sure you know the difference between a hurricane watch or warning, a tropical storm watch or warning, and a storm watch or warning.
Here’s what you need to know to make sure you know the difference between a hurricane watch or warning, a tropical storm watch or warning, and a storm watch or warning.
Here’s what you need to know to make sure you know the difference between a hurricane watch or warning, a tropical storm watch or warning, and a storm watch or warning.
Hurricanes are dangerous and destructive. That’s why it’s so important to make sure you know and understand weather alerts ahead of and during a hurricane.
WXII 12 wants to make sure you stay safe while preparing for a hurricane disaster. Here’s what you need to know to make sure you know the difference between a hurricane watch or warning, tropical storm watch or warning, and a storm watch or warning.
Information provided by the National Weather Service.
Tropical storm watch: A Tropical storm watch is issued when tropical storm conditions, including winds of 39-73 mph, pose a POSSIBLE threat to a specified coastal area within 48 hours.
Tropical storm warning: A tropical storm warning is issued when tropical storm conditions, including winds of 39-73 mph, are EXPECTED in a specified coastal area within 36 hours or less.
Hurricane watch: A hurricane watch is issued when sustained winds of 74 mph or higher are possible within the specified area of the watch. Because hurricane preparedness activities become difficult once winds reach tropical storm force, the watch is issued 48 hours in advance of the onset of tropical storm force winds.
Hurricane warning: A hurricane warning is issued when sustained winds of 74 mph or higher are expected somewhere within the specified area of the warning. Because hurricane preparedness activities become difficult once winds reach tropical storm force, the warning is issued 36 hours in advance of the onset of tropical storm force winds.
Extreme wind warning: Extreme wind warning is issued for sustained surface winds of 115 mph or greater from a major Hurricane (Category 3, 4, or 5) are expected within the next hour. This is usually associated with the eyewall of a major hurricane and is considered your final call to shelter in place.
Eyewall: An organized band of cumulonimbus clouds immediately surrounding the center of the tropical cyclone.
Landfall: The intersection of the surface center of a tropical cyclone with a coastline. Because the strongest winds in a tropical cyclone are not located precisely at the center, it is possible for a cyclone's strongest winds to be experienced over land even if landfall does not occur. Similarly, it is possible for a tropical cyclone to make landfall and have its strongest winds remain over the water.
Storm surge watch: The possibility of life-threatening inundation from rising water moving inland from the shoreline somewhere within the specified area, generally within 48 hours, in association with an ongoing or potential tropical cyclones, a subtropical cyclone or a post-tropical cyclone. The watch may be issued earlier when other conditions, such as the onset of tropical-storm-force winds, are expected to limit the time available to take protective actions for surge (e.g., evacuations). The warning may also be issued for locations not expected to receive life-threatening inundation but which could potentially be isolated by inundation in adjacent areas.
Storm surge warning: The danger of life-threatening inundation from rising water moving inland from the shoreline somewhere within the specified area, generally within 36 hours, in association with an ongoing or potential tropical cyclone, a subtropical cyclone or a post-tropical cyclone. The warning may be issued earlier when other conditions, such as the onset of tropical storm force winds, are expected to limit the time available to take protective actions for surge (e.g., evacuations). The warning may also be issued for locations not expected to receive life-threatening inundation but which could potentially be isolated by inundation in adjacent areas.
Tropical depression: A tropical cyclone that has maximum sustained surface winds (one-minute average) of 38 mph (33 knots) or less.
Tropical storm: A tropical cyclone that has maximum sustained surface winds ranging from 39-73 mph (34 to 63 knots).
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