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While hurricanes pose the greatest threat to life and property, tropical storms and depression also can be devastating. Hazards from tropical cyclones (which include tropical depressions, tropical storms, and hurricanes) include storm surge flooding, inland flooding from heavy rains, destructive winds, tornadoes, and high surf and rip currents.

Extreme Winds

Winds from a hurricane can destroy buildings and manufactured homes. Signs, roofing material, and other items left outside can become flying missiles during hurricanes.

When the National Weather Service issues an Extreme Wind Warning, it means: 1) Extreme hurricane winds are imminent or happening NOW. 2) Sustained winds of 115 mph or greater are expected. 3) Take immediate shelter in an interior portion of a well-built structure.

 

Storm Surge

Storm surge is the abnormal rise of water generated by a storm's winds. This hazard is historically the leading cause of hurricane related deaths in the United States. Storm surge and large battering waves can result in large loss of life and cause massive destruction along the coast.

Storm Surge Warning: There is a danger of life-threatening inundation from rising water moving inland from the shoreline generally within 36 hours. Promptly follow evacuation and other instructions from local officials. Storm Surge Watch: There is a possibility of life-threatening inundation from rising water moving inland from the shoreline generally within 48 hours. Promptly follow evacuation and other instructions from local officials.

 

What are the impacts of storm surge? Large areas covered with deep water due to storm surge flooding. Structural damage to buildings, with some washing away. Locations may be uninhabitable for an extended period. Large sections of roads washed out or severely flooded. Major damage to marinas, docks, boardwalks, and piers.

 

Inland Flooding

Flooding from heavy rains is the second leading cause of fatalities from landfalling tropical cyclones. Widespread torrential rains associated with these storms often cause flooding hundreds of miles inland. This flooding can persist for several days after a storm has dissipated.

Inland Flooding:
It doesn't take a major hurricane to cause major impacts to an area. Even relatively weak tropical systems can produce vast amounts of rainfall well inland from the coast, leading to devastating flooding.

 

Don't underestimate the power of water! 6 inches of fast-moving water can knock over and carry away an adult. 12 inches of fast-moving water can carry away a small car. 18-24 inches of fast-moving water can carry away most large SUVs, vans and trucks.

 

Tornadoes

Tornadoes can accompany landfalling tropical cyclones. These tornadoes typically occur in rain bands well away from the center of the storm.

TORNADO TERMINOLOGY 1) Tornado Watch: Weather conditions could lead to the formation of severe storms and tornadoes. Be prepared! Know your safe location. Be ready to act quickly if a Warning is issued or you suspect a tornado is approaching. 2) Tornado Warning: A tornado has been spotted or indicated by weather radar, meaning a tornado is occurring or expected soon. Take Action! There is imminent danger to life and property. Immediately seek refuge in the safest location possible. 3) Tornado Emergency: An exceeding rare situation with a severe threat to human life and catastrophic damage due to a confirmed violent tornado. Take Action! Immediately seek refuge in the safest location possible.