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Coastal Windstorm Insurance
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The National Weather Service classifies tropical storms as low
pressure systems forming over tropical areas, with winds of a
minimum of 40 mph. Hurricanes are classified by using the Saffir/Simpson
intensity scale which measures atmospheric pressure in terms of
millibars (mb) or inches of mercury, along with wind speeds, storm
surge and damage:
THE
SAFFIR/SIMPSON CLASSIFICATION SYSTEM FOR HURRICANES
Category |
Wind speeds |
Pressures |
Storm surge |
Damage |
| 1 |
74-95 mph |
Greater than 980 mb |
4-5 ft. |
Light |
| 2 |
96-110 mph |
965-979 mb |
6-8 ft. |
Moderate |
| 3 |
111-130 mph |
945-964 mb |
9-12 ft. |
Extensive |
| 4 |
131-155 mph |
920-944 mb |
13-18 ft. |
Extreme |
| 5 |
More than 155 mph |
Less than 920 mb |
Greater than 18
ft. |
Catastrophic |
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