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NYC Hazards: Saffir-Simpson Hurricane Scale

Hurricanes are categorized by strength using the Saffir-Simpson Hurricane Scale.

The Saffir-Simpson scale assigns a 1 to 5 rating based on the hurricane's intensity, and estimates of potential property damage. Hurricanes reaching Category 3 and higher are considered major hurricanes because of their potential for loss of life and damage. Category 1 and 2 storms are still dangerous and warrant preventative measures.

SAFFIR-SIMPSON HURRICANE SCALE

Scale Number (Category)
Hurricanes Sustained Winds (MPH)
Types of Damage
1
74-95

Minimal
Damage primarily to shrubbery, trees, foliage and unanchored mobile homes. No real damage to other structures.

2
96-110

Moderate
Some trees blown down. Major damage to exposed mobilehomes. Some damage to roofing materials, windows and doors.

3
111-130

Extensive
Large trees blown down. Mobile homes destroyed. Some structural damage to roofing materials of buildings. Some structural damage to small buildings.

4
131-155

Extreme
Trees blown down. Complete destruction of mobile homes. Extensive damage to roofing materials, windows and doors. Complete failure of roofs on many small residences.

5
> 155

Catastrophic
Complete failure of roofs on many residences and industrial buildings. Extensive damage to windows and doors. Some complete building failure.




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