Relating Gust Speed to Tree Damage in Hurricane Hugo, 1989

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Figure 1.
Map of study area indicating path of Hurricane Hugo in the Antilles.
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Figure 2.
Percentage of all trees surveyed receiving no damage plotted against maximum gust speed.
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Figure 3.
Mean damage class index for each site plotted against maximum gust speed.

Table 1.

Measured and estimated maximum gust speeds by location and the reliability of each.

Location	Maximum gust speeds as reported	Reliability^*
	Km/hr
Aguadilla, PR, Borinquen Field	105	A
Arecibo, PR	121	E
Arecibo Observatory, PR	97	A
Culebra, PR	322	C
Guadalupe, Wl. Grande Terre, north	322	E
Guadalupe, Wl, airport area	306(300+)	B
Guavate, PR, Tropic Ventures	121	C
Humacao, PR, WALO Radio	174	C
Isla Grande, PR	148	B
Manati, PR, Tortuguero	129	E
Ponce, PR, airport area	56	A
Rio Piedras, PR, Botanic Garden	137	E
Roosevelt Roads Naval Base, PR	217(192+)	B
San Juan, PR, airport area	148	A
St. Croix, USVI	306	E
St. Thomas, USVI, airport area	296	C
St. Thomas, USVI, Coral World	296	E
Vieques, PR	274	E

↵* A = calibrated instrument, B = extrapolated from A-class measurement, C = uncalibrated and possibly unreliable instrument, E = estimate based on distance from instrument-measured gust speed.