Summary
SUMMARY
Diego Garcia is not a typhoon haven. The surrounding topography is low and does not provide an extensive wind break. Expected winds of 60 kt or greater justify a sortie to the north of all ships in the lagoon. With expected winds around 35-40 kt, sortie is not recommended. Small harbor craft can be moored at existing pier structures and larger ships can be anchored in the lee anchorage. In the past 30 years, the island has not been seriously affected by a severe tropical cyclone even though it is threatened about once a year. The maximum sustained wind associated with a tropical cyclone in the past 30 years at Diego Garcia has been approximately 40 kt.
Source: http://www.nrlmry.navy.mil/port_studies/thh-nc/diegogar/text/summary.htm
