The Cyclone known as Nargis, hit Myanmar on May 2 making massive destruction and at least 90, 000 deaths and 56, 000 still reported missing.

Image and figures of information: http://en.wikipedia.org/wiki/Cyclone_Nargis

The Cyclone, destroyed the boats in the Yangon Harbour, detached roofs of buildings and created an inundated city with water level up to the knee with the speed of 150 mile an hour ( 240 km/h ) winds.

Affected structures and speed of wind: http://news.nationalgeographic.com/news/2008/05/photogalleries/cyclone-photos/photo3.html
After the Cyclone had hit Myanmar. The image above shows the Yangon port with fishing boats damaged by the Cyclone Nargis. The areas outside of Yangon were also affected by the Cyclone.

Image and affected areas: http://news.nationalgeographic.com/news/2008/05/photogalleries/cyclone-photos/photo4.html