Home Ocean Facts What is the difference between a hurricane and a typhoon? What is the difference between a hurricane and a typhoon?
Tropical cyclone terminology Tropical Cyclone Intensity Tropical cyclone intensity is defined by the maximum mean wind speed over open flat land or water.
This is sometimes referred to as the maximum sustained wind and will be experienced around the eye-wall of the cyclone. Mean Winds and Gusts Mean Wind: In most of the world the mean wind speed is defined as the wind speed averaged over a period of 10 minutes.
It should be measured at 10 m above the surface. The major exception is the USA where they use a 1-minute average. In most of the world the wind gust speed is defined as the wind speed averaged over 2 or 3 seconds in Australia we use 3 seconds. It is often the stronger gusts that cause the most significant damage to buildings While a cyclone advice may refer to a certain maximum sustained wind or gust, there will be localised points where the winds will exceed this value, particularly in gullies, about ridges and between buildings where winds can be funnelled by the landscape.
Extent of Significant Winds The extent of damaging winds will vary between cyclones. More importantly, the most severe winds will be confined to a small area around the outside of the eye. Often people will experience the winds in the outer part of a Category 4 or 5 cyclone.
They will believe that they have experienced a major cyclone, yet the winds may have only been Cat 1 or 2 strength. It is important to recognise the structure of a cyclone when assessing past experience.
This will make a future direct hit less of a surprise. Damage to some crops, trees and caravans. Craft may drag moorings. These winds correspond to Beaufort 8 and 9 Gales and strong gales. Significant damage to signs, trees and caravans.
Heavy damage to some crops. Risk of power failure. Small craft may break moorings. These winds correspond to Beaufort 10 and 11 Storm and violent storm. These winds correspond to the highest category on the Beaufort scale, Beaufort 12 Hurricane. Many caravans destroyed and blown away.Disclaimer: The tropical cyclone information displayed here is based on the latest NOAA and JTWC reports received here at CIMSS, and may or may not be the most current forecast available from these official forecasting agencies.
The home page for the Central Pacific Hurricane Center, which covers the Pacific Ocean from W to the dateline.
Tropical cyclone: Tropical cyclone, an intense circular storm that originates over warm tropical oceans and is characterized by low atmospheric pressure, high winds, and heavy rain. Also called typhoons and hurricanes, cyclones strike regions as far apart as the Gulf Coast of North America, northwestern Australia, and eastern India.
Tropical Cyclone Intensity.
Tropical cyclone intensity is defined by the maximum mean wind speed over open flat land or water. This is sometimes referred to as the maximum sustained wind and will be experienced around the eye-wall of the cyclone.
Hurricanes and typhoons are the same weather phenomenon: tropical cyclones.. A tropical cyclone is a generic term used by meteorologists to describe a rotating, organized system of clouds and thunderstorms that originates over tropical or subtropical waters and has closed, low-level circulation.
Click on an area of interest to receive a regional map. The tropical cyclone data presented at this site are intended to convey only general information on current storms and must not be used to make life or death decisions or decisions relating to the protection of property: the data may not be initiativeblog.com you are in the path of a storm you should be listening to official information sources.