Radius of maximum wind
0Radius of maximum wind, by Wikipedia https://en.wikipedia.org/wiki?curid=10121426 / CC BY SA 3.0
#Tropical_cyclone_meteorology
#Tornado
#Weather_hazards
#Wind
The radius of maximum wind of a tropical cyclone lies just within the eyewall of an intense tropical cyclone, such as Hurricane Isabel
from 2003 The radius of maximum wind （RMW） is the distance between the center of a cyclone and its band of strongest winds.
It is a parameter in atmospheric dynamics and tropical cyclone forecasting.
The highest rainfall rates occur near the RMW of tropical cyclones.
The extent of a cyclone's storm surge and its maximum potential intensity can be determined using the RMW. As maximum sustained winds increase, the RMW decreases.
Recently, RMW has been used in descriptions of tornadoes.
When designing buildings to prevent against failure from atmospheric pressure change, RMW can be used in the calculations.
The RMW is traditionally measured by reconnaissance aircraft in the Atlantic basin.
It can also be determined on weather maps as the distance between the cyclone center and the system's greatest pressure gradient.
Using weather satellite data, the distance between the coldest cloud top temperature and the warmest temperatature within the eye, in infrared satellite imagery, is one
method of determining RMW. The reason why this method has merit is that the strongest winds within tropical cyclones tend to be located under the deepest convection,
which is seen on satellite imagery as the coldest cloud tops.
Use of velocity data from Doppler weather radar can also be used to determine this quantity, both for tornadoes and tropical cyclones near the coast.
Radar imagery of a tornado and associated mesocyclone in Wyoming on June 5, 2009.
Reflectivity data on the left show the calm interior of the tornado.
Velocity data on the right show where the strongest winds are located.
In the case of tornadoes, knowledge of the RMW is important as atmospheric pressure change （APC） within sealed...
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