Cyclone Calculator
A cyclone is a storm accompanied by high speed whistling and howling winds. It brings torrential rains. Here you can calculate the radial velocity in a cyclon using the particle density. Weather calculation is made easier here.
Cyclone Calculator

Particle density (p_{particle})kilogram/meter^{3}

Air density (p_{air}) kilogram/meter^{3}

Radial distance (r) meter

Rotational velocity (w) radian/second

Particle diameter (d) meter

Air viscosity (u) kilogram/metersecond

Radial velocity (v_{radial}) meter/second

Formula
V_{radial} = [( p_{particle}  p_{air} ) r w^{2} d^{2}] / ( 18 u )
Where,
v_{radial} = Cyclon Radial Velocity
p_{particle} = Particle Density
p_{air} = Air Density
r = Radial Distance
w = Rotational Velocity
d = Particle Diameter
/u = Air Viscosity
This online tool will help you dynamically to calculate the radial velocity in a cyclone.