nebraska , not sure if same tornado as above
|LiveLeak.com - Nebraska Tornado Outbreak|
The New Plymouth radar is a doppler but the Met Service are stingy about public access. They have a user pays policy.
Taranaki has a 2,500m volcanic peak and the terrain plays a part in the incidence of tornadoes, enhancing low level shear due to deflection. If surface winds veer into the NE in unstable weather then the chance of tornadoes goes up.