Author Topic: NZ tornadoes New Plymouth  (Read 2703 times)

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Offline nmoir

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Offline nzstorm

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Re: NZ tornadoes New Plymouth
« Reply #1 on: 21 June 2011, 11:28:52 AM »
The Taranaki region seems to get a lot of tornadoes, small short track events. F0-f2 rarely F3.

The Met Service have done a blogg post of the hook echo here.
http://blog.metservice.com/
Steven Williams
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Offline Jimmy Deguara

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Re: NZ tornadoes New Plymouth
« Reply #2 on: 22 June 2011, 07:35:31 AM »
That is a very nice hook and seems to last for some time! I note that is reflectivity but is there also doppler there?

Question in regards to that region: is there a persistent east - west boundary that naturally sets up in specific conditions?

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Jimmy Deguara
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Offline nzstorm

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Re: NZ tornadoes New Plymouth
« Reply #3 on: 22 June 2011, 02:32:02 PM »
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.
Steven Williams
Storm Chaser