The Quack Shack

[WannaBeHillBilly]

Hurricanes are massive systems of low pressure, thus circulating counter clock wise. The develop over water and move inland. I believe the winds must be over 65mph, but I could be off on that because 39 sticks in my brain too, but no idea why. Depending on wind speeds they are either tropical storms or hurricanes.

Tornadoes develop on land, again low pressure areas but much smaller than a hurricane. Strong Updraft and wind speeds 65+

Weather-dork is speaking up!
Agree with everything, except the clockwise rotation: There were some rare hurricanes in the South-Atlantic that were rotating clockwise, like Hurricane Catarina:

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Low pressure systems rotate counter-clockwise on the northern and clockwise on the southern hemisphere. And vice versa for High-Pressure systems.

 

[duluthralphie]

Weather-dork is speaking up!
Agree with everything, except the clockwise rotation: There were some rare hurricanes in the South-Atlantic that were rotating clockwise, like Hurricane Catarina:

View attachment 2439516
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Low pressure systems rotate counter-clockwise on the northern and clockwise on the southern hemisphere. And vice versa for High-Pressure systems.

There are rare exceptions, but I did not think it would be worth the effort explaining them, because they are pretty freaking rare.

 

[duluthralphie]

Come on @WannaBeHillBilly the reason they spin occasionally clockwise is so easy.. explain it.

 

[WannaBeHillBilly]

Come on @WannaBeHillBilly the reason they spin occasionally clockwise is so easy.. explain it.

Too late in the evening! Weather dork has to get up at 7:30 tomorrow, so here is the explanation from Wikipedia: Coriolis Force.

 

[duluthralphie]

Too late in the evening! Weather dork has to get up at 7:30 tomorrow, so here is the explanation from Wikipedia: Coriolis Force.

A quick scan shows that correct. But it doesn’t answer the “backwards” spinning ones.

 

[Muscovy Wunda]

The wind speeds interesting. Where they did measure wind (50km away from worst damage) it was 126km/h which is like 76miles?

 

[rjohns39]

Good morning folks Good evening Wunda & Kiwi

 

[igorsMistress]

Good morning/evening all!

 

[rjohns39]

Good morning/evening all!

Good morning IM, have a great day

 

[WannaBeHillBilly]

Good Morning, Day, Afternoon, Evening or Night everybody!