Thursday, June 28, 2007

Number of Tornadoes decreasing?

Surely not! Surely the National Climate Data Centre, the National Oceanic and Atmospheric Administration and Global Climate Monitoring got it all wrong!

This graph below can't be true, can it?


Peter said...

sorry - why not?

Jonathan Lowe said...

Well maybe Al Gore is wrong...that will be a first!

philip said...

Tornadoes are caused by the temperature/density difference between cold dry air from the north and warm moist air from the south.

Tornadoes typically occur when a fast moving cold front over-rides the warm air ahead of it.

So, contrary to what you might think, decreasing tornado intensity is good evidence for climate warming. Although it gives lie to the ridiculous IPCC claims of climate catastrophy from warming. Most of the consequences (were they to occur) would be beneficial like this example.

John Nicklin said...

Actually, there are more tornadoes being detected. Over a 1000 in 2004 but very few reach dangerous levels. Its an artifact of better technology. Now every dust-devil is caught on radar.

Now if decreasing tornado intensity is a sign of GW then why is increasing hurricane strength also an indicator of GW.

John Nicklin said...

You might also find this interesting;

John Nicklin said...

well that didn't work out.

Try this link

If it works, its a chart of the deadliest tornadoes in the USA. Its very enlightning.