The Misbehaving Jet Stream

NOT A LOT OF PEOPLE KNOW THAT

By Paul Homewood

 

image

http://earth.columbia.edu/articles/view/3122

 

Scientists from Columbia University believe that global warming will cause the mid latitude jet stream to move northwards.

 

Meanwhile, this winter, the jet stream has moved decidedly south of where it normally would be, bringing unusually wet weather to southern England.

 

Jetstream Forecast

http://www.netweather.tv/index.cgi?action=jetstream;sess=

 

And as the Met Office explain, the jet stream marks the border, where cold Arctic air meets warm tropical air. In winter, the jet stream tends to move south from its summer position, as the colder Arctic air dominates.

 

 

This BBC video also explains how the jet stream has been “really powerful this winter driven by the strong temperature contrast…..the stronger the jet, the stronger the areas of low pressure”

 

image

http://www.bbc.co.uk/weather/features/26092170

 

All of this points to the fact it is a cold Arctic air which is fuelling the jet stream , and pushing it…

View original post 17 more words

Julia Slingo: Shark jumping in the winter storms.

Tallbloke's Talkshop

josh-slingoClimate Change is a key factor in the storms that have battered parts of Britain this winter, according to the Met Office’s chief scientist, who also warned that the country should prepare itself for similar events in the future.

 

Dame Julia Slingo said while there was not yet “definitive proof”, “all the evidence” pointed to Climate Change, and suggested that detecting when and how storms develop would become increasingly important.

According to new analysis from the Met Office, persistent rainfall over Indonesia and the tropical West Pacific triggered a global weather system that included the severe storms that have flooded thousands of homes in Britain, as well as the exceptionally cold weather in North America.

“In a nutshell, while there is no definitive answer for the current weather patterns that we have seen, all the evidence suggests that climate change has a role to play in it,” Dame Julia…

View original post 55 more words

Black Swans? Dispatches from the front line of climate change.

Watts Up With That?

Guest essay by Tony Brown

The sun was warm and the wind a friendly zephyr as we enjoyed coffee and a cake on Dawlish sea front. A place known to millions of British holidaymakers as a pretty, if rather faded, seaside resort

Black swans –a symbol of the town-and perhaps a metaphor of this time and place*- glided serenely by, whilst the first daffodils showed their faces to the sun.

Just across the road, Brunel’s railway from Paddington to the far west of Britain at Penzance hugs the coast of scenic South Devon. At Dawlish it picturesquely threads it way through a series of tunnels along the amber coast of red sandstone in one of the most spectacular train rides in Britain. 

View original post 1,304 more words