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The Misbehaving Jet Stream

February 8, 2014

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 south.

Junk scientists will try and tell you it is because of “melting Arctic ice”.

 

http://arctic.atmos.uiuc.edu/cryosphere/NEWIMAGES/arctic.seaice.color.000.png

http://arctic.atmos.uiuc.edu/cryosphere/NEWIMAGES/arctic.seaice.color.000.png

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7 Comments leave one →
  1. Andy DC permalink
    February 8, 2014 2:46 pm

    That is an enormous area of snow and ice over the Northern Hemisphere. Not exactly what alarmists had predicted.

  2. February 8, 2014 4:26 pm

    I brought attention to the significance of jet stream shifts in 2008:

    “If jet streams, on average, are further south then the high pressure systems to the north of them predominate and the globe is cooling. If, on average, they are further north then high pressure to the south of them predominates and the globe is warming.”

    http://www.newclimatemodel.com/weather-is-the-key-after-all/

  3. John F. Hultquist permalink
    February 8, 2014 4:50 pm

    A sad period! A big hit to individuals and the Nation. Flooding there looks very bad and some folks will likely never get back into the houses. Not that it will help but the weather pattern is about to shift. On Monday, here on the west edge of North America (Washington State & British Columbia) the large scale pattern will transition to a very fast zonal flow. Looks like the UK will have a shift to more southerly flow and lower wind speed by this coming Wednesday into Thursday. A lot less rain by Saturday.

    Friday evening, I spent an hour or more looking at photos and reading about the flooding in the Moorlands and elsewhere. The dangling train rails at the collapsed stone wall at Dawlish made the news also. Two sites with photos:

    http://www.dailymail.co.uk/news/article-2552027/Britains-coastline-battered-storms-hurricane-force-winds-sweep-Atlantic.html

    In the next one, photo #7 shows one of the houses on a slight rise as the try to build an embankment around it.

    http://news.uk.msn.com/in-pictures/uk-floods-in-pictures#image=7

    Here in North America such scenes are common along the Red River of the North as it flows northward into Canada. The area is very flat and when deep snow melts rapidly there will be flooding. Rain and wind such as now impacting Great Britain are different but one’s house is still ruined. This site has photos to show the transition between no-flood and flood. Just click the image.

    http://minnesota.publicradio.org/collections/special/2013/floods/before-after-flood/

    I find such before and after photos a good way to express the danger for anyone not having seen such things.
    ————————————-
    And speaking of images: The BBC rendition of the jet stream (your next-to-last image) shows a white streak coming from Honduras or some such place. The second image (bright yellow and red) is the real thing.

    “As humans continue to heat the planet, . . . ”

    They just make this crap up as they go along.

  4. February 8, 2014 5:57 pm

    They are low on the speed of the Jet Stream. They say “Jet streams can fluctuate in strength between 100-200mph”. There is a jet stream over the Atlantic right now of 200 Kts and there have been several this winter of more than that.

    https://flightplanning.navcanada.ca/Latest/anglais/Latest00-est-e.html

  5. February 9, 2014 3:27 pm

    Reblogged this on CraigM350.

Trackbacks

  1. The Misbehaving Jet Stream | The Global Warming Policy Foundation (GWPF)
  2. Weekly Climate and Energy News Roundup | Watts Up With That?

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