[net-gold] WEATHER : SCIENCE : ENVIRONMENT: GLOBAL WARMING AND CLIMATE CHANGE: Weather Extremes Tied to Jet Stream Changes

  • From: "David P. Dillard" <jwne@xxxxxxxxxx>
  • To: Net-Gold -- Educator Gold <Educator-Gold@xxxxxxxxxxxxxxx>, net-gold@xxxxxxxxxxxxx, Net-Gold <Net-Gold@xxxxxxxxxxxxxxx>, NetGold <netgold@xxxxxxxxxxxxxxx>, K-12ADMINLIFE <K12ADMIN@xxxxxxxxxxxxxxxxxxx>, K12AdminLIFE <K12AdminLIFE@xxxxxxxxxxxxxxx>, MediaMentor <mediamentor@xxxxxxxxxxxxxxx>, Nabble Groups Net-Gold <ml-node+s3172864n3172864h56@xxxxxxxxxxxxx>, Net-Platinum <net-platinum@xxxxxxxxxxxxxxx>, Sean Grigsby <myarchives1@xxxxxxxxxxxxxxx>, Net-Gold <NetGold_general@xxxxxxxxxxxxxxxxx>, Temple Gold Discussion Group <TEMPLE-GOLD@xxxxxxxxxxxxxxxxxxx>, Temple University Net-Gold Archive <net-gold@xxxxxxxxxxxxxxxxxxx>, "Net-Gold @ Wiggio.com" <netgold@xxxxxxxxxxxxxx>, Health Lists -- Health Diet Fitness Recreation Sports <healthrecsport@xxxxxxxxxxxxxxx>, HEALTH-RECREATION-SPORTS-TOURISM@xxxxxxxxxxxxxxxxxxx
  • Date: Sun, 16 Feb 2014 20:24:46 -0500 (EST)



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WEATHER :

SCIENCE :

ENVIRONMENT: GLOBAL WARMING AND CLIMATE CHANGE:

Weather Extremes Tied to Jet Stream Changes

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Weather Extremes Tied to Jet Stream Changes

By: Seth Borenstein

Published: June 25, 2013

Wunderground.com

http://www.wunderground.com/news/
heat-wave-alaska-jet-stream-may-be-blame-20130625

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A shorter URL for the above link:

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http://tinyurl.com/nuf6yan

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WASHINGTON -- The jet stream, the river of air high above Earth that generally dictates the weather, usually rushes rapidly from west to east in a mostly straight direction.

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But lately it seems to be wobbling and weaving like a drunken driver, wreaking havoc as it goes.

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The more the jet stream undulates north and south, the more changeable and extreme the weather.

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The most recent example occurred in mid-June when some towns in Alaska hit record highs. McGrath, Alaska, recorded an all-time high of 94 degrees on June 17. A few weeks earlier, the same spot was 15 degrees, the coldest recorded for so late in the year.

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You can blame the heat wave on a large northward bulge in the jet stream, Rutgers University climate scientist Jennifer Francis said.

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Several scientists are blaming weather whiplash - both high and low extremes - on a jet stream that's not quite playing by its old rules. It's a relatively new phenomenon that experts are still trying to understand.

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Some say it's related to global warming, but others say it's not.

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Upside-down weather also happened in May: Early California wildfires fueled by heat contrasted with more than a foot of snow in Minnesota. Seattle was the hottest spot in the nation one day, and Maine and Edmonton, Canada, were warmer than Miami and Phoenix.

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Consider these unusual occurrences over the past few years:

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- The winter of 2011-12 seemed to disappear, with little snow and record warmth in March. That was followed by the winter of 2012-13 when nor'easters seemed to queue up to strike the same coastal areas repeatedly.

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- Superstorm Sandy took an odd left turn in October from the Atlantic straight into New Jersey, something that happens once every 700 years or so.

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- One 12-month period had a record number of tornadoes. That was followed by 12 months that set a record for lack of tornadoes.

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The complete article may be read at the URL above.

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