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US: Record setting hurricanes at an all time low

key-west-81664_1920-1140x500By Paul McGowan From The Carbon Wars

There’s perhaps some good news on weather, for a change—hopefully it is not the calm before….

The U.S. is experiencing a remarkable, record drought from hurricane hits, with only four strikes in the past seven years. That’s the fewest in any 7-year stretch since records began a few years before Abraham Lincoln was elected president.

One of the only comparably quiet eras occurred in the late 1970s through the early 1980s, according to meteorologist Neal Dorst of the Atlantic Oceanographic and Meteorological Laboratory.

The record quiet streak comes on the heels of what was among the most active seven years on record. From 2002-2008, 18 hurricanes hit the U.S., tied for the most in a seven-year stretch.

The four hurricanes to hit the U.S. since Ike in 2008 were Irene in 2011, Isaac in 2012, Sandy in 2012 and Arthur in 2014. Sandy was technically a “post-tropical cyclone” at landfall. Accurate records for U.S. hurricane strikes go back to 1851.

In addition, the nation is also in a 11-year record streak with no strike from a major hurricane, defined as a Category 3, 4 or 5. The last such storm to meet that criteria was Hurricane Wilma, with 120-mph winds that battered Florida and killed 35 people nearly 11 years ago on Oct. 24, 2005.

While luck plays a major role in the dearth of hurricane hits, there’s also a meteorological reason behind the trend.

Phil Klotzbach of Colorado State University said that for much of the past 10 years, an area of low atmospheric pressure known as a trough set up over the U.S. East Coast during the prime hurricane months of August to October, helping steer the storms away from the coast and out to sea.

“It’s hard to say which percentage is which, but definitely both luck and steering currents have played a role,” he added.

Boulder Colorado’s NOAA said it is premature to say whether global warming is causing any detectable changes in Atlantic hurricane activity. If El Ninos grow stronger or more frequent, as some studies suggest could happen as a result of climate change, that could decrease hurricane activity in the Atlantic while boosting it in the Pacific, Klotzbach said.

For more on this story go to: http://www.thecarbonwars.com/record-setting-hurricanes-from-warming/

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