Record warmth at the top of the Greenland Ice Sheet

By: Dr. Jeff Masters , 9:25 PM GMT on July 18, 2012

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The coldest place in Greenland, and often the entire Northern Hemisphere, is commonly the Summit Station. Located at the top of the Greenland Ice Sheet, 10,551 feet (3216 meters) above sea level, and 415 miles (670 km) north of the Arctic Circle, Summit rarely sees temperatures that rise above the freezing mark. In the 12-year span 2000 - 2011, Summit temperatures rose above freezing only four times, according to weather records researcher Maximiliano Herrera. But remarkably, over the past week, temperatures at Summit have eclipsed the freezing mark on five days, including four days in a row from July 11 - 14. There are actually three weather stations located at the location--Summit, Summit-US, and Summit AWS. The highest reliable temperature measured at any of the three stations is now the 3.6°C (38.5°F) measured on Monday, July 16, 2012 at Summit-US. A 4.4°C reading at Summit in May, 2010 is bogus, as can be seen by looking at the adjacent station. Similarly, a 3.3°C reading from June 2004 is also bad. Records at Summit began in 1987.


Video 1. A 20-ton tractor attempting to repair a bridge washed out by the raging Watson River on July 11, 2012 in Kangerlussauaq, Greenland gets washed downstream. The driver escaped unharmed. Image taken from an article, Warm air over the ice sheet provides great drama in Greenland, at the Danish Meteorological Institute's web site.

Record heat leads to major flooding in Greenland
The record heat has triggered significant melting of Greenland's Ice Sheet. According to the Arctic Sea Ice Blog, on July 11, glacier melt water from the Russell Glacier flooded the Watson River, smashing two bridges connecting the north and south of Kangerlussuaq (Sønder Strømfjord), a small settlement in southwestern Greenland. The flow rate of 3.5 million liters/sec was almost double the previous record flow rate. The latest forecast for Summit calls for cooler conditions over the coming week, with no more above-freezing temperatures at Summit.

Another huge iceberg calves off of Greenland's Petermann Glacier
A massive ice island two times the size of Manhattan and half as thick as the Empire State Building calved off of Greenland's Petermann Glacier on Monday, July 16, 2012. According to Andreas Muenchow, associate professor of physical ocean science and engineering at the University of Delaware's College of Earth, Ocean, and Environment in his Icy Seas blog, the break-off point has been visible for at least 8 years in satellite imagery, and has been propagating at 1 km/year towards Nares Strait. The same glacier calved an iceberg twice as big back on August 4, 2010--the largest iceberg observed in the Arctic since 1962. The freshwater stored in that ice island could have kept the Delaware or Hudson rivers flowing for more than two years, or kept all U.S. public tap water flowing for 120 days. “While the size is not as spectacular as it was in 2010, the fact that it follows so closely to the 2010 event brings the glacier’s terminus to a location where it has not been for at least 150 years,” Muenchow said in a university press release. “Northwest Greenland and northeast Canada are warming more than five times faster than the rest of the world, but the observed warming is not proof that the diminishing ice shelf is caused by this, because air temperatures have little effect on this glacier; ocean temperatures do, and our ocean temperature time series are only five to eight years long — too short to establish a robust warming signal.”


Figure 1. The calving of a massive 46 square-mile iceberg two times the size of Manhattan from Greenland's Petermann Glacier on July 14 - 18, 2012, as seen using MODIS satellite imagery. Image credit: NASA.


Figure 2. Look familiar? Two years ago, a 100 square-mile ice island broke off the Petermann Glacier. It was the largest iceberg in the Arctic since 1962. Image taken by NASA's Aqua satellite on August 21, 2010. Image credit: NASA. I've constructed a 7-frame satellite animation available here that shows the calving and break-up of the Petermann Glacier ice island. The animation begins on August 5, 2010, and ends on September 21, with images spaced about 8 days apart. The images were taken by NASA's Aqua and Terra satellites.

Related posts

Unprecedented May heat in Greenland; update on 2011 Greenland ice melt

Greenland update for 2010: record melting and a massive calving event

Jeff Masters

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I heard there were non tropical lows with pressures of 910mb but I will see if I can find a source
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Quoting JerseyCapewxguy:
1. it was all man induced like most of the usual suspects think

There it is again.

Some humble advice to the skeptics: You cannot expect others to see your point of view when you habitually misstate theirs.
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Quoting bluheelrtx:
Post numbers are more meaningful than pages. I presently only have six pages in my view.


post 425
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Quoting Ftmyersstorm1:
I have had it with this global warming talk!! The scientist that choose this can not and will not deal with the fact that the sun is getting hotter because of the approach of the 13th planet. No one talked about the fact the the other planets are warming just as fast!! Gee people must be warming those planets too. Wow! Because I have a degree and was taught by the same proffessor as the other knuckle heads were about the global warming lie. Also if the government would stop spraying aluminum in the air with chem trails which acts like aluminum foil over a hot dish which keeps the hot air in maybe that would help! Oh that's a conspiracy! Cant talk about that can we. Scary. Yes they are playing God. And we are all gonna reap the whirlwing. Good bye!!



If it is true that the other planets are also warming at a similar rate, then thats a pretty good indicator that all the "man-made" aspect of the global warming is just bunk. I have never disputed that the earth was heating up, I was just one that wasn't ready to jump to the conclusion that 1. it was all man induced like most of the usual suspects think, and 2. I am one that realizes if it is warming, there really isn't a darn thing we can do about it. I think its a good idea to try and create a healthier planet by reducing chemicals that go into the air, but by no means do I think it is going to alter the current warming if/ when we do reduce them, especially given the data about the other planets also warming.
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Quoting JerseyCapewxguy:


... poster showed on the post on page 9 ...
Post numbers are more meaningful than pages. I presently only have six pages in my view.
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Quoting divingpyrate:
Nice little read
http://www.forbes.com/sites/timworstall/2012/07/1 9/the-cheap-way-to-deal-with-climate-change-iron-f ertilisation-of-the-oceans/

frankly I do not think it is a good idea.
We dump enough stuff in the ocean already.

As an avid scuba diver, and marine aquarium owner this seems risky.

schistkicker you are very naive if you dont think this issue is being politicized.

Come on, be real.
And on the subject of volcanoes and sun cycles, you could find the science if you wanted to.
it is out there.



You're right, the science IS out there-- and the hypothesis that the variations we're observing are due to solar cycles and volcanic activity has been tested and rejected. Repeatedly.

And I wasn't aware that datapoints, themselves, had a liberal or conservative bias...
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Quoting divingpyrate:
And the two sides arguing about it muddy up the true scientific discussion by insisting it is ALL man made.

This is my real problem with the debate right now - people either misunderstanding or outright lying and using hyperbole to make their position seem more reasonable. No AGW proponent has claimed or even suggested that the warming is ALL man made. It's statistically impossible to back up such a claim with the data available. All that's claimed is that humans are a significant contributing factor in the modern temperature increase.
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Quoting wxgeek723:


936mb.


well then if 936 millibars is the record low pressure for a cold core system, then that 921 MB low near Antarctica that the other poster showed on the post on page 9, shattered that record.
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Quoting schistkicker:


Politics? Who brings politics to the plate? The data itself is apolitical; it is what it is. Where politics come into play is when it comes time to determine policy responses to the changing trends. That's an appropriate place for disagreement and difference. Unfortunately, there's a huge interest in denying the data and obfuscating the actual scientific record and the implications driven by the data alone (see, for example, the recent NC coastal flood map debacle)-- that's not appropriate. If people and their leaders want to stand with their fingers in their ears and their eyes shut, that's their business...but they shouldn't expect that this approach grants them equal voice and equal footing with the folks who actually are collecting and examining the data and basing their viewpoints off of careful, reasoned analysis of same.

In short, I think it would be awesome if we could have this debate framed only on what the data are, and could keep politics out of it entirely.


As an aside, what variations in volcanic or solar activity explain the observed patterns of global temperatures?
things can change in a blink of an eye
Member Since: July 15, 2006 Posts: 176 Comments: 55665
Nice little read
http://www.forbes.com/sites/timworstall/2012/07/1 9/the-cheap-way-to-deal-with-climate-change-iron-f ertilisation-of-the-oceans/

frankly I do not think it is a good idea.
We dump enough stuff in the ocean already.

As an avid scuba diver, and marine aquarium owner this seems risky.

schistkicker you are very naive if you dont think this issue is being politicized.

Come on, be real.
And on the subject of volcanoes and sun cycles, you could find the science if you wanted to.
it is out there.
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US policymakers brace for potential 'collapse' in Syria


"The violence there has only gotten worse, and the loss of lives has only increased," Panetta said, "which tells us that this is a situation that is rapidly spinning out of control."
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IT is time for something interesting to form in the allantic so that debate on GW could be put on the back burner and the blog utilised for the purposes for it was created. such boring stuff that GW debate
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little.spin.just.southeast.of.patillas.p.rico
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Quoting divingpyrate:


The climate change crowd could gain more support if they would move away from the political influences and debate the issue on merit. can you draw a correlation between co2 levels and what we are seeing? Sure, but there are also natural causes. Volcanic activity, sun cycles, etc etc.



Politics? Who brings politics to the plate? The data itself is apolitical; it is what it is. Where politics come into play is when it comes time to determine policy responses to the changing trends. That's an appropriate place for disagreement and difference. Unfortunately, there's a huge interest in denying the data and obfuscating the actual scientific record and the implications driven by the data alone (see, for example, the recent NC coastal flood map debacle)-- that's not appropriate. If people and their leaders want to stand with their fingers in their ears and their eyes shut, that's their business...but they shouldn't expect that this approach grants them equal voice and equal footing with the folks who actually are collecting and examining the data and basing their viewpoints off of careful, reasoned analysis of same.

In short, I think it would be awesome if we could have this debate framed only on what the data are, and could keep politics out of it entirely.


As an aside, what variations in volcanic or solar activity explain the observed patterns of global temperatures?
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all right im off to dc, no thanks to ta13 for tempting me to look up slenderman and the slender game.

now ill have nightmares
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Quoting wxchaser97:

In the discussion it says outlooks this far out are not uncommon. I hope I stay in the severe risk area.
Possibly if you re-read that, you'll see the "uncommon" refers to the 200-mile error factor. That's the way I read it. Delineation of a Day 8 severe risk area, well, I'd call it uncommon. In this case, looks like it flows from the Day 7 risk area - also uncommon in my experience.

Quoting StormTracker2K:

Also talk about AMAZING this tornado was in Saskatchewan, Canada.




This is where Saskatchewan is located folks. 10 more years then we will be hearing about tornadoes in Alaska at the pace were going.
I could be mistaken, but sounds like you are saying a tornado in Sask. is new or unusual. If we are to believe (add: this...)
Doesn't seem to be anything new or unusual about tornadoes in Saskatchewan according to Wikipedia's excellent article about Canadian tornadoes and tornado outbreaks...

"Of all the provinces, Ontario, Alberta, Manitoba and Saskatchewan average the most tornadoes per season, around 15, followed by Quebec with less than 10. New Brunswick and the interior of British Columbia are also recognized tornado zones. All other province and territories have significantly less threat from tornadoes. The peak season in Canada is in the summer months when clashing air masses move north, as opposed to the spring season in the United States southern-central plains, although tornadoes in Canada have occurred in spring, fall and very rarely winter."

Also mentions Canada's most deadly tornado occurred in Saskatchewan in 1912. When looking at tornado occurrence, we need to keep in mind increased population means increased reporting. Better radar over the years aids in ID-ing tors that in the past may have gone unreported.

Balancing act.

(T-62)
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8 Day GFS precip accum.
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Petermann Ice Island (3 mi long)

off the coast of Newfoundland/Labrador in 2011

Youtube Video
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Quoting SFLWeatherman:
Sunday
Overcast with a chance of a thunderstorm and rain. High of 91F with a heat index of 102F. Breezy. Winds from the ESE at 10 to 20 mph. Chance of rain 70%


Yeah Sunday, Monday, and Tuesday look very wet across FL. Could be several inches of rain across some areas of C & S FL.

Sunday


Monday


Tuesday
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lol
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Quoting aislinnpaps:


Nea,
I don't mind the posts about GW when they are informed and educational, but some preach it and try to force it down everyone's throat. There's a big difference. There are some I will read, but it depends on the author, others when I see who the author is, I skip it. I may be missing good information, but I don't want the preaching. As I said, big difference.


I actually enjoy true debate on the subject.
But you will rarely find that here.

Here if you do not insist man is destroying the planet you are just a troll.
There is just as much science that indicates the warming is part of a larger cycle we do not understand. But no one wants to discuss that. just want to push wind power and electric cars as the solution.

If everyone in the US stopped driving cars today, the rest of the world will not.
So then what.

No one has found an economical replacement for fossil fuels yet. When they do I will be the first to jump on board. Fusion is getting close, and will be a great step forward. But to think wind mills and solar panels are going to stop climate change is just crazy.

It wont.

Ask Solindra, i just heard this morning, that chevy dealers are facilitating a buy and sell promotion on the chevy volt. Apparently you can buy one of these fire traps, and get your 7500 dollar tax credit, then turn right around and sell the car back to the dealer.

And it is all legal.

Good example of politics and government using what needs to be an important discussion for political reasons and shutting down true debate.
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Sunday
Overcast with a chance of a thunderstorm and rain. High of 91F with a heat index of 102F. Breezy. Winds from the ESE at 10 to 20 mph. Chance of rain 70%
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507. DougL
Recent Albedo from Greenland shows that the surface melt is going off the charts

Link
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Quoting Neapolitan:
Not sure what you mean by "forcing it" onto people. Dr. Masters on occasion writes about climate change; some forum members on occasion comment about it. But no one is "forcing" anyone else to do anything. Read about it, or don't read about it; the choice is entirely up to you. And the same obviously goes for everyone else here.

The thing is, though, climate change is a huge issue with long-term, far-reaching implications for everyone on the planet, and everyone yet to be born. Given that importance, it seems that demanding people stop discussing it--especially in a climate/weather forum--is every bit as wrong as demanding people read about it.


Nea,
I don't mind the posts about GW when they are informed and educational, but some preach it and try to force it down everyone's throat. There's a big difference. There are some I will read, but it depends on the author, others when I see who the author is, I skip it. I may be missing good information, but I don't want the preaching. As I said, big difference.
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Quoting jrweatherman:
"We have data for 150 years and we see changes that we have not seen before."

150 years of data? And how old is our planet? Probably has happened 100 times before over the last 5-10 billion years.



Exactly
If you read this blog though, you would think the world is collapsing all around us.
Now I do believe we are warming as a planet.
And the two sides arguing about it muddy up the true scientific discussion by insisting it is ALL man made.

The climate change crowd could gain more support if they would move away from the political influences and debate the issue on merit. can you draw a correlation between co2 levels and what we are seeing? Sure, but there are also natural causes. Volcanic activity, sun cycles, etc etc.

This is more complex than fossil fuels.

Also I can remember if it was two or three years ago, but Texas and other parts of the country had record cold in June -July. Where was all the panic then?
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I didn't think I'd need my tinfoil hat here, but ok, if you insist...

Quoting Ftmyersstorm1:
I have had it with this global warming talk!! The scientist that choose this can not and will not deal with the fact that the sun is getting hotter because of the approach of the 13th planet. No one talked about the fact the the other planets are warming just as fast!! Gee people must be warming those planets too. Wow! Because I have a degree and was taught by the same proffessor as the other knuckle heads were about the global warming lie. Also if the government would stop spraying aluminum in the air with chem trails which acts like aluminum foil over a hot dish which keeps the hot air in maybe that would help! Oh that's a conspiracy! Cant talk about that can we. Scary. Yes they are playing God. And we are all gonna reap the whirlwing. Good bye!!

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GW day on the blog? No worries...I have an appointment to go get my nails pulled out..should be much more fun than this...lol!

Have fun!
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Quoting Bluestorm5:


Will the temperature return to Industrial Revolution levels or they will keep rising until we do something about it? I am deeply concerned about the future as I'm 17 years old :\
Good morning all. I am a bit late in this conversation but I could not pass this comment by without putting my two cents into the fray. Because our "leaders" won't act, I think it is time for the old "flower children" and hippies like me to help the young people like Bluestorm5 start protesting and demanding some action. We did it for the pollution of the air and water. Earthday was started and has survived. You can even swim in Lake Erie again I hear. The rivers aren't on fire. What is it going to take to wake up our leaders to do something, even if it is to just acknowledge that we have a big problem on our hands. I am like kmanislander who lives very close to sea level. In fact you could transplant me onto Grand Cayman and it would feel and look like the Keys. So when the Caymans go, so do the Keys. Maybe it is too late. I thought so back in the day, but things did improve. All I can say is God help humanity!
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501. Skyepony (Mod)
GEOS-5 has an interesting run started on the African wave. 00Z is ~75hrs out at the moment. Splits that wave in the central Atlantic, sucking 1/2 or more of it back to Africa into the one gathering there now. That one moves slow to the west, still not in the Atlantic by the end of the run.


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Also on NC State weather site..

Tropical cyclones affecting North Carolina usually take one of three tracks:

* Coastal Track: Largest threats are high winds and coastal flooding from storm surge
* Inland Track: Usually causes nearly statewide damage from flooding and high winds
* Gulf Track: Mostly likely to cause flooding in the mountains

Member Since: August 19, 2006 Posts: 13 Comments: 16215
HEAT INDICES 100 TO 105 MOST OF SOUTH FLORIDA THIS AFTERNOON
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Quoting Ftmyersstorm1:
I have had it with this global warming talk!! The scientist that choose this can not and will not deal with the fact that the sun is getting hotter because of the approach of the 13th planet. No one talked about the fact the the other planets are warming just as fast!! Gee people must be warming those planets too. Wow! Because I have a degree and was taught by the same proffessor as the other knuckle heads were about the global warming lie. Also if the government would stop spraying aluminum in the air with chem trails which acts like aluminum foil over a hot dish which keeps the hot air in maybe that would help! Oh that's a conspiracy! Cant talk about that can we. Scary. Yes they are playing God. And we are all gonna reap the whirlwing. Good bye!!



Wow, in the same post you first deny that humans are part of the cause of global warming and then later give a great example of how we are contributing to it. You must have had a confusing childhood or something.
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Found this on NC State weather site..we actually have a chart as well..

Member Since: August 19, 2006 Posts: 13 Comments: 16215
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Good Morning. What a difference a day makes. Tropical Atlantic has cleared out, dust and dry air has overtaken the moisture surge, and that ULL over the GA-South Carolina border I was looking at yesterday dried out. It has not budged however and looks like a black hole.

Link

July climatology rules at the moment in the Tropical Atlantic.
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Quoting aislinnpaps:
I am not saying anything about Global Warming, but I really do hate anything when it's shoved nonstop at me. Especially when there is a seperate blog where it is the main topic. Informed information, educated debates are fine, but the more you force it onto people the more people you will lose. I have stopped reading even the good informational posts because I don't want to be preached at as some do. My vent is over.
Not sure what you mean by "forcing it" onto people. Dr. Masters on occasion writes about climate change; some forum members on occasion comment about it. But no one is "forcing" anyone else to do anything. Read about it, or don't read about it; the choice is entirely up to you. And the same obviously goes for everyone else here.

The thing is, though, climate change is a huge issue with long-term, far-reaching implications for everyone on the planet, and everyone yet to be born. Given that importance, it seems that demanding people stop discussing it--especially in a climate/weather forum--is every bit as wrong as demanding people read about it.
Member Since: November 8, 2009 Posts: 4 Comments: 13743
I have had it with this global warming talk!! The scientist that choose this can not and will not deal with the fact that the sun is getting hotter because of the approach of the 13th planet. No one talked about the fact the the other planets are warming just as fast!! Gee people must be warming those planets too. Wow! Because I have a degree and was taught by the same proffessor as the other knuckle heads were about the global warming lie. Also if the government would stop spraying aluminum in the air with chem trails which acts like aluminum foil over a hot dish which keeps the hot air in maybe that would help! Oh that's a conspiracy! Cant talk about that can we. Scary. Yes they are playing God. And we are all gonna reap the whirlwing. Good bye!!

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BBC:
http://www.bbc.co.uk/news/science-environment-189 01068
Carefully worded article about the Petermann Glacier.
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We all have heard about Global warming,,or natural climate change,,,please,,no more preaching!!! How about a blog about major storms of the past,,,or a feature on the Hurricane Hunters,,,or something.....
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I am not saying anything about Global Warming, but I really do hate anything when it's shoved nonstop at me. Especially when there is a seperate blog where it is the main topic. Informed information, educated debates are fine, but the more you force it onto people the more people you will lose. I have stopped reading even the good informational posts because I don't want to be preached at as some do. My vent is over.

Another hot day with possible t-storms this afternoon. I'm off to Houston this time for the dog show. Hope all have a great day.
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Quoting jrweatherman:
"We have data for 150 years and we see changes that we have not seen before."

150 years of data? And how old is our planet? Probably has happened 100 times before over the last 5-10 billion years.




We have _plenty_ of other data sources, other than what a human directly observes from a well-placed thermometer, that allow us to know about climate conditions during much of the Earth's history, let alone prior to 150 years ago...
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Quoting StormTracker2K:
I hope people realize that Global Warming is FACT! There is record heat happening all over the Globe right now and I'm affraid that these weather patterns are only going to get more extreme over the coming years.

Also talk about AMAZING this tornado was in Saskatchewan, Canada.




This is where Saskatchewan is located folks. 10 more years then we will be hearing about tornadoes in Alaska at the pace were going.
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Anything that gets into the Caribbean will get shredded. Some impressive wind shear across the Caribbean.

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In the U.S., there have been 2,410 daily high temperature records broken this month, and just 96 daily low temperature records broken, a fairly lopsided ratio of better than 25 to 1. (For 2012 as a whole, that ratio is a more even but still lopsided 18,831 to 1,610, or 11.7 to 1.):

hot

So far as all U.S. records, 2012 has seen 45,908 record high or high minimum temperature records set or tied this year, vs. the 6,632 record low or low maximum records that have been set or tied, a 6.92 to 1 ratio:

hot

We are currently in the 29th calendar week of 2012. 27 of those weeks have seen a majority of high temperature records set or tied. Just two have seen a majority of low temperature records:

hot
Member Since: November 8, 2009 Posts: 4 Comments: 13743
that is one big area of vorticity

Member Since: August 19, 2006 Posts: 13 Comments: 16215
Intense tropical wave passed over Dominica and rest of Lesser Antilles during the night now moving into the Caribbean Sea. Heavy rain and thunderstorms. Streams on more mountainous islands overflowing and some landslides.

As the system enters the Caribbean, the west coasts of the islands are beginning to experience above normal sea swells. We will see if it intensifies now that its through the island chain.
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Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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