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This has primarily been due to what is called the Arctic Oscillation, and its regional subset the North Atlantic Oscillation. These are large-scale features of the atmosphere that dictate how atmospheric mass is distributed across the northern part of the Northern Hemisphere. Both of these oscillations have been strongly (record-breaking, even) in their negative modality, and as a consequence there is a strong meridional (north-south) component to the atmospheric flow. This means there is a lot of transport of air from the low to high latitudes in some parts of the world, while it is vice versa in others.
In the negative mode there tends to be a strong ridge of high pressure situated around Greenland, which pulls a lot of air from further south over the Atlantic up through the North Atlantic, including Greenland and Iceland. Conversely, a strong trough gets locked into place both downstream and upstream, i.e., over eastern North America and Western Europe, bringing Arctic air down and holding it in place. This "blocking" ridge over Greenland keeps the trough to the west from making its usual easterly progression. Furthermore, when the Arctic Oscillation is so strongly negative, it tends to reinforce itself and rebound to the negative phase when the atmosphere tries to balance itself out.
There are a few other teleconnections and forcings that play a role in this, but they are not quite as significant. This past month, all of them lined up nearly perfectly to provide for cold and, at times, snow conditions for parts of eastern North America and Europe.
What else can I help you with?
What was the weather on November 13 2000?
Around the world there would have been a wide variety of weather, from hot to cold, dry to wet, calm to stormy and so on. So there is no single answer to the question.Around the world there would have been a wide variety of weather, from hot to cold, dry to wet, calm to stormy and so on. So there is no single answer to the question.Around the world there would have been a wide variety of weather, from hot to cold, dry to wet, calm to stormy and so on. So there is no single answer to the question.Around the world there would have been a wide variety of weather, from hot to cold, dry to wet, calm to stormy and so on. So there is no single answer to the question.Around the world there would have been a wide variety of weather, from hot to cold, dry to wet, calm to stormy and so on. So there is no single answer to the question.Around the world there would have been a wide variety of weather, from hot to cold, dry to wet, calm to stormy and so on. So there is no single answer to the question.Around the world there would have been a wide variety of weather, from hot to cold, dry to wet, calm to stormy and so on. So there is no single answer to the question.Around the world there would have been a wide variety of weather, from hot to cold, dry to wet, calm to stormy and so on. So there is no single answer to the question.Around the world there would have been a wide variety of weather, from hot to cold, dry to wet, calm to stormy and so on. So there is no single answer to the question.Around the world there would have been a wide variety of weather, from hot to cold, dry to wet, calm to stormy and so on. So there is no single answer to the question.Around the world there would have been a wide variety of weather, from hot to cold, dry to wet, calm to stormy and so on. So there is no single answer to the question.
What is the difference between weather seasons and climate?
they have the difference or hot or cold weather and the storms they can be bad or not so bad
Why is the weather so unstable?
Currents of warm or cold air are constantly flowing, driving various weather fronts before them.
The UK has no glaciers today. why not?
the UK has no glaciers because it takes so long to make one and you need really cold weather all year round and the UK gets really hot.
Does cold weather affect hiv aids patients?
It is irrelevant to AIDS patient.Cold weather can affect a normal person and so an AIDS patient. Since the patient has immunocompromised immunity the patient may feel sick more than the normal. Other than than there is no connection between cold weather and AIDS.
Why am I so cold?
Because the weather is cold.
Why do think the Justinian code lasted so long?
the justinian code lasted so long because it was fair and justifing
Can beagles survive in cold weather?
Dogs will adapt to cold weather by growing thicker fur. This thicker fur will keep the dogs warm when it is cold.
Is Its a cold weather so put on your comfy clothes grammatically correct?
The sentence 'Its a cold weather so put on your comfy clothes', is not correct grammar and it should be 'It's a cold weather; put on your comfy clothes '.
Can polar bears break into igloos?
No they cannot because they adapt to the cold weather for so long .....SO they don't know how to survive in the hot weather.
How did the Americans public respond during the Iran hostage crisis?
American were upset because the crisis lasted so long
Why was Roman Emperor so significant?
There were so many Roman emperors because the Roman empire lasted for a long, long, time.There were so many Roman emperors because the Roman empire lasted for a long, long, time.There were so many Roman emperors because the Roman empire lasted for a long, long, time.There were so many Roman emperors because the Roman empire lasted for a long, long, time.There were so many Roman emperors because the Roman empire lasted for a long, long, time.There were so many Roman emperors because the Roman empire lasted for a long, long, time.There were so many Roman emperors because the Roman empire lasted for a long, long, time.There were so many Roman emperors because the Roman empire lasted for a long, long, time.There were so many Roman emperors because the Roman empire lasted for a long, long, time.
What would happen if you were running in cold weather?
You'll get cold... you might get a cold or a flu...so sick and cold
What is the oldest dam and why has it lasted for so long?
d6dcddfok not sure
Why you always feel cold even the weather is not so cold?
Because you re sick.
Do penguins like hot weather?
No, penguins do not like hot weather but they need cold weather so they can live.
Why did you believe cold war began and why it lasted so long?
Well, it was because the Soviet Union and United States were the two superpowers of the world, and thus competing for superiority. It lasted so long because the Soviet Union lasted so long. During the 1980s, it started breaking apart and by the early 1990s it had broken up, ending the Cold War. They also termed it the "Cold War" because of a potential nuclear war between the two that would destroy each other altogether, but they never directly fought. It was not only about that, either. It was fighting for dominance over technology and weapons and such. They did have proxy wars , though. As in, they would take separate sides in a war and proceed to help that side.
