On Tuesday, Bethel, Alaska, recorded its first below-zero temperature of the season, signaling a new jet stream pattern that has milder air spreading into the East.
12.
Mohler pinned the warm spell on La Nina-- the cooling of Pacific Ocean temperatures off the coast of South America that alters normal jet stream patterns.
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The active jet stream pattern will be felt in the Northeast when the recent heat and humidity is replaced by much cooler weather by week's end.
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When a big storm develops the jet stream pattern around the hemisphere becomes contorted providing added energy for storms at several spots many thousands of miles apart.
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The river originates from the high hills of the Western Ghats and the influence of tectonism can be evidenced from the stream pattern and presence of structural valleys.
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After exceptionally mild weather in the East for much of December, a new jet stream pattern will keep cold air over the region for the rest of the month.
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He foresees a possible convergence of conditions that could add up to cataclysmic results, a product of long-range temperature cycles, jet stream patterns, east winds and even sunspot cycles.
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The jet stream pattern across North America will continue to undergo changes Saturday, portending an end to the relatively dry conditions across the East over the next few days.
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By Thursday the jet-stream pattern will buckle, causing systems to progress more slowly and allowing cool air to move through the Rockies, while warmth expands northward from the Deep South.
20.
Upper atmospheric studies using National Oceanic and Atmospheric Administration ( NOAA ) data indicates that during July 2010 these upper air stream patterns were most frequently observed in the Northern Hemisphere.
