Winds clocked at 50 mph whistled through the Southern California deserts Monday, heralding the arrival of a cold high pressure system across the interior West.
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Near the core of the cold high, temperatures will again plummet below zero degrees Fahrenheit early Thursday morning in a few spots across northern Nevada.
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A deep chill will numb parts of the Middle Atlantic and Southeast states early Sunday morning as strong, cold high pressure drifts east across the region.
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Thompson further indicates that a cold high pressure region was pushed from Canada into the Great Lakes region leading into the western part of South Dakota.
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A strong pressure difference between the intensifying Northeast low and a cold high-pressure center over central Canada will promote very gusty winds near the Great Lakes on Saturday.
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Aside from the mild weather along the southern California coast, much of the Southwest and interior West will be sunny and unusually cool as a cold high-pressure system builds over Idaho.
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The combination of a very cold high pressure system over Quebec and a strong disturbance moving southeast from the Ohio Valley will draw colder, moist air inland from the North Atlantic.
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Frequent cold mountain wave wind situations during winter associated with cold high pressure systems over the mainland prevail in the innermost Bay at Risan and vegetational zones are compressed by the impact of bora.
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Occasionally cold high pressure cells from North America drift south across the Gulf of Mexico and drive strong Tehuano winds across the Isthmus, with very strong wind concentration taking place in Chivela Pass in Oaxaca.
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Rescuers labored Thursday in intense cold high in the Hindu Kush mountains to save people trapped in a snow avalanche that killed up to three people, and the government appealed for help in reaching others stuck in the rugged mountain pass.
