page_title: 2014–15 North American winter
section_title: November Bering Sea cyclone
hierarchical_section_title: 2014–15 North American winter / Events / November Bering Sea cyclone
caption_attribution_description: English: The November 2014 Bering Sea bomb cyclone at peak intensity over the Bering Sea, late on November 8, 2014.
context_page_description: The 2014–15 North American winter refers to winter in North America as it occurred across the continent from late 2014 through early 2015. While both the meteorological and astronomical definitions of winter involve the onset of winter occurring in December, many places in North America experienced their first wintry weather during mid November. A period of below-average temperatures affected much of the contiguous United States, and several records were broken. An early trace of snowfall was recorded in Arkansas. There were greater accumulations of snow across parts of Oklahoma as well. A quasi-permanent phenomenon referred to as the polar vortex may have been partly responsible for the cold weather. Temperatures in much of the United States dropped 15 to 35 °F below average by November 19 following a southward "dip" of the polar vortex into the eastern two-thirds of the country. The effects of this dip were widespread, bringing about temperatures as low as 28 °F in Pensacola, Florida. Following a significant snowstorm there, Buffalo, New York received several feet of snow from November 17–21.
context_section_description: In early November 2014, Typhoon Nuri peaked in intensity as a Category 5-equivalent typhoon on the Saffir–Simpson hurricane wind scale. The storm became extratropical on November 8, and it was absorbed by a new center of circulation. The new, more powerful cyclone entered the Bering Sea, and intensified to become the most powerful storm to ever impact the region, with a minimum barometric pressure of 924 millibars (27.3 inches of mercury). This compares to the previous record of 925 mbar (27.3 inHg) from a storm on October 25, 1977. In association with the storm, there were winds exceeding hurricane-force with a wind gust of 97 miles per hour (156 km/h) recorded at Shemya, Alaska. The storm also produced waves as high as 45 feet (14 m), although waves were lesser on the Alaska coast. The storm weakened as it moved westward, and it produced a "ripple" in the jet stream which allowed for a strong cold front to dive southward out of Canada into the United States, producing a cold wave.
caption: The cyclone in the Bering Sea, as viewed early on November 8, at peak intensity
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