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Old December 17th 18, 11:35 PM posted to sci.geo.meteorology
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Default November 2018 National Weather Summary



4-10: Warm and windy weather in California contributed to the development and rapid expansion of three major (and several smaller) wildfires. In Butte County, CA, the Camp Fire—sparked on November 8—became the deadliest and most destructive in state history, resulting in at least 48 fatalities and the loss of more than 7,500 homes. Dry weather also extended eastward to the southern High Plains, while generally light rain and snow showers accompanied cold weather across the northern and central Plains and the western Corn Belt. Weekly temperatures averaged more than 10°F below normal across large sections of the northern and central Plains and the western Corn Belt, with temperatures locally falling below 0°F—especially on November 9—on the northern Plains. By week’s end, freezes occurred deep into the South, stretching from northern Texas to northern Georgia. On the night of November 8-9, wind gusts in southern California were clocked to 77 mph at Camp Nine in Los Angeles County and 74 mph in Fremont Canyon in Orange County. In addition to the aforementioned Camp Fire, which scorched at least 130,000 acres of vegetation, the Woolsey and Hill Fires—both in Ventura County—collectively burned nearly 100,000 acres and destroyed more than 400 homes. For much of the week, warmth was limited to Florida’s peninsula and the Far West. In southern Florida, Key West collected dailyrecord highs (88, 88, 87, and 87°F) on November 4, 6, 8, and 10. Elsewhere in Florida, daily-record highs soared to 89°F in Gainesville (on November 8) and Fort Myers (on November 9). Ahead of a powerful cold front, there was a brief surge of warmth into the western Gulf Coast region on November 7, when daily-record highs in Texas surged to 90°F in Brownsville and 89°F in Houston. Meanwhile, California experienced large temperature fluctuations due to very dry air. For example, Paso Robles, CA, noted a weekly average high temperature of 78°F and an average low of 33°F. Paso Robles also notched a daily-record low of 27°F on November 10. Elsewhere in California, South Lake Tahoe posted a daily-record high of 68°F on November 4 and a daily-record low of 11°F on November 9. In Oregon, Klamath Falls observed five consecutive daily-record lows (14, 13, 14, 7, and 12°F) from November 6-10. Elsewhere, the week ended on November 9-10 with consecutive daily-record lows in locations such as Burns, OR (0 and 4°F); Winnemucca, NV (2 and 7°F); Kansas City, MO (13 and 9°F); and Topeka, KS (16 and 12°F). On the 9th, daily-record lows dipped to 0°F or below in Crested Butte, CO (-17°F); Chadron, NE (-1°F); and Aberdeen, SD (0°F).
11-17: Cold weather accompanied the blast of wintry precipitation. In fact, below-normal temperatures dominated the country, with near- or slightly above normal readings limited to Florida’s peninsula and areas along and near the Gulf and Pacific Coasts. Weekly temperatures averaged 10 to 15°F below normal across large parts of the Mississippi Valley, western Gulf Coast region, Great Lakes States, and northern New England. Temperatures plunged below 0°F in portions of the Rockies and scattered locations from Montana to Maine. Elsewhere, generally light precipitation fell across the Plains, with snow accumulating in some areas. Due to the Plains’ cold weather and still-wet fields, delays continued with respect to summer crop harvesting and winter wheat planting, emergence, and establishment.
Early in the week, high winds continued across parts of southern California, while cold air settled into some of California’s valley locations. On November 11, a wind gust to 66 mph was clocked in Fremont Canyon in Orange County, while California’s daily-record lows dipped to 31°F in Modesto, Sacramento, and Stockton. Cold weather also covered parts of the East, where record-setting lows for November 11 included 17°F in Bluefield, WV, and 20°F in Dayton, OH. Later, another surge of cold air trailed an early-season snowfall. On the Plains, daily-record lows fell to 7°F (on November 12) in Garden City, KS, and 12°F (on November 13) in Dalhart, TX. Elsewhere in Texas, consecutive daily-record lows were set on November 13-14 in San Antonio (28 and 23°F) and Victoria (32 and 28°F). Similarly, McAllen posted a pair of daily-record lows (33 and 36°F, respectively) on November 14-15. Meanwhile, frigid air invaded the Northeast in advance of an approaching storm. Northeastern daily-record lows for November 15 plunged to 4°F in Montpelier, VT, and 6°F in Caribou, ME. In contrast, warmth lingered through midweek in Florida, where Fort Myers tallied a daily-record high of 90°F on November 14. Elsewhere in Florida, the high temperature in Sarasota-Bradenton reached or exceeded the 85-degree mark each day from November 7-14, peaking at 89°F—a record for the date—on the 14th.

18-24: Weekly temperatures averaged at least 5°F above normal from Montana to northwestern Kansas. Rainfall totaled 2 inches or more in portions of the Mid-Atlantic States. In addition, cold conditions dominated the eastern half of the country for much of the week, with bitterly cold air sweeping across the Great Lakes and Northeastern States on Thanksgiving Day. Weekly temperatures averaged 10 to 15°F below normal across much of the Northeast.
Early in the week, cold conditions affected much of the central and eastern U.S. On November 18, daily record lows plunged to sub-zero levels in locations such as Rochester, MN (-5°F); Mason City, IA (-6°F); and Houlton, ME (-6°F). With a low of -7°F, Houlton collected another daily record low on November 19. By mid-week, however, warmth returned to the northern High Plains. On November 20, Choteau, MT, logged a daily-record high of 65°F. Two days later, on Thanksgiving Day, Valentine, NE, notched a daily record high of 74°F. In contrast, a severe, early-season cold wave engulfed the Great Lakes and Northeastern States. In Michigan, Pellston posted consecutive daily-record lows (-8 and 15°F, respectively) on November 21-22. Similarly, consecutive daily-record lows were established on November 22-23 in New York locations such as Watertown (-7°F both days) and Binghamton (3 and 0°F). Both locations also set monthly records; previous standards had been -3°F in Watertown on November 28, 1996, and 3°F in Binghamton on November 30, 1976, and November 24, 2000. Scranton, PA, also set a monthly record with a low of 5°F on November 23 (previously, 6°F on November 30, 1929, and November 26, 1938). For several Northeastern locations, including Portland, ME, and Binghamton, Thanksgiving Day high temperatures (6 and 3°F, respectively) were the lowest on record. Portland’s previous coldest Thanksgiving had been November 23, 1978, when the high reached 7°F. Binghamton’s previous coldest Thanksgiving had been November 28, 1996, with a high of 9°F. In Maine, Thanksgiving Day highs of 12°F in Houlton and 14°F in Bangor tied monthly records originally set on November 27, 1978. Farther south, November 22 highs of 16°F in Worcester, MA, and 21°F in Hartford, CT, broke monthly records (20 and 23°F, respectively) most recently attained on November 30, 1958.

25-30: Weekly temperatures averaged more than 5°F below normal across a broad area of the Midwest, as well as parts of the middle and southern Atlantic States. In contrast, readings averaged at least 5°F above normal across the northern High Plains and portions of the southern Plains. Mild weather also prevailed in the Pacific Coast States.

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