After a very mild start to the month of November in much of the eastern half of the nation, the weather has been primarily colder-than-normal during the last ten days or so. In fact, numerous low temperature records were set last week and earlier this week in what was an unusually widespread and severe cold air outbreak across much of the nation. Looking ahead, it looks like it’ll be seasonal or even warmer-than-normal in the central and eastern in coming days as we close out the month of November. Numerous signs, however, point to the return of a colder-than-normal weather pattern during the month of December. probably with sustained cold reaching the eastern US after the 7th or 8th.
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Temperatures across most of the nation remain below-normal for this time of year and will continue to do so through the upcoming weekend. Accumulating snow is now falling in parts of the Rocky Mountain States and an intense Great Lakes snow event is just getting underway. In fact, the lake effect snow event that is just getting underway looks like it’ll be of long-duration possibly producing as much as 3-6 feet in places like Buffalo and Watertown of western New York State. Looking ahead, there are signs that after a milder first half of next week in the eastern states, the overall weather pattern could get interesting by the end of next week with a powerful coastal storm on the table…something to monitor in coming days.
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Temperatures across the nation this morning averaged out to an impressive reading of nearly 12 degrees (F) below-normal for mid-November and no state in the Lower 48 escaped the colder-than-normal chill. The first widespread snow event of the season took place late yesterday in the interior, higher elevation locations of the Mid-Atlantic/Northeast US with half of foot of snow recorded in some areas. The next few days will feature a “Great Lakes snow-making machine” that will be turned on in full force and the result may be several feet of snow in some downstream locations such as Buffalo and Watertown in western New York. The nationwide cold will continue right through the upcoming weekend.
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This “middle” week of the month of November could turn out to be one of the coldest in a long, long time for the nation as a whole with virtually coast-to-coast colder-than-normal weather conditions. There was a smattering of low temperature records set this morning across the central and western US and numerous records are likely to be set later this week and weekend; especially, across the central states where temperatures could drop to as much as thirty degrees below normal for this time of year.
In terms of snowfall in this unusual early season cold wave, it looks like the first widespread snow of the season will take place from later today into early Wednesday across interior, higher elevation sections of the Mid-Atlantic/Northeast US. Later this week, an intense Great Lakes snow event will kick into gear with paralyzing amounts of snow possible in some spots such as Buffalo and Watertown in western New York.
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At the same time Tropical Storm Nicole was pounding Florida on Friday with rain and wind, a blizzard was raging in the Northern Plains where two feet of snow piled up in such places as Bismarck, North Dakota. That late week cold air mass situated in the Northern Plains subsequently made its way into the northeastern US following the departure of Nicole to the open waters of the Atlantic Ocean. The exit of Nicole helped to bring about a change to the overall upper air wind pattern across North America. In fact, not only has the eastern US chilled down during the past 24 hours, virtually the entire nation is now featuring colder-than-normal temperatures and will likely do so right through the weekend. By the end of the week, many low temperature records will have been broken; especially, across the center part of the nation and every state in the Lower 48 can experience below-freezing temperatures.
In terms of snow potential, a coastal low will intensify by tomorrow night just off the Mid-Atlantic coastline resulting in a cold, soaking rain in the immediate I-95 corridor and to coastal sections, but the first accumulating snowfall of the season is likely in many of the interior, higher elevation locations across the northeastern states. The chill may ease up for awhile later next week, but there are signs for a resumption of the cold pattern going into late November and December.
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Nicole climbed to category 1 hurricane status late yesterday and came ashore in the overnight hours near Vero Beach in east-central Florida. After landfall, Nicole has weakened slightly back to tropical storm status and will become increasingly influenced by a deep upper-level trough over the north-central states that is contributing to blizzard-like conditions in the Upper Midwest/Northern Plains. The remains of Nicole will ride up along the spine of the Appalachian Mountains over the next 24-48 hours resulting in a significant rain and wind event all the way from Florida-to-Maine. On the east side of the expected storm track, severe weather will be a possibility including the threat of isolated tornadoes. The passage of the tropical storm will be part of an overall significant temperature pattern change in the central and eastern US that will bring much colder weather conditions for the remainder of November.
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Tropical Storm Nicole is headed towards east-central Florida for a likely landfall early Thursday morning. Some intensification is likely during the next 24-36 hours before landfall which could result in Nicole reaching category 1 or even 2 hurricane status before making landfall. After landfall, Nicole will be increasingly influenced by a deep upper-level trough over the central states and it’ll turn to the north and northeast resulting in a major rain event all along the east coast from Florida-to-Maine. In addition to the rain, severe weather will be a threat in the coastal plain from the Carolinas to the Northeast US which will be on the right side of the storm track…prime location for tornadic activity. The passage of the tropical system will be part of an overall significant temperature pattern change in the eastern US that will bring much colder weather conditions beginning this weekend and likely lasting through the remainder of November.
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The tropical scene is still active and kicking in the Atlantic Basin and an area of disturbed weather in recent days has organized into Tropical Storm Nicole over the southwestern Atlantic Ocean. This system is likely to reach Florida later this week and there is a chance that it reaches category 1 hurricane status before making landfall. The moisture associated with Nicole is likely to then ride up along the eastern seaboard at week’s end. The passage of the tropical system will be part of an overall significant temperature pattern change across the nation that will bring much colder weather conditions to the central and eastern US.
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The tropical scene is still active and kicking in the Atlantic Basin as we begin the month of November with a couple systems to currently monitor and signs point to the possibility of another system near the east coast in about 7-10 days. Tropical Storm “Martin” - soon to be Hurricane “Martin” - is located well out over the open waters of the Atlantic Ocean and will become a powerful “extratropical” storm in the North Atlantic later this week. “Lisa” is now a category 1 hurricane and is closing in on Belize in Central America and could ultimately emerge over the Bay of Campeche. Elsewhere, the overall pattern looks to remain warmer-than-normal across the eastern US during the next 7-10 days, but important changes can come in terms of temperatures for the middle and latter parts of November.
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There have been a few chilly air masses that have reached the Mid-Atlantic/Northeast US in recent weeks, but the one destined to arrive here for next Tuesday and Wednesday will likely be the chilliest so far this season. A deep upper-level trough of low pressure will tend to rotate around and intensify during the next few days over the Great Lakes and southern part of Canada and then this system will spin its way into the eastern US by the middle of next week. With lots of instability in the atmosphere and the cold air mass pushing over the still relatively warm of the Great Lakes, snow showers are likely just downstream for the first time this season.
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