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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Coastal low pressure will depart from southern New England today and chilly high pressure will begin to build into the region from our west. Temperatures will remain below-normal here at mid-week as they’ll climb towards the 50 degree mark for afternoon highs (normal high now at DCA is 58 degrees). Winds pick up on Thursday and It turns even colder with the arrival of a reinforcing cold air mass after a frontal passage. This next cold shot will keep temperatures far below-normal from tomorrow all the way from tomorrow into the early part of next week and temperatures this weekend temperatures will struggle to pass the 40 degree mark for afternoon highs.
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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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Low pressure will form later today near the Mid-Atlantic coastline and then intensify later tonight as it pushes to the northeast over the western Atlantic Ocean. Rain will likely develop here by mid-afternoon and continue tonight moderate-to-heavy at times. It may just cold enough for snowflakes to mix in at times tonight across some of Washington D.C.’s far northern and western suburbs and some accumulating snow is likely across far western Virginia and eastern West Virginia. After the departure of the low on Wednesday, high pressure will build back into the region as a reinforcing cold air mass moves in from the northwest. In fact, high temperatures at the end of the week are likely to struggle to reach the lower 40’s which is well below-normal for mid-November.
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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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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 cold air mass 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 which set off a change to the overall upper air wind pattern across North America. High pressure builds into the region today, but then a coastal low will bring rain here by late tomorrow/tomorrow night and it could turn out to be a soaking rain event. It’ll be cold enough for snow across eastern West Virginia and far western Virginia with accumulations possible in those higher elevation locations. Cold high pressure will then edge into the region for the second half of the week and temperatures will hold at well below-normal levels.
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A significant wind and rain event is in store for the region from today through late tonight as the remains of Tropical Storm Nicole ride up along the spine of the Appalachian Mountains. Rainfall amounts of 1-2 inches are likely with isolated higher amounts possible by the end of the storm and winds can gust up to 50 mph or so as the storm center tracks just to our west late tonight. After the exit of Nicole early this weekend, a big-time change to the overall temperature pattern will take place across the eastern states. Temperatures will drop noticeably on Saturday night and after a cold, sunny day on Sunday, they are likely to bottom out near freezing by early Monday morning.
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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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A significant wind and rain event is in store for the Mid-Atlantic region from tomorrow into tomorrow night as the remains of Tropical Storm Nicole ride up along the spine of the Appalachian Mountains after making landfall overnight near Vero Beach in east-central Florida. Rainfall amounts around here from the tropical storm can end up in the 1-2 inch range by early Saturday with isolated higher amounts possible and winds can gust up to 50 mph as the storm tracks just to our west. Strong thunderstorms are also possible along the I-95 corridor and to the coast with the threat there for isolated tornadoes. After the exit of Nicole early this weekend, a big-time change to the overall temperature pattern will take place across the eastern states. Temperatures will drop noticeably on Saturday night and after a cold, sunny day on Sunday, they are likely to bottom out below freezing by early Monday morning.
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Nicole remains a tropical storm early Wednesday, but it has a good chance of attaining hurricane status later today as it heads for a landfall early Thursday in east-central Florida. The tropical moisture associated with Nicole will then push northeastward through the eastern states resulting in a heavy rain event all the way from Florida-to-Maine with 1-3 inches possible in the Mid-Atlantic region. Winds will become quite gusty on Friday and especially during Friday night and strong-to-severe thunderstorms are also possible given the likely storm track of Nicole that puts the coastal plain in an unstable atmosphere. After the exit of Nicole early this weekend, a big-time change to the overall temperature pattern will take place across the eastern states. Temperatures will drop noticeably on Saturday night and low temperatures by late Sunday night/early Monday morning should be below freezing in most spots.
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