An Arctic air mass is headed to the Mid-Atlantic region for the weekend with its origins on the Siberian side of the North Pole. This Arctic blast will be directly discharged to us from eastern Canada as compared with the more conventional “northwest-to-southeast” route that has air traveling over the Great Lakes meaning there will be less chance for modification. The cold front at the leading edge of this bitter cold air mass will be quite active on Friday night with strong support in the upper part of the atmosphere, leading to snow showers and perhaps a heavier snow squall. Snow accumulations of a coating to a couple of inches are likely on Friday night…watch out for slippery spots. In addition to the bitter cold this weekend, winds will become a major factor on both days with gusts up to 50 mph producing dangerously low wind chill levels of well below zero in many locations.
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An Arctic air mass is headed to the Mid-Atlantic region for the weekend with its origins on the Siberian side of the North Pole. This Arctic blast will be directly discharged to us from eastern Canada as compared with the more conventional “northwest-to-southeast” route that has air traveling over the Great Lakes meaning there will be less chance for modification. The cold front at the leading edge of this bitter cold air mass will be quite active on Friday night with strong support in the upper part of the atmosphere, leading to snow showers and perhaps a heavier snow squall. Small accumulations of a coating to an inch or so are likely on Friday night…watch for slippery spots. In addition to the bitter cold this weekend, winds will become a major factor on both days with gusts up to 50 mph producing dangerously low wind chill levels of well below zero in many locations.
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An Arctic air mass is headed to the Mid-Atlantic/Northeast US for the weekend with its origins on the Siberian side of the North Pole. This Arctic blast will be directly discharged to us from eastern Canada as compared with the more conventional “northwest-to-southeast” route that travels over the Great Lakes. The cold front at the leading edge of this bitter cold air mass will be quite active with strong support in the upper part of the atmosphere, likely leading to some accumulating snow on Friday afternoon and evening, and perhaps a few snow squalls will mix into the picture. In addition to the bitter cold, biting and potentially damaging winds will become a major factor on both weekend days with gusts of 50+ mph producing dangerously low wind chill levels of well below zero in many locations.
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Temperatures climbed above freezing on Tuesday for the first time in awhile in many spots and this allowed for some melting of the “snowcrete” that has been stuck in place in recent days. Yesterday’s “warmup” is the good news…the bad news is that much colder air returns by tonight and we’re headed for a bitter cold weekend in the Mid-Atlantic region. The next weather system of note will be a strong Arctic cold front that arrives later in the day on Friday and it can produce some snow during the afternoon and evening hours…perhaps even a snow squall. The passage of the late week Arctic front will result in a direct discharge of Arctic air from eastern Canada and temperatures are likely to be confined to the mid-to-upper 20’s for afternoon highs. In addition, the winds will be powerful on both Saturday and Sunday as the result of a very tight pressure gradient across the northeastern states and wind chill levels will be below zero at times. Another clipper system will drop southeast on Sunday from the Great Lakes to the Mid-Atlantic and it can produce snow showers in parts of the area.
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Temperatures climbed above freezing on Tuesday for the first time in awhile in many spots and this allowed for some melting of the “snowcrete” that has been stuck in place in recent days. Yesterday’s “warmup” is the good news…the bad news is that much colder air returns by tonight and we’re headed for a bitter cold weekend in the Mid-Atlantic region. The next weather system of note will be a strong Arctic cold front that arrives later in the day on Friday and it can produce some snow during the afternoon and evening hours…perhaps even a snow squall. The passage of the late week Arctic front will result in a direct discharge of Arctic air from eastern Canada and temperatures are likely to be confined to the mid-to-upper teens for afternoon highs. In addition, the winds will be powerful on both Saturday and Sunday as the result of a very tight pressure gradient across the northeastern states and wind chill levels will be below zero at times. Another clipper system will drop southeast on Sunday from the Great Lakes to the Mid-Atlantic and it can produce snow showers in parts of the area.
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Temperatures climbed above freezing on Tuesday for the first time in awhile in many spots and this allowed for some melting of the “snowcrete” that has been stuck in place in recent days. Yesterday’s “warmup” is the good news…the bad news is that much colder air returns by tonight and we’re headed for a bitter cold weekend in the Mid-Atlantic region. The next weather system of note will be a strong Arctic cold front that arrives later in the day on Friday and it can produce some snow during the afternoon and evening hours…perhaps even a snow squall. The passage of the late week Arctic front will result in a direct discharge of Arctic air from eastern Canada and temperatures are likely to be confined to upper teens for afternoon highs. In addition, the winds will be powerful on both Saturday and Sunday as the result of a very tight pressure gradient across the northeastern states and wind chill levels will be below zero at times. Another clipper system will drop southeast on Sunday from the Great Lakes to the Mid-Atlantic and it can produce snow showers in parts of the area.
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Solar cycle 25 has potentially passed through its maximum phase during the latter part of 2025 (don’t really know for sure until after the fact), but it continues to be very active time with lots of sunspot activity in recent weeks. One particular sunspot region known officially as AR4366 has grown rapidly in recent days and it has become the most active sunspot of solar cycle 25. This sunspot region is now more than ten times wider than Earth and is moving into a position that more directly faces our planet. The rapid growth of AR4366 has made the sunspot region unstable and it has indeed unleashed dozens of solar flares during the past few days. More explosions are quite likely and - given its movement in the near-term - all eyes are closely monitoring the situation.
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Weak low pressure will head in this direction today and it can produce some snow around here by later in the day and tonight with small accumulations on the table of a coating to an inch. The next weather system of note will be a strong Arctic cold front that arrives at the end of the week and it can produce some snow in the Mid-Atlantic region during the afternoon and evening hours on Friday. The passage of the late week Arctic front will result in a bitter cold weekend in the DC metro region with temperatures likely to be confined to the middle 20’s for afternoon highs on both Saturday and Sunday. In addition, the winds will be powerful on both days as the result of a tight pressure gradient across the northeastern states and the combination of the bitter cold and strong winds will produce much lower wind chill values. Looking ahead, it does appear that, for the first time in awhile, milder weather might just make it all the way into the northeastern states by the second half of next week.
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The coolest day of the week is likely to take place on Wednesday and that will be followed by much milder weather for the second half of the week. In fact, temperatures from Thursday through Sunday should climb all the way into the 60’s for afternoon highs in the Dem=never metro region.
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There will be an increasing chance for showers today as weak low pressure moves in this direction from the middle of the country, but the remainder of the week should be rain-free across the Tennessee Valley. In fact, the dry weather pattern setting up at mid-week can last all the way into the early part of next week and it will be accompanied by mild conditions on Friday, Saturday and Sunday.
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