A mild and relatively quiet week continues across the Tennessee Valley with today’s high temperatures in the middle 60’s to go along with mainly sunny skies. A shower or two is possible on Wednesday night and Thursday; otherwise, dry conditions should accompany the mild temperature pattern through the upcoming weekend.
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A mild and relatively quiet week in the Tennessee Valley with the 60’s for highs likely on most days and we could touch 70 degrees at mid-week. A shower or two possible on Thursday; otherwise, dry conditions will accompany the mild temperatures.
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Arctic high pressure that has dominated the weather pattern during the past few days will finally weaken and shift to the east of here as we move into the weekend. As such, temperatures will begin a climb from afternoon highs in the 30’s today to near 50 degrees on Sunday and then the middle 60’s are on the table during the first half of next week.
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Arctic air covers much of the nation again today with a continuing tight grip on the central states where numerous daily low temperature records have been set all the way from the Dakotas to Texas and, in a few cases, monthly low temperature records have been challenged. The average temperature across the continental US earlier today was 15.0°F below the average for this time of year and, in a few spots, temperatures were between 45 and 50 degrees below the average (e.g., Nebraska, SW Missouri). Temperatures will gradually moderate over the upcoming weekend and next week promises to feature above-normal temperatures across a wide part of the nation. It is, however, quite likely that additional very cold air masses will be able to make their way from northern Canada into the central and eastern US as the month of March gets underway.
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Arctic air covers much of the nation today with a particularly tight grip on the central states where numerous daily low temperature records have been set all the way from the Dakotas to the Rio Grande Valley region of southern Texas. The average temperature across the continental US earlier today was 15.4°F which is well below normal for this time of year and only the state of Florida could boast about warm weather conditions.
In addition to the widespread cold, accumulating snow fell yesterday across portions of the Middle Mississippi Valley and significant snow today will spread from the Tennessee Valley to the southern Mid-Atlantic region. The DC metro area will be on the northern edge of today’s “southern stream” system and can receive a coating to an inch or so; especially, across the southern suburbs. On Thursday, a “northern stream” wave in the upper atmosphere will pass right over the Mid-Atlantic region and likely result in some snow or snow shower activity in the DC-to-Philly-to-NYC corridor. The week ends with yet another very cold and windy day on Friday in the Mid-Atlantic region with well below normal temperatures and even lower wind chill values.
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Arctic high pressure dominates the scene over the eastern 2/3rds of the nation and will continue to do so for another couple of days. Low pressure is organizing this morning over the northern Gulf region and it can produce snow showers and some ice in the area through the morning hours and small snow/ice accumulations are possible. Temperatures will begin a warming trend on Friday climbing to near 40 degrees and 60+ degree highs will be possible around here by Monday afternoon.
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Arctic high pressure dominates the scene over the eastern 2/3rds of the nation and will continue to do so for another few days. After a brief warm-up today, high temperatures will be reduced to the 30’s on Wednesday and no better than 30 degrees on Thursday. Overnight temperatures can drop to bitter cold levels of the low-to-middle teens by early Thursday morning across the northern part of Alabama.
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An active period of weather returns this weekend with warmer conditions and an increasing chance of showers and thunderstorms. Some of the rain can be heavy at times later Saturday into Saturday night before some cooler air returns early next week.
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A major storm system will pound the western states during the next couple of days and it will then trek across the nation and wreak havoc in the eastern states this weekend. In California, the rainfall in coming days will be heavy all along low-lying coastal sections from Oregon to the Mexican border, and snowfall will be measured by the foot in the Sierra Nevada Mountains. By the early part of the upcoming weekend, this same storm system will bring flooding rainfall to the Ohio and Tennessee Valleys and then significant snow is likely on Sunday across interior New York State and New England.
In the Mid-Atlantic region, there will be plenty of rainfall this weekend; however, it is likely to be preceded on the front-end by snow and accumulations are possible; especially, to the north of the PA/MD border. Cold air will pour into the eastern states following this weekend storm system and next week is indeed looking very cold across the eastern two-thirds of the nation. Low pressure is likely to gather strength in the southern states by the middle of next week aided by an influx of Gulf moisture and it could become a major east coast storm system by later Wednesday or Thursday.
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The next couple of days will be rather quiet across the region with high pressure taking control following the passage of a cold front. An active period of weather returns this weekend with warmer conditions and an increasing chance of showers and thunderstorms. Some of the rain can be heavy at times later Saturday into Saturday night before some cooler air returns early next week.
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