Low pressure will intensify over the central states today and generate blizzard conditions in the Northern Plains with heavy snow and powerful winds. This storm will push to the northeast tonight and the blizzard conditions will extend into Minnesota and Upper Wisconsin. Meanwhile, on the storm’s warm side, severe weather is likely to break out later today into tonight in the Lower Mississippi and Tennessee Valleys including the possibility of isolated tornadoes. The initial primary surface low pressure system will grind to a halt and weaken as it reaches the Great Lakes due to a strong blocking pattern in the atmosphere over Canada.
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The overall weather pattern has become quite active and the latest storm system will wreak havoc across much of the nation during the next few days. In fact, this system has already contributed to several feet of snow in the Sierra Nevada and southern Cascades out west and blizzard conditions will develop on Tuesday across the northern Rocky Mountain states. By tomorrow night and Wednesday, this storm system will bring blizzard conditions to the and Northern Plains and Upper Midwest.
At the same time, the warm sector of this storm will likely feature some severe weather from later tomorrow into Wednesday across the Lower Mississippi and Tennessee Valleys. On Thursday, the precipitation field from this impactful storm system will reach the Mid-Atlantic region and the onset is likely to feature a wintry mix - even into the I-95 corridor before an eventual changeover to plain rain.
Looking ahead, a very cold pattern is destined to develop across the central and eastern US later next week. Arctic cold has already become well established across much of Europe and Asia – often a foreshadowing of conditions to come in the US. The cold pattern will remain quite active as well increasing the chances for a White Christmas in much of the northern US.
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An active weather pattern will continue this week with a strong storm system wreaking havoc on much of the nation. Low pressure will intensify over the central states on Tuesday and produce blizzard conditions in the Northern Plains with heavy snow and powerful winds. On its warm side, severe weather could break out on Tuesday night in the Lower Mississippi and Tennessee Valleys including the possibility of tornadoes. The initial primary low pressure system will grind to a halt as it reaches the Great Lakes/southern Canada due to a strong blocking pattern in the atmosphere over Canada. A secondary storm will likely develop near the east coast later in the week and this could result in a significant winter storm for the Mid-Atlantic from Thursday into Friday with a combination of rain, ice and snow.
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Warm and unsettled weather will continue here today with a continuing chance of showers and above-normal temperatures. The mild weather will give way to slightly cooler weather this weekend and the threat of showers will continue across northern Alabama.
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The overall weather pattern across the nation will be quite active from later this weekend through next week with multiple storm threats. One low pressure system will form over the Midwest on Saturday and then its precipitation shield will push into the Mid-Atlantic region on Sunday. Enough cold air will be around for snow on Sunday in much of the northern Mid-Atlantic with accumulations of up to a few inches likely in some interior and higher elevation locations. Another storm system will wreak havoc across much of the nation next week with a possible severe weather outbreak late Tuesday/Tuesday night in the Lower Mississippi and Tennessee Valleys and blizzard conditions across the Northern Plains. This system and its precipitation field likely reaches the eastern states later next week and frozen precipitation will likely be in the mix: especially, if re-development of a surface low takes place near the east coast which could make for more of a serious winter storm threat in the Mid-Atlantic. The evolving pattern should feature more sustained cold air in the eastern states following that mid-to-late week storm system and “cross-polar flow” later this month will assure some very cold air masses reaching into North America.
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Warm and unsettled weather will continue through Friday across the Tennessee Valley with a continuing chance of showers and thunderstorms and above-normal temperatures. The mild weather will give way to slightly cooler weather this weekend and the threat of showers will continue across northern Alabama.
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The overall weather pattern will be quite active from this weekend through next week with multiple storm threats in the northeastern US and a possible severe weather threat around Tuesday of next week in the Lower Mississippi Valley. Cold air is trying to work its way into the northeastern US on a consistent basis, but likely won’t be able to until later next week. Nonetheless, there will be enough cold air around for a likely Sunday/Monday storm threat to at least produce a chance of accumulating snow in the northeastern states. Another storm system will likely arrive in the eastern states by the middle of next week and there may be enough cold air around for some frozen precipitation at the onset in portions of the Northeast US. More sustained cold air will follow later next week.
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Warm and unsettled weather will continue today across the Tennessee Valley with a continuing chance of showers and thunderstorms and above-normal temperatures nearing the 70 degree mark. The mild weather will continue through the rest of the work week and then it turns slightly cooler for the weekend.
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An unsettled weather pattern is in store for much of the week across the Tennessee Valley. Rain fell yesterday across the region and the threat of showers and thunderstorms will continue for the next few days. It will be very mild through Thursday, but then cooler pushes in by the early part of the weekend.
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An unsettled weather pattern is in store for much of the week across the Tennessee Valley. In fact, there can be multiple rounds of rain with several frontal systems having an impact and a broad southwesterly flow of air will help to bring in the moisture-laden air. In addition, the southwesterly flow of air will keep us quite mild with highs well up in the 60’s on Tuesday, Wednesday and Thursday.
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