The week will start off quite warm and unsettled as strong low pressure crosses the Great Lakes region. Showers are likely in the area as we begin the new work week and there can even be some thunderstorm activity. A slow-moving cold front will bring colder air into the region later tomorrow night and there can be a changeover of rain showers to snow showers in the wee hours of Wednesday morning.
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Low pressure will push out of the central US today and head into to near Arkansas by later in the day and the threat for showers will return to the Tennessee Valley. A warming trend will begin late this weekend and temperatures should climb into the 60’s by the early part of next week although showers and perhaps thunderstorms are likely to return to the region. After that, another cold air outbreak is destined to drop southeastward into the central and eastern US by the middle of next week.
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Today will be a bit milder than yesterday as high pressure remains in control and produces a southerly flow in the area. A disturbance from the western US will head this way for the end of the work week and will increase the chance of showers on Friday and Friday night. A warming trend will begin this weekend and temperatures should climb into the 60’s by the early part of next week although showers and perhaps thunderstorms are likely to return to the region.
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The snow pack across the nation is well above-normal for early December and it is actually at or near record high levels across all of North America. In addition, the first few days of December are colder-than-normal across the nation as a whole and this follows a colder-than-normal month of November for the eastern two-thirds of the nation. Looking ahead, multiple cold air outbreaks are destined to reach the central and eastern US from Canada right into at least the middle part of the month, but there will be some short-lived warmer-than-normal breaks as well.
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Today will be a seasonably cool day across northern Alabama with plenty of sunshine thanks to high pressure that will be building into the area. The high will remain in the vicinity on Thursday providing us with more dry weather and a bit milder conditions. A disturbance from the western US will head in this direction by the end of the work week and will increase the chance of showers as we end the work week. A warming trend will begin this weekend and temperatures should climb to the 60’s by the early part of next week although rain showers are likely to return to the region.
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Chilly conditions will continue today in the Tennessee Valley with highs confined to the 40’s – below normal for the early part of December. It’ll stay on the cool side for the next couple of days as northwest flow aloft will continue to push colder-than-normal air into the northern part of Alabama.
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One strong storm is producing heavy snowfall across the Upper Midwest today and it’ll generate some very strong winds later today into Thursday in a large section of the country extending from the Great Lakes/Ohio Valley to the Mid-Atlantic/NE US. Another powerful storm continues to wreak havoc across much of the western third of the nation with heavy coastal rain and significant inland snows. This second system will push to the northeast over the next couple of days, but once it reaches the Dakotas, it’ll run into an “atmospheric roadblock” and be “forced” to slide southeast towards the Mid-Atlantic/NE US coastline by later this weekend into early next week. The result of this storm track will allow for cold air to be in place in the Mid-Atlantic/NE US when the storm arrives later this weekend and this raises the chance for snow and ice. The threat for snow and ice will continue into Monday for this part of the nation as the surface low spins around just off the coastline of the Mid-Atlantic/NE US.
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Two powerful weather systems continue to impact the nation with heavy snow today across the central Plains and Upper Midwest from the first storm and heavy rain, strong winds and inland snows out west from the second storm. Around here, a frontal system will bring some shower activity and temperatures are likely to fall into 40’s this afternoon as colder air moves into the region. There will be a warming trend later in the week as high pressure ridging builds across the south-central US, but another frontal system will impact the region this weekend.
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One major storm is bringing heavy snowfall to parts of the Rocky Mountains and central Plains and another is about to slam into the west coast of the US. Heavy snow from the first storm continues across the Rockies and has stretched into the central Plains and it’ll make a push into the Upper Midwest on Wednesday. This same system will then head eastward and drag a strong cold front across the Mid-Atlantic/NE US tomorrow evening and the winds will become quite strong with gusts past 40 mph. The second major storm will rapidly intensify before making landfall later tonight near the California/Oregon border and it will bring heavy rain and damaging winds to coastal sections and tremendous snows to inland higher elevation locations of the Sierra Nevada mountain range where the snow will be measured in feet over the next few days. This second storm will cross the nation and arrive in the Mid-Atlantic/NE US this weekend where there will be a lot of cold air and accumulating ice and snow could be the result in interior sections.
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Two powerful weather systems will impact the nation over the next few days which includes the big travel day tomorrow and Turkey Day on Thursday. The first system is already bringing heavy snow to the Rocky Mountain States and this storm will intensify rapidly as it heads towards the Upper Midwest on Wednesday. The result will be a wide swath of significant accumulating snow from Denver to Minneapolis - just in time for Thanksgiving Day. Another storm will become a powerhouse for the west coast and it will bring damaging (hurricane-force) winds and heavy mountain snows of more than a foot (e.g. Sierra Nevada). This storm will arrive tonight near the California/Oregon border and then will begin to gradually weaken as it moves inland.
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