After yesterday’s nice weather, the weather goes downhill for the Tennessee Valley and this will include the possibility for some soaking rainfall over the next few days. A stalled-out frontal boundary zone will act as a conduit for moisture to move in from southwest-to-northeast and multiple rounds of showers and possible thunderstorms. This unsettled pattern will begin today and continue right into the early part of next week. The rainfall amounts over the next few days can exceed 4 or 5 inches in parts of the Tennessee Valley with the “bullseye” region of highest amounts extending from northeast Texas to northeast Tennessee.
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Today will turn out cooler than yesterday following the passage of a weak frontal system and temperatures should be confined to the lower 60’s for afternoon highs. After today’s nice weather, the weather goes downhill for the Tennessee Valley and this will include the possibility for some heavy rainfall. A stalled-out frontal boundary zone will act as a conduit for multiple rounds of showers and possible thunderstorms beginning on Friday and continuing through the upcoming weekend. The rainfall amounts over the next few days can exceed 4 or 5 inches in parts of the Tennessee Valley with a “bulls eye” region extending from Arkansas to Tennessee.
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Today will turn out even milder than yesterday ahead of a weak frontal system and temperatures should climb to the upper 60’s for afternoon highs. A strong disturbance will move from Texas into Arkansas by late tomorrow and this will bring unsettled weather to the area with an increasing chance of showers. In fact, this wave will hang around into the end of the week with a continuing chance of showers across much of the Tennessee Valley.
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Today will generally be on the quiet and mild side although winds will tend to kick up this afternoon gusting to 25 mph or so. High pressure over the Gulf of Mexico will shift to the east and control the weather scene across the Tennessee Valley. Wednesday will turn out even milder ahead of a weak frontal system and temperatures should climb well up into the 60’s.
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Showers associated with a frontal system should push away from the region this morning and there is likely to be some sunshine later today, but the winds will be quite gusty. High pressure moves into the region on Tuesday and a warming trend will begin and temperatures should be able to climb into the 60’s at mid-week for a nice change from the recent cold.
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It’ll remain quite cold here today and unsettled with the chance of rain and/or snow showers as low pressure pulls away and towards the Mid-Atlantic coastline. In its wake, it’ll turn even chillier on Friday with afternoon highs confined to the 30’s, but modification in temperatures will take place this weekend across the Tennessee Valley.
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After a bitter cold start to the day, the Arctic air mass will modify some this afternoon as temperatures climb well up into the 30’s. However, the chance of snow will not go away as another storm system starts to place in the southern US and we’ll have a chance of snow showers during the next couple of days.
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With the passage of one storm system in the overnight hours, attention to those in the Mid-Atlantic region will now turn to the next storm system and this one is likely to generate significant snow and/or ice for the DC-to-Philly-to-NYC corridor with several inches on the table. The next storm will take a track farther to the east compared to last night’s system and this will help to keep in place a cold air mass that arrives in the overnight hours. This cold air mass will be anchored by strong high pressure to the north and low-level temperatures are likely to remain at or below freezing during much of the upcoming event in the immediate I-95 corridor – virtually assuring a buildup of snow and/or ice.
Elsewhere, historic and dangerous cold continues today across much of the central US. Several sites have set their all-time low temperature records and many others have experienced their lowest temperatures ever recorded in the month of February. In addition to the extreme cold, snow and ice has accumulated all the way down to the Gulf coastal region of Texas. In fact, nearly three-quarters of the US is now covered by snow which is the highest amount ever recorded since this kind of data began to be collected in 2003.
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Arctic air pushed into the region on Monday and it’ll remain way below normal across northern Alabama today despite the return of some sunshine. Highs this afternoon will likely not make it past the 30 degree mark and lows overnight will be near the 20 degree mark. Temperatures modify at mid-week with highs back in the 40’s and there will be a chance of showers.
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Historic cold has gripped much of the central/southern US today with many locations experiencing their all-time lowest temperatures and many other sites breaking their monthly (February) low temperature records. In addition, snow and ice has fallen in unusual places today all the way down to the Gulf coastal regions of Texas and Louisiana. The storm responsible for the snow and ice in the Deep South will now head towards the Tennessee and Ohio Valleys and bring a swath of accumulating snow and significant ice along its path.
As this storm heads well to the north and west of the Mid-Atlantic I-95 corridor, enough warmer air should move in to generate primarily a plain rain event later today and tonight for the metro regions with icing confined to the far northern and western suburbs. A second storm later in the week will have more cold air ahead of it than this initial system and this could result in a period of accumulating snow at the onset late Wednesday night/early Thursday before a likely changeover to a wintry mix.
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