An unsettled pattern set up yesterday across the Tennessee Valley as an upper-level trough of low pressure pushed to the east and it’ll become even more active for tonight, Thursday and Thursday night. With a deep moist layer of air in place, widespread showers and thunderstorms are likely from tonight into tomorrow night and some of the rain can be heavy at times with localized flooding a threat. There is also a decent chance that some of the thunderstorms that form on Thursday afternoon and evening reach severe levels with hail and even isolated tornadoes on the table. A strong cool front will clear the area by early Friday paving the way for nice weather to end the work week, but there will be a little instability in the atmosphere on both weekend days.
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An unsettled pattern sets up today as an upper-level trough of low pressure approaches the region from the west. As a result, the threat of showers will be persistent through the next few days and there can be thunderstorms mixed in. The potential for heavy rainfall is on the table for Thursday with the approach of a strong frontal system. By late in the week, this frontal system will clear through the area and leading to nice weather as we close out the work week and head into the upcoming weekend.
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High pressure will shift to the east of here today and this will result in a southerly flow of air boosting temperatures to 70+ degrees by later in the day. The weather will become more active later tonight and Tuesday as a cold front approaches the region increasing the chances of showers and thunderstorms. After the passage of the frontal system, the weather will remain active again during the second half of the week as another storm system follows in its footsteps. In fact, the pattern looks wet enough later in the week that localized flooding may be on the table with the potential of some heavy rainfall.
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After a very active day and night in the Tennessee Valley, the weather will quiet down some time as upper-level low passes to the north. Noticeably cooler air will move in behind the exiting cold front with temperatures some ten degrees lower than yesterday. Showers may linger early in the day, but drier this afternoon should result in rain-free conditions across northern Alabama. It remains cool on Friday, but a warming trend this weekend will feature high temperatures back in the middle 60’s on Sunday afternoon.
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A very active weather pattern for the eastern half of the nation during the next few days which will include the first significant severe weather outbreak of the season, the first soaking rain event in weeks across the Mid-Atlantic/Northeast US, and a changeover of rain-to-accumulating snow in many areas. Severe thunderstorms later today and tonight in the Deep South/Tennessee Valley will be capable of producing torrential rainfall, large hail, damaging wind gusts and tornadoes. A particularly dangerous situation is likely to develop later today in the Mississippi/Alabama region where numerous ingredients are coming together for high probabilities of severe weather. The severe weather threat will shift eastward to the Carolinas and Virginia on Thursday and continue into early Friday. The same storm system that will be contributing to the severe weather outbreak will result in a soaking rain event for the Mid-Atlantic/Northeast US on Thursday and Thursday night – the first significant rainfall in weeks in many of those locations. As colder air wraps into the low pressure system later tomorrow night, rain will change to snow in a northwest-to-southeast fashion and there can be snow all the way down into the DC-to-Philly-to-NYC corridor by early Friday.
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A very active day and night is coming to the Tennessee Valley with the chance of numerous severe thunderstorms containing damaging wind gusts and heavy rain. In addition to the threat of damaging winds and heavy rain, hail and even isolated tornadoes are on the table from later this morning through the evening hours. The unsettled weather is being caused in part by a very strong upper-level low pressure system that is now moving east from the middle of the country. Strong surface low pressure will develop over the OK/TX Panhandles later today as this upper-level feature passes overhead. Southwesterly flow aloft in this area will increase moisture levels and - as a warm front pushes to the north - showers and thunderstorms are likely to break out in the Tennessee Valley and they may come in three different waves.
Round 1 may take place in the morning hours as a warm front pushes northward through the region. Later today and following the passage of the warm front, round 2 will take place with scattered convection in a warm and humid air mass. Finally, another line of storms can develop tonight ahead of an advancing cold frontal system. The bottom line…all of northern Alabama and southern Tennessee needs to prepare for the potential of numerous severe storms through the day and evening hours.
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Showers and thunderstorms will remain a threat in the area for the next couple of days and there can be some severe weather on Wednesday and Wednesday night. The combination of strong surface low pressure to our west on Wednesday, a northward advancing warm front and a deep upper-level will bring the chance for numerous severe storms on Wednesday into Wednesday night across northern Alabama and southern Tennessee. The passage of a cool front later in the week will bring us some drying and it’ll turn noticeably cooler by Friday afternoon with highs likely confined to the upper 50’s.
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The new work week will get off to a wet start as a cold front pushes through the Tennessee Valley and likely generates showers and thunderstorms. This frontal system is associated with the deep upper-level trough that contributed to the big snowstorm this weekend across the central/northern Rockies. Another trough will follow on its heels tracking from west-to-east and keep us unsettled into mid-week with additional showers and thunderstorms possible and some of the rain can be heavy at times. The passage of a cool front will bring us some drying by the end of the week and it’ll turn noticeably cooler with highs by Friday afternoon likely confined to the middle 50’s.
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Unseasonably warm weather will continue in the Tennessee Valley for the next several days. Strong high pressure remains stationed over the western Atlantic Ocean and it has promoted this warm up across the eastern states by producing a broad southwesterly flow of air on its backside. Temperatures over the next several days are likely to climb into the 70’s across northern Alabama and this is above the norm for the middle of March which is right around 63 degrees for the Huntsville area. One final note, this weekend is the time once again to turn the clocks ahead by one hour as we switch back to daylight savings time.
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An unseasonably warm weather pattern will continue here for the next several days. Strong high pressure is drifting over the western Atlantic Ocean and it has promoted this warm up across the eastern states by producing a broad southwesterly flow of air on its backside. Temperatures over the next several days are likely to peak at 70 degrees or above across northern Alabama and this is well above the norm for this time of year which is right around 63 degrees for the Huntsville area.
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