Slow-moving low pressure will impact the region with periods of rain from later today into Thursday and there can be a couple of thunderstorms mixed in as well. This system will slide to our south and it’ll finally give way to weak high pressure at the end of the week. Another period of unsettled weather is coming this weekend with additional rain likely in the Mid-Atlantic region.
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The weather becomes unsettled again later today with an increasing chance of showers and thunderstorms and some of the thunderstorms can be on the strong-to-severe side. Winds will become quite gusty as well today with afternoon gusts possible to 35 mph. A frontal passage will bring us cooler and wet weather conditions on Wednesday and then a warming trend should begin on Thursday along with a somewhat decreased chance of showers.
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One of the most intense solar storms in recent years produced northern lights this past weekend much farther south than usual including in tropical regions such as Mexico and Puerto Rico. It was this same time of year when the most intense geomagnetic storm of the 20th Century took place during solar cycle 15 in a 3-day period from May 13-15 in 1921. That storm occurred before the widespread electrical dependence of infrastructure that we have in today’s world, but the impact from an extraordinarily powerful coronal mass ejection was still quite extensive. The storm’s electrical current sparked a number of fires around the world including one near the Grand Central Terminal in New York City. In addition, auroras appeared throughout the eastern US creating brightly lit nighttime skies and telegraph service virtually stopped in its tracks due to blown fuses and damaged equipment. Research in recent years has suggested that this super solar storm of May 1921 was equally as intense as the granddaddy of all super storms in recorded history – the “Carrington Event of 1859”.
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An unsettled weather pattern will continue for much of the week across the Tennessee Valley. There will be a slow-moving low pressure system heading eastward from the Great Basin during the next few days and it will result in a chance of showers and storms on most days this week with locally heavy rain possible. High temperatures will range from the lower 70’s today to the low-to-mid 80’s by late in the week.
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After a wet day to finish the weekend, it turns somewhat drier and milder today, but more unsettled weather is going to make a return. The chance of showers and storms will be on the increase from later tomorrow into tomorrow night and Wednesday promises to be a cool and wet day following the passage of a cool front. A warming trend will begin on Thursday to go along with a reduced chance of showers.
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High pressure will be in control of the weather as we begin the new work week, but unsettled weather is on the way back. Slow-moving low pressure will impact the region with showers from later tomorrow into Wednesday and then another low pressure system can result in another round of rain here from later Friday into Saturday. High pressure will move in for a brief appearance in between these two systems making for a partly sunny and comfortable day on Thursday.
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High pressure will be in control of the weather as we begin the new work week, but unsettled weather is on the way back. Slow-moving low pressure will impact the region with showers from later tomorrow into Wednesday and then another low pressure system can result in another round of rain here from later Friday into Saturday. High pressure will move in for a brief appearance in between these two systems making for a partly sunny and comfortable day on Thursday.
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High pressure will be in control of the weather as we begin the new work week, but unsettled weather is on the way back. Slow-moving low pressure will impact the region with showers from later tomorrow into Wednesday and then another low pressure system can result in another round of rain here from later Friday into Saturday. High pressure will move in for a brief appearance in between these two systems making for a partly sunny and comfortable day on Thursday.
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A very large sunspot region known officially as AR3664 has unleashed a series of coronal mass ejections (CMEs) towards Earth and a “severe” geomagnetic storm is a likelihood beginning as early as tonight and lasting into the weekend. According to NOAA, the first three of these CMEs could merge and arrive later tonight and early Saturday and two others will follow close behind. This is the first “severe” watch issued by NOAA in 19 years and the results could be auroras much farther south than usual and potentially, some impacts to communications and power grid-related infrastructure.
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Drier and more comfortable air has pushed into the Tennessee Valley on the heels of a late Thursday cool frontal passage. Today’s high temperatures should be some ten degrees lower than yesterday likely in the mid-to-upper 70’s with plenty of sunshine. It stays quite comfortable this weekend and quiet each day and the turns more unsettled and warmer early next week with the return of showers and thunderstorms.
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