With high pressure just to our northeast and southerly flow dominating, temperatures will again be warm and muggy today. Comparing temps to the average for this time of the year, some locations could be as warm as 10 degrees above average. The average high in Knoxville for this time of the year is 84, and we are expecting highs around 90.
As we progress forward, rain chances return to East Tennessee. After a stent of nearly a week without a drop, a cold front and Tropical system will bring showers/storms to the area. Looking at the 7-day rainfall expectations, we could see anywhere between 0.25 and 1 inches of rainfall. This will depend on the track of Nicholas as well as the cold front working east. For now, not expecting any heavy rainfall this week, but scattered showers and a few embedded storms are possible each afternoon starting tomorrow.
Looking at "future radar", isolated showers find us tomorrow before a cold front arrives for Wednesday. This will bring us our best chance of showers and embedded storms for the week with the aid of Nicholas to our south. Lingering activity will be possible each afternoon through the end of the work week and into parts of the weekend. Highs will stay on the warmer side, averaging in the mid 80s.
Nicholas is expected to make landfall tonight, bringing heavy rainfall to parts of Texas and Louisiana. This will slowly work northeast, bringing the potential for rainfall across East Tennessee in addition to the passing cold front midweek. We also want to mention the haze in the sky. Wildfires out west are producing smoke that is being drawn into the region (specifically to our west). This creates great sunrise/sunset colors but poor air quality for some.
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