Rising air leads to thunderstorms many times, and that’s been the case for two days this week. Looks like we’ll be seeing the same outcome in the afternoons in spots for the rest of the week as well. Welcome to the Tri-Cities Weather Blog forecast for tonight through the weekend!
Tonight-Evening showers lingering, partly cloudy overnight. Low 59. (NOTE: A Severe Thunderstorm Warning is up for southern Hawkins County tonight until 7pm, so hail and high winds are possible with storms coming in over the next few hours!)
Wednesday-Partly cloudy at least into the early afternoon, with showers and storms popping up late. High near 80.
Wednesday night-Evening rain showers then partly cloudy overnight, low near 60.
Thursday-Partly sunny with a few showers and storms possible in the afternoon and evening. High 83.
Friday-Partly cloudy with afternoon pop-up storms, high 84.
Weekend-Partly cloudy with afternoon showers and storms each day, with better chances of storms on Saturday. Highs in the low to mid 80’s.
Way up in the atmosphere, generally at and above where planes fly, low pressure is right above us. Simply put, that makes it easy for the air to rise. Once we get into the heat of the afternoon, that and lots of juicy air combine to create nice, big puffy cumulus clouds that become cumulonimbus clouds. That means thunderstorms, and we’ve had those scattered around today. A couple of them have been quite strong, with one severe thunderstorm warning early this afternoon for folks near Kingsport.
As is normally the case even with low pressure in our upper atmosphere, we’ll see the storms die off each evening for the most part. So look for rain showers to continue off and on until shortly after dark, and then those storms will die off for the night. The sky will become partly cloudy when that takes place, and we’ll have temperatures dropping to around 59 degrees overnight.
After that happens in the morning, Wednesday will look a lot like Tuesday did. It will be a partly cloudy day, with showers and storms developing in the afternoon. Most of these could be in the eastern parts of the area, with many of us potentially staying dry during the day. Look for highs around 80…maybe warmer for dry locations. Rain will continue through the evening until dark, with partly cloudy conditions overnight once again, with lows near 60.
This is most definitely a summertime weather pattern, with about 10 degrees difference in high temperatures. Give it a month or so, and we’ll be talking about this weather with temperatures close to 90. As it is, most of us will stay in the low 80’s on Thursday as the same thing plays out. Partly cloudy early in the day, with storms in the afternoon. Highs will be near 83 on Thursday, and with a similar forecast on Friday, we’ll bump up to 84.
As for the weekend, the best chance of rain will be scattered storms on Saturday as we warm up to around 83. I think most of us get dry weather on Sunday, with a couple pop-up storms, and highs around 85.
Thanks for checking here for the forecast, have a great Wednesday!