Huntsville hit 90ºF for the second time in 2017 on Tuesday, and you can look forward to another hot one Wednesday!
Warmer, more humid air moves north overnight setting up a more uncomfortable day Wednesday. It gets as hot as the low-90s with a ‘feels like’ temperature between 92ºF and 95ºF in the hottest part of the day. The heat and humidity should be enough to kick off a few isolated showers or storms Wednesday afternoon and evening; however, most places get zero rainfall.
It did technically rain a little on Tuesday. It just didn’t reach the ground over Jackson County! This was a photo of virga (precipitation that evaporates before reaching the surface) from Chanda Gilliam in Flat Rock on Tuesday evening:
Setting up for some scattered storms: A strong ridge over the South kept rain away the last few days.
That ridge (high) weakens and shrinks southward Wednesday, Thursday and Friday opening the door for hit-or-miss, spotty, heat-of-the-day showers and thunderstorms.
Wednesday’s chance of rain is tiny: barely worth mentioning except for the fact that should you get underneath one it could bring a healthy downpour.
The odds are rising, though, for the rest of the week and the weekend.
So what’s in a rain chance? When you see a percentage chance of rain on the Seven Day Forecast, what does it really mean? I’ll be the first to admit that the ‘rain chance’ is a horrible way to explain what the weather is actually going to do. If it can rain an inch with a 10% chance and a tenth of an inch with a 100% chance, you really can’t get much from that.
It’s a combination of two things: (1) confidence that rain actually happens and (2) how much of our ‘area’ gets rain.