Widespread Showers Bring Heavy Rain, Flash Flood Potential
Wednesday, September 15, 2021 · Carter Hunt
Let’s get right into it. A Flash Flood Watch was issued earlier this morning including our counties. It’s in effect until 7pm tonight as of now. Keep a close eye on your weather alert apps in case Flash Flood Warnings are issued.
HRRR model data thinks heavy rain will pivot into Will Co and Davidson Co in a few hours, then leave us alone later this afternoon.
I may date this data but I'm not marrying it, due to low confidence in the model, also my commitment issues. pic.twitter.com/e5hz8tUShz
— NashSevereWx (@NashSevereWx) September 15, 2021
These storms/showers are pretty slow… NWS notes that 1 to 2 inches will be common, but a quick 3 to 4 inches will be possible in a few places. Be mindful of this if you’re in a low-lying area prone to flooding.
Nothing severe expected today. Maybe some thunder, but slow-moving storms holding lots of rain is the focus. The front that’s bringing us all this rain should move out this evening. And with it the rainfall.
HRRR Composite Reflectivity, valid Wed. 10am – Thu. 12am
Warm and Muggy Few Days Ahead
Moisture is hanging around with us, annnd so is the humidity. Dewps in the high 60s keep us firmly in that uncomfortable category. Not going away anytime soon. They don’t care that we’re closer to October than July.
As far as the rain outlook, it stays pretty consistent for the coming days. Here’s an excerpt from the noontime Area Forecast Discussion from NWS Nashville…
at least diurnal rain chances will be
possible Thursday, Friday and Saturday -- but Sunday could be
totally dry.
Not as much rain as today through the week, but rain chances none the less. Right now it looks like Sunday could be our next dry day, but stick with us in case that time comes sooner (or later).