The risk for severe thunderstorms is increasing across the Tennessee Valley for Monday and Tuesday.
Forecasting a severe weather risk is like putting together a puzzle. Thursday's threat had pieces of that puzzle missing. We told you that all along, and it mostly played in our favor. The pieces of the puzzle for Monday and Tuesday are all present. The risk for high impact severe weather appears to be higher and growing every time we get new data.
Monday's threats from severe thunderstorms include tornadoes, destructive winds over 60 mph, large hail more than an inch in diameter and heavy rainfall.
The timing is subject to change as new data is available over the weekend. The arrival times are broad, and we will narrow down the timing over the weekend. The earliest the risk for when dangerous weather will begin appears to be between 6 PM and midnight Monday. The risk will last possibly as long as 9 AM to 3 PM Tuesday. The risk is dangerous enough, but that danger level will be higher if this storm system hits at night.
Be sure to stay updated on new information. Don't look at one forecast and assume it will be the same in three or four days. The evolution of this storm system will affect timing, intensity, exact locations and the level of impact. All of those factors can change. We will have all of the latest information through the weekend on WAAY 31 News, at WAAYTV.com and on the WAAY 31 Storm Tracker Weather App.
In the mean time, the weekend will be sunny. Saturday starts with chilly upper 30s and lower 40s and warms into the 60s in the afternoon. Sunday will start with mid-40s and warm to near 70 in the afternoon beneath increasing clouds. Don't let the calm weekend weather allow you to let down your guard for Monday. Also, don't forget Daylight Saving Time ends at 2 AM Sunday, which is when we "fall back" with resetting our clocks.