Windy Sunday, Widespread Rain and Storms
A large and powerful storm system will be affecting the Tennessee Valley in waves over the next several days with periods of heavy rain likely. Tonight, we’ll begin to see the first effects of this system in the form of increasing clouds and breezes, but the bulk of the rain should hold off until after mid-day tomorrow.
The overall severe weather threat is fairly low, but some stronger thunderstorms will be possible with occasional winds to 60mph a possibility. The highest likelihood for severe thunderstorms will be tomorrow evening, from about 6PM to 10PM, in the Southwest Tennessee Valley. Instability will be very limited, but even weak thunderstorms will be bolstered by strong environmental winds.
Even without thunderstorms tomorrow, the winds generated by this system are expected to very strong with gusts over 30mph likely during the afternoon. A wind advisory is in effect for the entire Tennessee Valley from 9AM to 9PM Sunday.
The highest threat from this system will most likely be the heavy rain. Soil moisture content around the region is already very high from the wet conditions we’ve been seeing over the past month, and with 2 to 3 additional inches possible tomorrow afternoon and evening, flooding may become an issue.