4WARN Weather Alert is in effect for Tuesday evening for the likelihood that severe thunderstorms pass through Middle Tennessee. Warm moist air will move in across the Mid State before a cold front moves through late tomorrow night.
Tonight will stay mild as the wind shifts to a southerly direction as a warm front moves through. Tomorrow will turn windy and very warm. Highs unseasonably warm in the 70s. The winds have prompted a Wind Advisory with sustained winds expected to be 20-30 mph. with higher gusts. Good idea to secure lawn furniture and trash cans tomorrow.
Tomorrow evening, a line of strong-severe thunderstorms will pass through. Damaging wind is the main severe threat. Severe thunderstorms are most likely over northwestern Middle Tennessee and least likely over southeastern Middle Tennessee. The storms will enter from the northwest around sunset, pass through Nashville around 9-10pm, and will exit to the east just after midnight. Here is the latest Futurecast timing.
The most likely area for severe storms at this time is northwest Middle Tennessee where there is an Enhanced risk zone, a 3 on the 1-5 scale, highlighted in the orange. A Slight risk zone is in yellow, that’s 2 on the 1-5 scale.
The greatest threat will be damaging wind, but some large hail and isolated tornadoes are also possible.
Wednesday will be much cooler. Thursday morning will be frosty, with some areas at or below 32 degrees. Friday into Saturday will turn unsettled again.
I’ll have an update on News 4 at 10pm.