10 PM UPDATE: A line of storms tracking through Tennessee will brush Northwest Alabama between midnight and 2 AM Thursday night/Friday morning. Severe thunderstorms are not likely. Storms can bring some heavy rain - a quick inch of rain - and intense lightning. Winds of 30-40 mph are possible, too. Stronger storms are possible west of us over Mississippi.
Weather will continue improving all across the Tennessee Valley. The threat for severe thunderstorms has ended for nearly all of the Valley, but if any new development occurs along the Mississippi state line, it can intensify quickly.
The last of this rain and any lingering showers will diminish before 7 PM. The rest of tonight will be mostly cloudy and muggy. Areas of fog developing after midnight will reduce the visibility for your Friday morning drive. You may to plan ahead and set that wake up alarm a little earlier to account for slower speeds getting to work.
Friday will be partly to mostly cloudy. Some spotty showers will form in the afternoon, but widespread rain and storms are not likely. The few storms that do develop are not likely to become severe. The heat may be the bigger issue. Temperatures will warm from muggy 70s in the morning to the low-to-mid 90s in the afternoon. Those 90s will feel more like 100-105 when we account for the humidity. Go easy outside and take frequent cool breaks if you will be out in the intense heat for prolonged periods of time.