Scattered showers and storms have again made themselves at home across portions of the Tri-State - these should push north of the region and dissipate by 7PM or so. Conditions following that point should be drier and relatively pleasant; while humidity will still be quite high, temperatures will remain in the upper 70s and low 80s this evening. In fact, overnight low temperatures will only fall into the mid 70s area-wide thanks to the advancing tropical system formerly know as Hurricane Laura.
Tropical Storm Laura continues to weaken as it pushes further inland; currently centralized over Southern Arkansas, the tropical system is still producing 50 mph wind speeds and significant amounts of rainfall. The Tri-State could receive its first rainfall associated with Laura as early as tonight, though the heaviest and most sustained rainfall should hold off until late tomorrow morning. It looks as though the greatest threat for heavy rainfall will occur between 10 AM and 10 PM on Friday.
The heaviest of that rainfall will likely be relegated to our Kentuckian counties. A Flash Flood Watch has been issued for Hardin (IL), Crittenden, Caldwell, Webster, Hopkins, McLean and Muhlenberg Counties that goes into effect at 7 AM Friday and will last though 1 AM Saturday. These areas may receive between 1" to 2" of precipitation over the 12 hour period in question. Additionally, There's a possibility for Severe Weather on Friday as well.
The Storm Prediction Center of America has placed the entire region under a "1" and a "2" on the Threat Index for Friday afternoon and evening. The tropical nature of Laura's remnants will create an environment favorable for the development of broad rotation aloft; some of the areas of rotation may produce brief funnel clouds or even tornadoes (especially south of the Ohio). There's also the possibility for damaging straight line winds with some of the storms embedded within the then Tropical Depression.
Remember to remain "Weather Aware" on Friday.
Wear Your Mask.