Mostly clear and muggy conditions remain in place over the region early this morning, with pre-dawn air temps ranging from 70 at Farmington, MO to 78 at Paducah, KY. Dew point temps were mostly in the low 70s. Light fog and haze was reported at a few locations.
The upper ridge that has been keeping the area hot and humid will begin weakening over the next couple days, which will allow for a slight moderation in temperatures and a general increase in shower/storm coverage. Today in particular a weak frontal boundary will be stalled across the region which should also help to act as a trigger for some widely scattered afternoon and evening T'storms. Highs this afternoon still should be about 90 to 95, with heat indices of about 100 to 105, but a few more areas may see some brief cooling from widely scattered convection and there should be a few more clouds around.
By the upcoming holiday weekend the upper ridge will have been pushed off to the southeast, and we'll have a slightly cooler and more active pattern...with a better chance of occasional showers and T'storms about Saturday through Monday. Still looking rather warm and humid with highs in the U80s to around 90....and lows near 70, but this is pretty close to average for late August. Timing of weekend rainfall/T'storms is still uncertain as a weak front is hung up in the area....so hard to pinpoint anything concrete in terms of a definite time period. In general the Saturday and Sunday periods are looking a bit wetter and Monday a bit drier and warmer.
By early next week the upper high begins to build back over the area, which should gradually shut down rain chances and increase temperatures again, though not to the extent that we've seen recently. None the less, the first week of September is looking once again a bit warmer and more humid than average, at least into the following weekend.
8/28 4:00 am ba