9/18 – Rob Knight’s “Final Weekend of Summer” Forecast
As Tropical Depression 22 creeps northward over the western Gulf of Mexico, clouds and rainfall is expected through the final weekend of summer. Light rain will affect the area this weekend, but any heavy rain looks to remain offshore for the most part, with any significant threat of lightning also remaining over the Gulf of Mexico.
With a persistent moderate easterly flow (around 20 mph) setting up over the coastal waters beginning Saturday morning, tide levels will increase near east-facing shorelines late in the weekend.
Current TD 22 is forecast to remain near the Texas coast through much or all of the work week next week. With a surface high off to the northeast, and the TD along the Texas coast, this will keep a persistent easterly flow across the area. While the frontal boundary is likely to remain offshore, there is at least some potential for one or two surges of significant precipitation onshore somewhere around Tuesday or Wednesday, with the main threat to the south of the Interstate 10 corridor. It should be noted that the eventual track of current TD 22 is a highly uncertain forecast.