Get ready to crank up the AC and pack an umbrella, Tampa Bay! This weekend promises to be a scorcher with a healthy dose of thunderstorms. The National Weather Service predicts highs hovering around 90 degrees throughout Saturday and Sunday. Lows will offer little reprieve, staying near 77 degrees. Humidity will be a major player, making it feel even warmer. The biggest concern for the weekend is the chance of scattered showers and thunderstorms. Each day carries the risk of downpours, particularly in the afternoons and evenings. These storms could bring brief periods of heavy rain and gusty w…