 WBAL News Radio 1090 and FM 101.5 News Update. Now the latest from the WBAL 24-hour broadcast center. An excessive heat warning remains in our region until 8 p.m. tonight, but there won't be a break in the heat because now there's an excessive heat watch that will take effect tomorrow morning and will last throughout the day. Heat index values could reach up to 110 degrees Fahrenheit.