 And in Baltimore County, a malfunctioning traffic signal. Delaney Valley Road and Old Bosley Road causing unusually heavy traffic on both roads approaching that intersection. WBAL-TV 11 weather tonight. Thunderstorms this evening, then clear skies after midnight and a low of 75 degrees. Tomorrow, Tuesday, sunny early on and scattered thunderstorms developing late in the day and a high of 101. I'm Mary Ann Perry, WBAL Newsradio 1090 and FM 101.5.