A tornado watch means conditions are favorable for the development of tornadoes.
There was also a severe thunderstorm warning for the city, Baltimore, Harford, northern Arundel and eastern Howard until 1 p.m. A line of thunderstorms capable of producing 60 mph winds was detected southwest of Fort Meade just after noon.
Showers and possibly a line of thunderstorms were forecast in the Baltimore area Friday, with mild temperatures.
Showers and isolated thunderstorms were expected in the morning hours, with temperatures reaching the 40s and lower 50s through midday.
A cold front behind the storms was forecast to drop temperatures back into the 40s, with clear and sunny skies, by the afternoon.
A mild weekend is ahead, with highs in the upper 50s both Saturday and Sunday afternoons and lows in the upper 30s both mornings.
Temperatures were expected to drop back close to freezing by early Monday, with highs in the mid-40s.
Lows could drop back into the 20s Tuesday and Wednesday mornings, with a chance for a wintry mix or snow Tuesday into Wednesday.