READYNOTIFYPA: Tornado Watch until 10:00PM. Conditions favorable for severe thunderstorms with possible tornadoes. This watch means that conditions are favorable for the development of severe thunderstorms with possible tornadoes. Hail and strong winds are also possible. Persons in the watch area should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. For additional updates and weather information, visit www.weather.gov/phi