The most recent update from PAT —

Port Authority has shut down all T light rail service until conditions improve.

Extreme weather conditions have caused numerous issues on the T lines and bus routes. All but one bus route (EBA) remains shut down this morning.

One EBA – East Busway All Stops bus is providing limited service on the East Busway between Swissvale and Penn Station. The bus will not enter Downtown Pittsburgh due to the current road conditions.

Port Authority will continue to provide service updates through the morning at portauthority.org and at its Twitter site, twitter.com/pghtransit.