Mammatus or breast-shaped clouds often accompany unsettled weather. These appeared just around sunset this evening after a cold front moved through.
Evening clouds seen from Banksville.
Clouds reflected in the windows of a modernist office building (built in 1965) in uptown Mount Lebanon.
Looking east up the Monongahela River from Mount Washington.
As seen from the Diamond or Market Square, the surface of the tower reflects the cumulus clouds scudding through the sky.