Flooding in New York City created a waterfall in the underground tunnels of the subway system on Thursday (July 31). New York Governor Kathy Hochul and her acting counterpart in New Jersey said they were declaring states of emergency for areas facing the threat of extreme flash floods forecast for much of the Eastern Seaboard.

Subway riders were experiencing hours-long suspensions and delays for the second time in two days Thursday, after another power outage caused signal problems at Manhattan’s West Fourth Street station.