We are reading in the newspapers in the USA that problems seem to grow due to cargo being diverted from the US West Coast (which is in danger of dockers strike)  to the US East Coast:

The consequences of diversions to avoid the West Coast longshore talks are becoming more apparent. A Florida freight forwarder is warning customers shipping from Asia to the U.S. East Coast that delays of up to three weeks are being seen on that route due to excessive flows of cargo. Higher freight rates on that route, GRIs holding and higher East Coast port volumes all point to the current, albeit temporary surge. With higher volumes overall due to the improving U.S. economy, this is one more hassle that shippers are dealing with in what is turning out to be quite a problematic year.