No wave period or height forecasts for the Caspian Sea are currently available.
The Caspian Sea has a total surface area of 371,000 km2, representing ample space for significant wind swell to develop. This can be caused, for example, in the event of a stray sirocco storm system spinning out of control across the Mediterranean Sea and moving across Turkey to the Caspian region. Such an event is most likely to occur during November or December, although it is relatively uncommon. Nevertheless, wind swell has been significant enough to sink shipping in the Caspian Sea, even in recent times.