Unfortunately but rarely the Meltemi can blow for a week or more. Also the Mistral, the one responsible for this accident can blow for several days, sometimes a week and the Sirocco can also blow for several days. The Bora rarely blows more than a day or two but it can be incredibly violent. The record in a gust is over 250km/h and sometimes it just take the fish out of the water and throw them to land. It can do the same with a boatMost of the storms in the Med are cyclonic, so the wind is always changing direction, tiring the crew with excessive sail handling. After a while the seas begin to bounce back from the coasts, all the coasts, because the wind can do 360 degrees in 24 hours or less and remain about 40 knots for the duration, so the seas can be large and confused.
In the Eastern Med, the Meltemi, a wind that can bring about harsh sailing conditions, also can be characterized as one of the few Mediterranean winds that do not necessarily die out at the end of the day and can easily last more than three to six days.
Often, not a pleasant place to sail, it is very expensive and for Americans, Schengen makes it very uninviting right now.