During winter and early spring, boating is frequently cancelled from anchorage positions in the inner and outer harbors due to westerly winds. Bottom is mostly good holding ground of mud, sand and seaweed. Priolo are shallow and not considered to be safe havens for large vessels in heavy weather. Morning haze and fog create the poorest conditions, but dissipate rapidly during morning hours. Inner harbor protected from full impact of wind generated sea but wind force can adversely impact small boat operations in the inner harbor.
Wind can cause ships to drag anchor.
Combined effects of wind and sea can impact the ability of harbor pilots to leave port and meet incoming vessels. When strong winds from the east quadrant are forecast, it is best to leave port and head for open sea. May last up to 5 days. May be reinforced by flow through the Strait of Messina. Brings East to Southeast winds.