Strong winds of up to 45 miles per hour (72 km/h)
[46] blew the troop-carrying aircraft off course and the American force was scattered widely over south-east Sicily between Gela and Syracuse.
...
The strong wind also made matters difficult for the amphibious landings but also ensured surprise as many of the defenders had assumed that no one would attempt a landing in such poor conditions.
[52]
....
More trouble was experienced from the difficult weather conditions (especially on the southern beaches) and unexpected hidden offshore sandbars than from the Coastal divisions. Some troops landed in the wrong place, in the wrong order and as much as six hours behind schedule,
[57]