The Boxing Day Storm (also called the Great Boxing Day Storm of 1998 or Hurricane Stephen) was an Atlantic windstorm that made landfall in northwest Ireland. A Great Storm on Boxing Day, with particularly strong winds across Northern Ireland and central Scotland. The Forth Road Bridge was completely closed for the first time ever. Prestwick Airport logged winds of 103 mph, and Glasgow Airport 93 mph; mild too, with 15C in the Midlands. This storm is now known in Ireland as "Hurricane Stephen".

The damage in Donegal was considerable, with wind gusts of up to 125 mph clocked by the Malin Station. It is suggested that a particularly strong jet stream had moved north of Scotland, which may have contributed to the severity.