The Met Office has issued a yellow 'Be Aware' wind warning for the Western Isles.
The warning is in place from 6am on Wednesday to 6pm on Thursday.
Cold and blustery westerly winds are expected to bring heavy and frequent wintry showers across northern and western Scotland on Wednesday and Thursday.
Gales are likely at times along the west coast and the Northern Isles with winds gusting to around 55 mph. The strongest of the winds should ease later on Thursday.
Frequent lightning may be an additional hazard across the Northern and Western Isles and the west coast in particular with the potential for disruption to power supplies.
Upland areas are expected to see some appreciable snowfalls with accumulations of 5 to 10 cm possible on higher routes across the western and central Highlands.
Some slushy accumulations are also possible at lower elevations at times. Ice is likely to form on untreated surfaces on Wednesday night into Thursday morning.