An extremely deep low pressure storm is due to pass very close to the Hebrides on Thursday night and Friday morning.
There are warning that wind gusts may reach 100mph, causing damage and disruption.
Eddie Graham, weather correspondent for the Gazette, advises that all non-essential travel be avoided, and recommends that people stay safely indoors during the height of the storm which is expected to peak during the early hours of Friday morning.
The exact path of the storm system will dictate where the strongest winds are most likely to occur - at the moment these are forecast for the north of Lewis - but all areas are at risk from violent-storm force winds.
A further storm is possible Friday night/Saturday morning too, followed by the chance of snow on Saturday.
Pictured is NASA image of a low pressure storm.