A yellow weather warning on Island has been upgraded to Amber - with 'persistent and heavy' snow forecast over the next 24 hours.
Ronaldsway Met Office says the warning is in place from midday tomorow until 6am on Friday.
Forecasters say heavy accumulations of snow are possible at all levels on Island and will be accompanied by strong to near-gale force winds, leading to blizzards and drifting.
It adds cable icing could also be an issue for overhead conductors in some location and there's a high risk of disruption to travel and, perhaps, for network services.

Manx Telecom to merge with Jersey Telecom
Manx government yet to assess impact of digital ID scheme
Thirty hospital fires in seven years, says Manx Care
Which buses are the most punctual?
Dangerous trees mean road closure for Port St Mary
Island's most famous bird dies
Heritage charity asks members to update details after manx.net changes
Government publishes praise for new school meals