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A warning of ice and snow, now in effect for the Western Isles, has been extended to cover a longer period from today (Wednesday 7 December).

The Met Office yellow ‘be aware’ alert warns of showers of rain, sleet and snow falling to low levels between now and Friday at noon, with some accumulations of snow.

Up to 5cm of snow could accumulate at low levels, where areas over 200m above sea level might see 10-15cm falls.

Rain falling on cold surfaces could also lead to ice forming on roads and pavements.

Comhairle nan Eilean Siar yesterday warned drivers to adjust their driving to suit the road conditions, and gritters have been active on priority routes.

The CnES winter maintenance plan says that the technical services department aims to provide a winter maintenance service which allows the safe movement of traffic and keeps to a minimum the impacts caused by adverse winter conditions.

In the policy statement, which has not been updated for 2022, roads around the islands are divided into geographical zones and into priority routes.

Gritting is expected to begin no earlier than 6am and to be complete on priority 1 routes (coloured green) by 7.30am, on priority 2 routes (coloured blue) by 8.30am and priority 3 routes (red) by 9.30am.

You can see more about gritting priorities in each area at

The current winter maintenance policy, for 2018-21, is available at

The plan shows gritting priorities on roads around Stornoway and the Broad Bay area (CnES).