Situation to be reassessed tomorrow at midday
The current closures on the A18 Mountain Road, Tholt Y Will Road and Beinn y Phott Road have all been extended until midday tomorrow (Saturday 10 March).
The Department of Infrastructure has confirmed the situation will be reassessed at that point.
The closure on the Mountain Road does not include the route from Hillberry, and the Creg Ny Baa remains accessible from Douglas and Onchan.
Elsewhere, the closure on the A3 from Ramsey to Castletown Road has been extended until midday tomorrow.
Highway services says due to last night's snowfall, multiple tress have gone down.
Currently there is a team working along the road removing them and more staff and equipment will join as other roads and estates become clear.