Nic Lonsdale, duty watch manager at Portland Coastguard, said: "We are urging people to observe the warning signs and stay away from the edge." The cliffs at Durdle Door and Lulworth have been crumbling since the start of year.
In January, the steps to the famous landmark collapsed. Earlier this month, coastguards warned that the path was beginning to fall away.
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Manali has the latest forecast for the west of the region.
Manali Lukha has the latest weather forecast for the east of the Meridian region.
A heavily pregnant woman lost her unborn baby when she was knocked down on a pedestrian crossing, police have revealed.