Wimborne Road is closed in both directions due to a serious accident between Tarrant Rushton turnoff and Tarrant Keyneston crossroads.
The accident is outside the Ashley Wood golf club, and the road is likely to remain closed until mid afternoon.
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Strong gusts overnight with gales in coastal areas and rain moving east through the early evening with hail in places.
It will be windy overnight with rain later in the evening. There may be sleet in places.