A2220 Copthorne Road in both directions closed due to accident, two vehicles involved between B2036 Balcombe Road (Shipley Bridge) and A264 Copthorne Common Road / Brookhill Road (Copthorne).
The road is closed either side of the M23, following a collision near to Crawley Garden Centre. Eyewitnesses describe the traffic as 'chaos'.
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Holly has the latest forecast for the west of the region.
The latest forecast for the east of the region from Holly.