There is queueing traffic and the road is partially blocked due to an accident on the M5 Northbound between J18A M49 and J16 A38 (Aztec West). Average speed ten mph. Three vehicles were involved in the crash, and one person is seriously injured.
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The evening will stay cloudy with drizzle and fog in hilly areas.
There will be early evening sunshine with a few patches of rain later on.
The Avon fire service has moved its headquarters from Bristol to share Avon and Somerset Police's Portishead base.