The A12 at Blythburgh in Suffolk is closed in both directions due to flooding between the B1125 and the A145.
The sea wall has been breached and emergency repairs will be carried out at low tide.
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Another gloomy start for many but some brighter spells will develop later.
Here's something that will warm your heart on a cold winters day. We've the latest messages in ITV News Anglia's Christmas Shout Out series.
Low cloud and fog reforming. Mild.