Luke Miall, meteorologist at the Met Office, said patches of snow could even reach down into parts of Greater London.
“The east of England is the area where we can see the highest impact from the snowfall,” he said.
“In terms of the amount of snowfall, we’re likely to see in the region of one to three centimetres quite widely within that area but potentially as much as five to 10 centimetres in some places.
“That’s a fairly decent amount of snow and enough to cause some fairly significant disruption.”
The Met Office amber warning, which covers large areas of Cambridgeshire, Essex, Hertfordshire, Norfolk and Suffolk, will be in place until 2pm on Saturday.
Leigh sees huge surge in wild swimming popularity basildonstandard.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from basildonstandard.co.uk Daily Mail and Mail on Sunday newspapers.