An accident scene on the A146 near Poringland which caused earlier traffic delays has been cleared.
Norfolk Police said disruptions were caused on the road after a lorry jackknifed earlier today.
Officers attended the scene and helped recover the vehicle.
In a separate incident, a second lorry reportedly stuck on the NDR roundabout at Horsford is causing significant backlogs.
Police have warned drivers to take care on the roads as a result of the heavy snow falls.
'We remind drivers that all vehicles should take their time when driving on the roads today.
'Heavy goods vehicle drivers are in particular advised to stay in the left hand lanes on dual carriageways due to the weather conditions.
'Our aim is for everyone to get home safely.'
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Norfolk County Council said gritters with snow ploughs attached will be going out again this afternoon on all county gritting routes.
'They may reload and go out straight away afterwards if conditions call for it,' a spokesperson said.
Another gritting run is planned for the early hours of Thursday morning if needed.
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