Drivers have been warned to take care this morning due to thick fog in places. Brits in several regions have woken to a blanket of fog, though it is thickest across Norfolk and Suffolk in the East of England. It has led to reduced visibility, to 100m or below in places, and therefore conditions on roads will be hazardous. The Met Office , which has issued a yellow weather warning for Norfolk and Suffolk, says: "Visibility is likely to be quite variable across this region, with low cloud sitting