November 19 will see Birmingham hit by a yellow weather warning for fog as the Met Office warns it poses a “danger to life”.
Dense fog and freezing fog patches are expected this evening, according to the forecaster.
The worst-affected areas include most of the Midlands, the Home Counties, and the south east of England.
Temperatures in these regions will struggle to exceed 5C.
The Met Office has warned of slower journey times, with delays to bus and train services possible.
There is also a risk of delays or cancellations to flights in the affected areas.
Forecasters issued another danger to life warning earlier today, with temperatures plummeting well below freezing tonight.
The 400-mile Arctic wide swell marks the earliest winter snow for 11 years in some parts of the UK.
While the cold snap stays, two inches of rain will fall on Tuesday – starting in the west and other parts, including Yorkshire, that were hit by floods last week.