Although it will be drier in the east and north today, driving conditions could be hazardous with overnight frost and lingering fog this morning.
This comes just eight days after Storm Eleanor left much of Galway city and Limerick under water when winds of up to 130kmh, coupled with high tides, caused widespread coastal flooding.
Mr Wilson said: "There is a lot of radiation fog around at the moment".
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Chief forecaster Andy Page said it will thicken over the next few hours and warned to expect rush-hour travel problems.
The yellow warning is in place until 11am this morning.
"Slower journey times are possible and there is a chance of delays to flights". Some patches of fog will form and also some frost.
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The warning covers Northern Ireland, Wales, north-west England, south-east England, West Midlands, Yorkshire and Humber and south-east England. Afternoon temperatures will range from 5° to 9°, while it will be coldest in the north.
"Radiation fogs usually dissipate soon after sunrise as the ground warms".
"This reduces the ability of the air to hold moisture, allowing condensation and fog to occur". Lowest temperatures are expected to be 4° to 8°.
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