Fog is expected to form this evening and overnight, reducing visibility down to less than 100 metres in places.
Low visibility is expected across the region, with the worst of the fog is expected overnight on Wednesday and into Thursday.
This video shows fog rolling in off the River Mersey as seen from the Radio City tower.
Merseyside has been placed on a severe weather warning for fog.
Thick fog blanketed parts of Merseyside this morning causing major travel disruption.
Wirral and Liverpool woke up to cold thick fog blanketing the area this morning.
A mysterious mist rolled on over the Mersey this evening and reduced visibility across Liverpool and Wirral.
This amazing footage was filmed at the top of the radio city tower this morning, as thick fog gripped Merseyside.
Thick fog blanketed Wirral this morning and one reader captured the weather in these very nice pictures.
Merseyside has been issued a severe weather warning for fog this morning, which is expected to last all morning.