Answer:
Rain
Explanation:
A cold front is of a cooler mass of air, which replaces warmer mass of air of ground level and lies within a fairly sharp surface trough of low pressure.
As your area has very high humidity and a cold front is moving in, ultimately there will be continues rainfall and it will be there until cold front has moved away.
As in a cold front, warmer air mass is replaced by cold air mass, the cold air mass will combine with humidity resulting in lots and lots of rain.
