The Essex Region Conservation Authority has issued an advisory as the region remains under a rainfall warning.
Environment Canada expects 25-35 mm of rain to fall in the region beginning overnight tonight.
ERCA's Co-ordinator of Flood Erosion Control Tim Byrne says if that occurs, there will be significant standing water.
He says the ground right now is snow covered or frozen and depending on the timing of the thaw, there could be a concern for the accumulation of standing water in low lying areas through the Essex region.
There is also the potential for ice bridging at bridge and culvert locations due to flow within the waterways.
Byrne says municipalities are going to have to start thinking long-term when it comes to these weather patterns.
"Having to respond to significant numbers of freeze-thaw cycles, our infrastructure historically was not geared to respond to that and so it creates problems for our public works personnel, municipalities and most importantly our rate payers," says Byrne.
Temperatures are expected to rise to 10C.
The advisory remains in effect until Tuesday 12pm.