The Lower Thames Conservation Authority is warning area residents of the possibility of flooding over the next few days as temperatures warm up.
As weather forecasts are calling for 10 to 20 mm of rain by the end of the week, the rain will also melt the remaining snow over the next few days.
The conservation authority said the increased risk of flooding is due to the roadside and agricultural ditches that are still filled with snow and ice, making it difficult for the water to drain.
The Upper Thames watershed around London is facing even more of a challenge.
Snow surveys suggest that if the snow pack there melts it would produce the equivalent of 100 mm of rain.
On top of that, another 20 to 35 mm of rainfall is expected for that region in the coming days.