A rainfall warning has been issued for parts of southern Ontario as heavy rain moves across the region, including here in Norfolk County.
Environment Canada issued the yellow rainfall warning early Wednesday morning, advising residents to prepare for periods of rain that could be heavy at times throughout the day.
Forecasters say rainfall totals of between 20 and 40 millimetres are expected across much of southern Ontario.
Some locations could see higher totals if thunderstorms develop within the weather system.
The rainfall is being driven by a series of low-pressure systems moving through the region.
Meteorologists say these systems are expected to bring widespread precipitation beginning Wednesday morning and continuing through the day.
One of the main concerns is the condition of the ground across the region.
In many areas, the soil remains either saturated from previous precipitation or frozen following winter weather.
When heavy rain falls on ground that cannot easily absorb moisture, runoff can increase quickly.
That runoff may lead to water pooling on roads, drainage systems becoming overwhelmed, and localized flooding in low-lying areas.
Environment Canada warns that drivers should be particularly cautious while travelling in these conditions.
Standing water can form quickly on roadways, especially in areas with poor drainage.
Officials stress that motorists should never attempt to drive through flooded roads, as water depth can be difficult to judge and road surfaces may be compromised.
Residents are also being advised to avoid low-lying areas that are prone to flooding and to watch for possible washouts near rivers, creeks and culverts.
People who live near waterways are encouraged to monitor water levels closely throughout the day as rainfall continues.
Officials say anyone looking for updated flood information should consult their local conservation authority or the Ontario Ministry of Natural Resources.
Additional flood information and updates are also available through the province’s flood monitoring website.
Environment Canada says forecast confidence for the rainfall event is high and will continue monitoring the situation as the weather system moves through the province.