Heavy rain on tap.

What: Rainfall amounts of 30 to 40 millimetres are expected.

When: Today and overnight tonight

Where: The Upper Gatineau to the Mauricie regions, including the Greater Montréal area.

Additional information: An intense low pressure system will bring rain to Quebec. As the ground is frozen and has a reduced ability to absorb moisture, significant amounts of water could accumulate on roads and in other areas. A significant rise in the flow and level of some rivers is also quite possible.

After that, temperatures are expected to drop overnight Wednesday night possibly leading to flash freezing of ponded water. Roads may become slippery, causing difficult travel conditions and transportation delays on Thursday morning.

###

Rainfall warnings are issued when significant rainfall is expected.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or tweet reports using #QCStorm.