Rain, heavy at times is expected. The frozen ground has a reduced ability to absorb this rainfall. Rain is forecast to spread into the regions this evening. The rainfall will be heavy at times, mainly through the overnight hours, and may be accompanied by a thunderstorm or two. Total rainfall amounts up to 30 mm are likely by the time the rain tapers off on Wednesday morning. Localized flooding in low-lying areas is possible. 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 email@example.com or tweet reports to #ONStorm.