There is nothing unusual about getting a rainy round of weather in the Maritimes in the month of September, but the timing of this one though is a bit inconvenient as it drags into Labour Day long weekend. The other snag with the system is that it may tap into some subtropical moisture increasing the risk of downpours and thunderstorms which could make for some adverse road travel. Here’s a breakdown of the travel outlook for each Maritime province. New Brunswick Nova Scotia Prince Edward Island Stay on top of the forecast. It isn’t unusual for a slow-moving system like this to need updates as it develops and moves in. Watch for more timing information in any further statements or alerts issued by Environment Canada. If travelling a long distance across the Maritimes keep in mind the system could impact your origin and destination very differently. Rain totals The most moisture and hence higher chance of more prolonged heavy rain is expected to be focused on eastern areas of Nova Scotia and Prince Edward Island. That part of the Maritimes has the highest risk of some rain amounts reaching 50-to-100 mm by early Sunday morning. There is a lower risk of localized rain amounts of 40-to-60 mm for the remainder of the Maritimes and would only occur if multiple downpours or a thunderstorm moved through. Otherwise, I expect a general 15-to-40 mm a manageable amount of rain. Check that property drainage is free and clear to help water drain away.