A rare weather event expected for southern Ontario on Tuesday: a rainy day.
Most people have heard the expression, ‘when it rains, it pours’. It loosely means, when something happens it can happen repeatedly thereafter.
Following what may be the most significant summer rainfall for many locales in southern Ontario yesterday, that expression may be on peoples’ lips again on Tuesday. A slow-moving low pressure system over eastern Texas is forecast to drift northwards over the next couple of days reaching the lower Great Lakes on Tuesday. It will tap the same tropical moisture which has been responsible for flooding rains across Louisiana. That extreme rainfall is not forecast for Southern Ontario. However, the most significant widespread rainfall in many months is likely, with amounts ranging from 25 to 40 mm in most places. There may be appreciably higher amounts exceeding 60 mm in some locales.
Rainfall warnings may be issued if a more significant event of widespread 50 mm or more appears more certain.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to storm.ontario@ec.gc.ca or tweet reports to #ONStorm.
