Convective Discussion
A ridge of high pressure will continue to maintain fair conditions over the region today. Moisture from a frontal system currently south of New England is starting push northward. The leading edge of the high cloud is already over the Maritimes and it should move over southern Newfoundland this afternoon. The stream of moisture, along with some instability, will reach Nova Scotia tonight bringing an increase in the likelihood of thundershowers. Isolated thundershowers are expected over westernmost regions later this evening, and after midnight for the rest of southwestern shore.
Regional Impacts
Localised downpours giving 20+mm are expected over western Nova Scotia.
Jean-Marc