Regional Impacts
Slight risk of a thunderstorm giving brief moderate downpour for Valley and Central NS, PEI, and southern NB.
Convective Discussion
Some instability is expected this afternoon but it will manifest itself mostly in the low levels (below 3000m). Precipitable water range from 25-32 mm over southern portions of the Maritimes – hence the possibility of a brief downpour from towering clouds. Some regions have slightly higher dewpoints, and some will experience more surface heating from the sun - this greater instability could lead to the development of isolated thunderstorms.
Large high pressure cell over northern Quebec giving stable and dry air mass over Newfoundland and Labrador. Available energy is 0, and the precipitable water is an anemic 9mm at Stephenville.
Thunderstorm Outlook for Day 1
Thunderstorm Outlook for Day 2
