Thunderstorm Outlook for Day 1
No impacts except for southern Maritimes marine waters.
Regional Impacts
Newfoundland and Labrador and the Maritimes: none for today and Sunday.
Nova Scotia Marine: reasonable chance for thunderstorms over slope waters, diminishing to a chance south of coastal waters.
Convective Discussion
A combination of low moisture, negligible instability and high shear for the Maritimes will prevent any significant convection. For Labrador a ridge building in from the west, combined with low moisture and instability and cooling will prevent anything significant.
For the slope water near the North Wall of the Gulf Stream, surface temperatures and precipitable water levels of 30-40 mm and light to moderate shear support scattered air mass thunderstorms along the North Wall of the Gulf Stream, with decreasing likelihood going farther north. This should continue today, tonight and tomorrow.
Thunderstorm Outlook for Day 2
