Thunderstorm Outlook for Today
Regional Impacts
Isolated thunderstorms today over NS and southern NB with locally heavy showers possible. 20 mm or more is not out of the question.
Convective Discussion
Dynamics are not great today for severe thunderstorms, however the risk is still there but likely low. There is not much support in the upper level dynamics with no significant jet stream over the area and a lot of moisture at 700 mb. A lot of cloud over most of the area will inhibit solar insolation. Wind shear values between 20 to 30 kts will likely not be enough to help maintain long lived cells. However, there is a lot of low level moisture over the area and a marginally unstable atmosphere (500 J/kg ) associated with a broad and nearly stationary trough over the region. Any storms have a low chance of becoming severe however they could still bring quite significant rain due to the abundance of moisture (PWAT near 35 mm) and the fact that the cells will likely be slow moving.
