Regional Impacts
Today
NL: Scattered thunderstorms with small hail, downpours and gusty winds
NB/NS/PEI: Isolated thunderstorms.
Labrador: None.
Tonight
NB/PEI/NL/NS/Labrador: None.
Saturday
NS: Isolated thundershowers
NB/PEI/NL/Labrador: None
Convective Discussion
A weakening cold front over central New Brunswick will track southeastward to lie on a line stretching from Newfoundland to Nova Scotia tonight. There is not much shear (20 kts and linear) over the Maritimes and the ML Cape is 500-1000 J/kg. PWAT values of 35-45 mm may allow downpours if the convection initiates. With the low shear, training cells giving high rainfall potential is the most obvious threat. Over Newfoundland the shear is 20-30 kts so more organized thunderstorms are likely. Dry mid levels support wind gusts to 70 km/h. Also downpours are likely with PWAT values of 35-45 mm. Small hail is also a possibility. Tonight and Saturday little convection is expected. The front may linger over western Nova Scotia Saturday afternoon giving the risk of a thundershower.
Thunderstorm outlook for today
Thunderstorm outlook for tonight
Thunderstorm outlook for Saturday
