Regional Impacts…
Today
NB/NS/PEI/NL: A chance of thunderstorms.
Labrador: None.
Tonight
NB/NS/PEI/NL: A chance of thunderstorms.
Labrador: None.
Sunday
NB/PEI/Labrador: A chance of thunderstorms. Over New Brunswick, surface based storms will may give severe weather in the afternoon.
NS/NL: None.
Convective Discussion…
A trough of low pressure tracking across the Maritimes will give a chance of embedded thundershowers for those areas today. There is the potential for heavy rain at times as PWAT values are 30-50 mm. Surface based thundershowers are possible this afternoon over portions of Newfoundland but the CAPE values are less than 500 J/kg so they should stay non-severe. On Sunday, surface based thundershowers are expected over most of New Brunswick and portions of Labrador. Over Labrador the CAPE values are expected to be less than 500 J/kg so non-severe cells are expected. Over New Brunswick, CAPE values near 1000 J/kg and shear of 30-40 knots will help support possible severe thunderstorms.
Thunderstorm Outlook for Today
Thunderstorm Outlook for Tonight
Thunderstorm Outlook for Tomorrow