Regional Impacts…
Today
Labrador: A chance of thunderstorms north coast.
NB/NS/PEI/NL: None.
Tonight
NB/NS: A chance of embedded thunderstorms.
PEI/NL/Labrador: None.
Sunday
NB/NS/PEI/NL: A chance of embedded thunderstorms. Over New Brunswick, surface based storms will likely give severe weather in the afternoon.
Labrador: None.
Convective Discussion…
A low pressure system tracking across northern Labrador may give a few elevated thundershowers to that area this afternoon. Tonight an approaching low pressure system will give rain across the Maritimes starting overnight. On Sunday, embedded/elevated thundershowers are expected across the region. Sunday afternoon with some clearing ahead of the low’s associated cold front, surface based thundershowers are expected over portions of New Brunswick and they will likely become severe. CAPE values of 500-1000 J/kg, shear of 40-50 knots and strong low level winds below 6000 feet will likely produce multicell and bow echo elements. Wind is the main threat (possible 90 km/h +) but 2 cm hail and torrential downpours (PWAT values 30-40 mm) are also likely. Because of some uncertainty with clearing in the afternoon and daytime high temperatures, the Sunday (day 2) chart below is likely a bit on the conservative side but will be updated again Sunday morning.
Thunderstorm Outlook for Today
Thunderstorm Outlook for Tonight
Thunderstorm Outlook for Tomorrow
