Convective discussion:
High probability of thunderstorms in western and central Labrador. Heavy rain, gusty winds and possible hail would likely accompany these thunderstorms. There is a slight possibility of severe conditions.
Thundershowers will likely persist south of NS and NF with the southern Avalon remaining in the risk of non-severe thundershowers.
Technical Discussion:
CAPE values could exceed 1000J/kg in western Labrador. In addition, 0-6 km shear would be in the 40-50 knot range. Supercells and squall lines are possible.
Regional Impacts:
New Brunswick: Nil
Nova Scotia and Prince Edward Island: Nil, except a very slight risk northern mainland NS if a period of prolonged sunshine occurs this afternoon.
Newfoundland: Chance of a thundershower on the Avalon.
Labrador: Likely.