Regional Impacts:
Today
Labrador: Isolated to scattered thunderstorms giving lightning, locally heavy downpours and gusty winds
Northwestern NB: Isolated thunderstorms
NS/PEI/NL: None
Tonight
NS/NB: Elevated/embedded thunderstorms
NL/PEI/Labrador: None
Tuesday
NS/PEI/NB: Elevated/embedded thunderstorms
NL/Labrador: None
Convective Discussion:
A trough over eastern Quebec/southern Labrador will drift southward while weakening. Ahead of the trough over southern Labrador scattered thunderstorms will develop this afternoon. Precipitable water near 25 mm and CAPE values 500-1000 J/kg are expected. Strong shear of 30-40 kts and dry mid-levels may support squall lines. Over northwestern NB, a weak shear environment and marginal cape may support pulse type storms with locally heavy downpours and brief wind gusts possible later this afternoon. Tonight and Tuesday a risk of elevated thunderstorms exists as a weak low pressure approaches.
Thunderstorm outlook for today:
Thunderstorm outlook for tonight:
Thunderstorm outlook for Tuesday: