Regional Impacts…
Today
NB/NS/Labrador: Chance of non-severe thunderstorms.
PEI/NL: None.
Tonight
Labrador: Chance of embedded thunderstorms.
NB/NS/PEI/NL: None.
Tuesday
Labrador: Chance of embedded thunderstorms.
NB/NS/PEI/NL: None.
Convective Discussion
An upper low is expected to slowly move across the Maritimes today. Pop-up convection is expected across cloud free areas under the upper low today. The convection may become lightning producing across New Brunswick and northern Nova Scotia. There is little in the way of 0-6 km shear (10-15 kts) but moderate precipitable water values (25 to 35 mm) are occurring, so some locally heavy downpours are possible in slow moving storms. MLCAPE is forecast to be 1000-1500 J/kg today. An approaching trough of low pressure may give some embedded thundershowers across western Labrador on Tuesday.
A low pressure system tracking northeastward well south of Nova Scotia may give embedded lightning over portions the marine district today and tonight.
Thunderstorm Outlook for Today
Thunderstorm Outlook for Tonight
Thunderstorm Outlook for Tomorrow
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