Regional Impacts…
Today
Labrador: Scattered severe thundershowers.
NB/NS: Scattered non-severe thundershowers.
PEI/Newfoundland: None.
Tonight
NB/NS/PEI/Labrador: Scattered non-severe thundershowers.
Newfoundland: None.
Thursday
NB/NS/PEI/Newfoundland/Labrador: Scattered non-severe thundershowers.
Convective Discussion
A slow moving cold front will drift across Labrador today and Thursday. The same front will move across New Brunswick on Thursday. Over Labrador, severe weather is possible ahead of the front this afternoon and evening. CAPE values near 1500 J/kg are expected and effective shear will be 30-40 knots. Additionally, a supportive right entrance region of the upper jet will move over western Labrador this afternoon. Over New Brunswick and western Nova Scotia today non-severe thundershowers are possible. CAPE values near 2000 J/kg are expected but effective shear will only be 10-20 knots and only weak forcing mechanisms are anticipated. On Thursday, the convection should become more embedded in nature but some surface based convection is still possible. CAPE values of 500-1000 J/kg are expected. Effective shear near 20 knots is anticipated over the Maritimes and closer to 30 knots over Labrador. Cells could become near severe with rain and wind but should stay below warning conditions.
Thunderstorm Outlook for Today
Thunderstorm Outlook for Tonight
Thunderstorm Outlook for Tomorrow
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