Regional Impacts
NL… Slight risk for some isolated thundershowers in parts of Labrador today and tomorrow. Heavy downpours possible.
NS/NB/PEI… None.
Convective Discussion…
As a ridge of high pressure builds into the Maritimes today, any lightning activity will be isolated to parts of Labrador, under the upper trough. Meager MLCAPE and weak bulk shear values lead to a low risk for any thunderstorm development today, however brief heavy downpours are possible with any storms that do develop.
Tomorrow, a cut-off low will swing into western Labrador, bringing a slightly greater chance for thunderstorms. More favourable dynamics are in place, but once again meager instability may hinder more organized storms from developing. Some isolated torrential downpours are possible in thunderstorms tomorrow, however this risk remains low.
Thunderstorm Outlook for Today
Thunderstorm Outlook for Tonight
Thunderstorm Outlook for Tomorrow
Copp