Regional Impacts
NB/NS/PEI/NL… Slight chance for some isolated thundershowers today across central Atlantic Canada. Main hazard will be locally heavy downpours of 10 to 20 mm/h.
Convective Discussion…
An upper low moving northeast into the Gulf of St. Lawrence this morning brings the risk for some isolated thundershowers across central Atlantic Canada today. Convection will be focused near the center of the upper low, though better bulk shear values (40 to 50 knots) to the east, closer to the Cabot Strait, may allow for some thundershowers to develop over Cape Breton and western Newfoundland later this afternoon. MLCAPE values are quite low across the region today, less than 750 J/kg, so thundershowers are unlikely to become severe. Nonetheless, some brief heavy downpours of 10 to 20 mm/h will be possible.
Thunderstorm Outlook for Today
Thunderstorm Outlook for Tonight
Thunderstorm Outlook for Tomorrow
Copp
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