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Wednesday, August 5, 2026

Convective Outlook Valid for Today, Tonight and Tomorrow

Regional Impacts

Today

Nfld: chance of a thundershower near the low centre in the vicinity of Gander and Terra Nova N.P.

Labrador: chance of a thundershower along a decaying trof in western areas stemming from Quebec.

Tonight

None expected over land areas.

Tomorrow

Labrador: slight risk of thundershowers again in western sections of Labrador.

Convective Discussion

In the Maritimes, a strong ridge of high pressure is keeping clouds at bay. There is ample CIN, and the entire column is dry on this morning’s soundings. Heat warnings are in effect for many counties. No convection is forecast.

In Nfld, some embedded TS activity could occur just to the east and south of the remnant low centre today. This system is very occluded at this point; evident on satellite. This will pull away overnight tonight. In Labrador, a slight risk of a late day thundershower coming in from Quebec along a trof is possible. But severe hazards are not being forecast. Lightning is the biggest risk today and tomorrow in these remote locations. (Forest fire smoke is also a factor in vicinity of Quebec and NB in mid and upper levels.)

Thunderstorm Outlook for Today

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Thunderstorm Outlook for Tonight

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Thunderstorm Outlook for Tomorrow

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Forecaster: Tirone.