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Tuesday, July 22, 2025

Convective Outlook Valid for Today, Tonight and Tomorrow

Regional Impacts

Today: Scattered embedded thundershower activity within the boundary that’s in the vicinity of the Grand Banks. No severe hazards forecast.

Tonight: No thunderstorms expected.

Tomorrow: No convection forecast. Strong cap.

Convective Discussion

Upper trof is departing Nfld this morning. Convection is possible out ahead of the trof, but would be non-severe and embedded. The risk would only be 5-10mm of rain. Stability increases tonight from a Ridge building in from the west. Building heights are preventing any deep convection on Wednesday. The next trof approaches late in the day on Thursday, and may bring a lightning strike or 2 before midnight over extreme western Lab and NWrn NB.

Thunderstorm Outlook for Today

Thunderstorm Outlook for Tonight

Thunderstorm Outlook for Tomorrow

Thunderstorm Outlook for Thursday

Forecaster: Tirone.