Monday, August 18, 2025

Convective Outlook Valid for Today , Tonight and Tomorrow

Regional Impacts

Today: risk of an embedded thundershower over southeastern NL.

Tonight: risk of an embedded thundershower over eastern NL.

Tuesday: risk of an embedded thundershower over the Avalon Peninsula.

Convective Discussion

A developing upper low will be the only weather to talk about this week. There has been very little in the way of lightning up until now, but the instability does get better later today, through tonight and into early Tuesday. So, there should be some isolated elevated thundershowers as the upper low spins around eastern/southeastern NL. The PWATs are relatively low however, areas of convection will be very slow to move so locally heavy rainfall amounts are a concern with this feature.

Thunderstorm Outlook for Today

Thunderstorm Outlook for Tonight

Thunderstorm Outlook for Tomorrow

Jeremy

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