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Sunday, July 9, 2023

Convective Outlook Valid for Today, Tonight and Tomorrow

Regional Impacts

 

Today

New Brunswick: Isolated non-severe thunderstorms are possible near the Quebec border at Aut. 85 and Hwy2.

Labrador: over western portions non-severe thunderstorms are possible this evening.

 

Tonight

Energetics do not support nocturnal convection tonight.

 

Monday

New Brunswick: thunderstorms are possible across central and southern portions of the province ahead of an advancing area of low pressure.

Nova Scotia: as air mass destabilizes, thunderstorms are possible. Heavy rain is the greatest threat.

 

 

Convective Discussion

 

An approaching trough over central Quebec will track northward with instability increasing over western Labrador and northwestern New Brunswick today. The biggest threat with any cells that develop is lightning. Tomorrow, more widespread development is forecast over the southern Maritimes with rain being the biggest hazard. VILs are over 60 in model guidance. The key here will be if any discrete cells form before the synoptic rain and showers take over.

 

Thunderstorm Outlook for TODAY

 

Thunderstorm Outlook for TONIGHT

 

Thunderstorm Outlook for MONDAY

 

Forecaster: Tirone