Thunderstorm Outlook valid for TODAY: Tuesday, Aug 9/2022.
Regional Impacts
Very isolated embedded convection is again possible with this slumping frontal feature advancing slowly across the Maritimes today. Pockets of heavy rain (10-15mm/hr) are occurring throughout the Maritimes.
Convective Discussion
Significant thunderstorms are not expected to form today (or tomorrow). Pwats are very high (50-60mm) on this morning’s weather balloons, leading to high rainfall rates and a very saturated boundary layer (up to 20,000ft at Yarmouth). 0-6k shear is near 55kts, making any storm structure be very short lived and advected quickly downstream. The grey isolated area has been overdrawn to show where isolated strikes could occur (if any). Tonight, the same lack of dynamics exist over the Avalon.
Thunderstorm Outlook for Day 1 - TUESDAY
Thunderstorm Outlook for Night 1 - TUESDAY OVERNIGHT
Embedded thundershower risk shifts slightly east in the overnight hours along frontal wave.
Thunderstorm Outlook for Day 2 – WEDNESDAY
Weak dynamics for a risk of only isolated TS in extreme western Labrador late in the day (evening) near a developing low centre in northern Quebec (Nunavik) stretching back across the Kivalliq.
Forecaster: TIRONE/ASPC