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Saturday, July 11, 2020

Convective Outlook Valid for Today and Tomorrow

Regional Impacts

Thunderstorms likely in western Labrador giving heavy downpours of rain and possible small hail. Gusty winds up to 40 knots are possible.

Non-severe thundershowers possible in western New Brunswick.

 

Convective Discussion

There is lots of low-level heat and moisture to give energy for convection in Atlantic Canada. However, cloud cover and low CAPEs are limiting factors in the Maritimes.

 

The best chance for significant convection today is in western Labrador. There is upper level dynamics with a 50-60 knot jet at the 250 level. The 0-6 km shear if about 40 knots. If there is sufficient sunshine as a trigger, the CAPE is between 1000 and 1500 J/kg in the extreme west and about 500 J/kg east of Churchill Falls.

 

Thunderstorm Outlook for Day 1

 

 

Thunderstorm Outlook for Day 2