Regional Impacts:
Today
Labrador: an isolated thunderstorm (brief heavy shower and gust 60km/h) in the Churchill Valley-Goose Bay-Eagle River areas
NB/NS/PEI/NL: None
Tonight
Labrador: convection slowly dissipating
NS/NB/PEI/NL: None
Wednesday
NS/PEI/NL: None
NB: slight risk of a thunderstorm
Convective Discussion
A surface frontal band extends from the north Labrador coast to James Bay and then northern Ontario this morning. Mid-level convection embedded in the cloud produced some lightning activity last night. This feature will be advancing over the Atlantic provinces during the next couple of days producing a slight risk of thunderstorm over the region.
The main threat today lies across central Labrador.. upper air sounding from Goose Bay indicates plenty of instability and the surface moisture has been increasing since sunrise. Surface T/Td combination of 28/14 (MLCAPE 400 LI -3) is enough to trigger the odd high base pulse thunderstorm which could give a brief heavier shower and gust to 60 km/h. Upper support for this activity is not very good so any storm that forms will not last very long.
Thunderstorm Outlook for today
Thunderstorm outlook for tonight:
Thunderstorm Outlook for Thursday
