Atlantic Canada Weather Blog: Convective Outlook Valid for Today , Tonight and Tomorrow

Regional Impacts

Today: risk of non-severe thunderstorms across the interior of NF and southeastern LAB. Risk of embedded thundershowers for some southwestern areas of the MRTMs this evening.

Tonight: continuing with that risk for embedded thundershowers across far southwestern NS.

Sunday: nil.

Convective Discussion

There will likely be some isolated cells this afternoon form over the traditional area of inland southwestern NF then advect E/NEward during the afternoon hours, in association with a weak short wave trough moving through the area. The 12Z sounding out of YJT supports some small hail and gusty winds to about 70 km/h. Pwats are super low so rainfall is not a concern at all. Expect isolated cells for inland areas of southeastern LAB as well but are not anticipated to impact any of the coastal communities. Lastly a frontal zone will remain over the western MRTMs today and tonight so there will be a risk of embedded, elevated thundershowers for some counties tonight that will give intense rainfall at times, as model Pwats will be running up around 40 mm. Sunday looks rather quiet across the entire region.

Thunderstorm Outlook for Today