Regional Impacts
New Brunswick: Isolated to scattered thundershowers this afternoon and evening. Potential severe thundershowers giving downpours, gusty winds and hail.
NS/PEI/ NFLD/Labrador: A risk of thundershowers this afternoon and evening.
Convective Discussion
A cold front will approach northern New Brunswick this afternoon. ML cape values near 1000 J/kg are expected and wind shear near 30 kts. Freezing levels are high but decent cape exists in the hail growth zone. Dry mid layers will allow for gusty conditions. PWAT values will be near 40 mm so rainfall is a concern. The upper dynamics are supportive as well this afternoon as a strengthening diffluent trough approaches ahead of the main 250 mb jet. There is also possible rotation as the helicity values will be over 100.
Thunderstorm Outlook for Day 1
Thunderstorm Outlook for Day 2
