Regional Impacts
NB and PEI: for this afternoon numerous clusters of strong thunderstorms producing heavy downpours 25+mm, hail 1cm, and gusts between 60-90 km/h.
Newfoundland&Labrador: Very moist airmass with isolated embedded thunderstorms spreading throughout the province - producing rainfall amounts in excess of 50 mm.
Convective Discussion
Surface Low pressure over Lower Quebec North Shore with cold front extending southwestwards along the St. Lawrence Valley. A southerly low level jet is spreading moisture from the Gulf of Maine across NB to Western Labrador. While steady rain is expected over northern regions, multi-cellular thunderstorms will continue to develop ahead of the advancing cold front. The threat of these storms becoming severe is reduced over areas where showers and thunderstorms have already developed during the morning. The focus will now be over southernmost NB and PEI for the most robust storms, and the main threat will remain the possibility of EF0-1 wind damage.
Thunderstorm Outlook for Day 1
Thunderstorm Outlook for Day 2
