Thunderstorm Outlook for TODAY – Monday, Aug 9, 2021
Regional Impacts
Isolated non-severe thundershowers are possible this afternoon and early evening over extreme NW New Brunswick.
Convective Discussion
A weak approaching boundary from Quebec may be enough to trigger just enough lift to excite a TCU or 2 this afternoon in the northern terrain. Only hazard with a cell if it can form would be lightning. With dew points of only 11, this airmass is not muggy enough to see any impactful rainfall.
Thunderstorm Outlook for TOMORROW – Tuesday, Aug 10, 2021
Regional Impacts
Isolated severe thunderstorms are possible across the northern tier of New Brunswick with heavy downpours and gusty winds being the main threats. Elsewhere, isolated non-severe cells may spark up if we get partial clearing of the cloud deck/fog/mist.
Convective Discussion
Shear depicted in the RDPS is enough to get multi-cell training storms, as well as profiles look elevated enough to cause gusty winds to near 90km/h. Heavy rain will be the biggest concern if a storm lacks forward motion (25-50mm/h). This thunderstorm risk will be re-assessed by the ASPC on Tues AM.
