Regional Impacts
Scattered thundershowers are expected across portions of NL today. Some embedded TSRA possible for the far eastern Avalon associated with the frontal trough. Some surface-based cells are likely this afternoon and evening for central regions of the island if given enough solar insolation. An isolated TSRA is also possible for SERN LAB.
Convective Discussion
There is a chance for an isolated strong storm or 2 for central regions of Newfoundland today giving torrential downpours and gusty winds (to about 70 km/h). PWATs are in the low to mid 30’s and shear is decent at about 40 knots or so. The instability is modest at best, but CAPE of about 500 j/kg or so is possible once the sun breaks through the clouds. The likelihood of any cell becoming severe is really low.
Thunderstorm Outlook for Day 1
Jeremy