Regional Impacts
NS/NB/PEI/NL… None
Convective Discussion
As an upper trough stalls over the Maritimes today, cold dry air will usher in from northern Quebec dropping dewpoints to the low to mid single digits. Dry low levels in conjunction with minimal wind shear will likely inhibit any thunderstorm development today across the Maritimes. A warm nose above 600 mb will inhibit much vertical development over central NS, however some isolated TCU are still possible. Extreme western New Brunswick may also see some isolated TCU this afternoon, but extremely dry low levels will likely prevent any development. The only area that is likely to see any lightning will be well offshore, closer to the 500 mb jet southeast of Nova Scotia.
Similar dry conditions are expected again tomorrow under the stalled upper low, with no thunderstorm development expected.
Thunderstorm Outlook for Today
Thunderstorm Outlook for Tomorrow
Copp