Convective Outlook for Today – THURS July 29th
Regional Impacts
Non-severe thundershowers are possible over offshore waters from a frontal passage. Isolated, non-severe thundershowers are also possible over eastern Labrador.
Convective Discussion
The main forcing for today’s weather is a sweeping trough that is well east of the Maritimes. The rest of the region is dominated by a ridge of high pressure and strongly capped at 700mb. Nova Scotia in particular is quite dry at the surface. If a cell does manage to bubble up in Labrador, it will be short lived and single cell pulse in nature.
Convective Outlook for Tomorrow – FRI July 30th
Regional Impacts
Embedded non-severe thunderstorms are possible in parts of the Maritimes with a developing low pressure system. Heavy synoptic rain is the main hazard, in New Brunswick.
Convective Discussion
The limiting factor for any storms to develop will simply be the battle with cloud cover. If the low does not have clear slots to facilitate daytime heating, it will be difficult to create strong lift and cloud tops cold enough to cause any lightning. Nevertheless, a rainy/windy day in store for many parts of Atlantic Canada.
Convective Outlook for Day 3 – SAT July 31st
Regional Impacts
The start of the long weekend does not look to be very stormy in regards to thunderstorms. No deep shear or strong CAPE is being resolved by the models at this time. No forcing of concern is expected on Saturday specifically.
Convective Discussion
There does not appear to be a signal for severe convective weather for PEI at this time. Check future forecasts from Environment Canada for updates.
