Regional Impacts
Newfoundland and Labrador…. Scattered thunderstorms giving locally heavy downpours for central and eastern Newfoundland.
PEI… No impacts.
NS… No impacts.
NB… No impacts.
Convective Discussion
Thunderstorms will continue to develop ahead of the cold front moving across Newfoundland today. The same airmass that brought localized rainfall amounts exceeding 50 mm to parts of the Maritimes has now shifted over Newfoundland. The timing of the front will likely limit deeper convection due to reduced daytime heating.
With precipitable water (PW) values near 35 mm and most unstable CAPE between 500 and 1000 J/kg, there remains some potential for locally heavy downpours. Given the front’s forward speed, back-building thunderstorms are not expected; however, there is a slight risk of this occurring across central and northeastern Newfoundland.
Following the passage of the front, most of the region will see much drier conditions over the next couple of days, with little in the way of active weather until Sunday or Monday, when another system is expected to bring some precipitation. This next front is unlikely to produce as much active convection as the current one.
Thunderstorm Outlook for Today
Thunderstorm Outlook for Tonight
Thunderstorm Outlook for Tomorrow
Mel Lemmon
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