Convective Outlook Valid for Today and Tomorrow

Regional Impacts

No thunderstorms expected today across the region.

 

Convective Discussion

High pressure system centered over Newfoundland will continue to give fair weather today. To the west, there are two frontal disturbances, one over James Bay and the other over Eastern Ontario. Rain associated with the James Bay system will gradually advance over Labrador today and tonight. There is some lightning activity associated with the southernmost system - but it’s not expected to affect the region.

 

 

Thunderstorm Outlook for Day 1

 

 

Thunderstorm Outlook for Day 2

Convective Outlook Valid for Today and Tomorrow

Regional Impacts

No thunderstorms expected today across the region.

 

Convective Discussion

There is weak short wave trough that will cross the Lower North Shore of Quebec and southeastern Labrador this afternoon and into this evening. There will likely be scattered TCU but, given the lower sun angle and weak thermodynamics, thunderstorms are not expected. OTWZ NIL SIG WX.

 

Thunderstorm Outlook for Day 1

 

Thunderstorm Outlook for Day 2

 

Jeremy

Convective Outlook Valid for Today and Tomorrow

Regional Impacts

 

Labrador today…

 

Southern New Brunswick, Fundy, northern Nova Scotia and PEI and into the Gulf of Saint Lawrence… Thunderstorms and heavy downpours with 30 + mm of rain possible in some areas tonight.

 

Convective Discussion

 

For Labrador weak updrafts could be sufficient to generate an isolated thunderstorm over a fairly large area. No severe weather is expected although stronger wind gusts can be expected in thunderstorms.

 

Tonight conditions may come together with moisture convergence ahead of a weak trough that will move over the area. With precipatable water values exceeding 50mm and most unstable Cape values near 500 j/kg locally heavy rain is possible where deeper convection occurs. Local rainfall rates of 30-40mm/hr are possible and radar should monitored for stronger cells moving through this evening and into the overnight hours.

 

 

Thunderstorm Outlook for Day 1

 

 

 

Thunderstorm Outlook for Day 2

 

Convective Outlook Valid for Tonight and Tomorrow

Thunderstorm Outlook for Day 1

 

Regional Impacts - None

 

Convective Discussion – There are currently a few strikes associated with a trough of low pressure over Quebec.  This trough will move across New Brunswick tonight bringing a slight risk of thundershowers for New Brunswick and western PEI.  Cloud top cooling could help with convective development but severe thunderstorms are not expected.

 

 

Thunderstorm Outlook for Day 2

 

Convective Outlook Valid for Today and Tomorrow

Thunderstorm Outlook for Day 1

 

Regional Impacts - None

 

Convective Discussion

With an area of high pressure dominating the region today there is no significant convective activity expected.

 

Thunderstorm Outlook for Day 2

 

Regional Impacts - None

 

Convective Discussion

A trough of low pressure will track across New Brunswick Wednesday night bringing a slight risk of thundershowers.