This unsettled pattern is in no rush to leave
We’re aboard a train of unsettled weather systems thanks to a persistent trough sending the jet stream through our region.
The latest system is a weak area of low-pressure that passed south of Nova Scotia last night that will track south of the Avalon Peninsula in Newfoundland today.
The system does not carry significant moisture, so there’s just a chance of some showers or wet snow for Nova Scotia early this morning, then in eastern Newfoundland this afternoon. However, an onshore flow separate from this system will keep a chance of flurries and showers in place for Nova Scotia, Prince Edward Island and western Newfoundland.
The next widespread system develops over New Brunswick Sunday along a warm front. The low, which is still weak over the Maritimes, means Nova Scotia, New Brunswick and Prince Edward Island should see patchy rain bands or snow showers that won’t amount to much.
However, the low will strengthen quickly over the Gulf of St. Lawrence, bringing more widespread precipitation to Newfoundland and southeast Labrador, including rain to some snow for eastern Newfoundland and mostly snow for western Newfoundland into Labrador.
Gusty west and northwest winds develop on the backside of the low Sunday night into Monday, gusting 40 to 70 km/h across Atlantic Canada, except gusts of 70 to 90 km/h for parts of Cape Breton and Prince Edward Island and 90 to 120 km/h for eastern and parts of central Newfoundland.
These gusty winds will likely generate further sea effect flurries or snow squalls Sunday night through Monday, which could be significant for western Cape Breton and the west coast of Newfoundland.
The unsettled pattern is set to continue next week with further disturbances, gusty winds, and temperatures remaining below average.