The active pattern that has stationed itself over Atlantic Canada this week continues Wednesday, with most of the rain and snow focused on Newfoundland with a system on its way about to exit the East Coast. Temperatures will take a noticeable nosedive, bringing back wind chills into the minus teens and -20s into Thursday. Beyond, attention will then turn to a possible nor'easter, which could potentially become a high-impact storm for the East Coast this weekend. More on what's ahead for Wednesday and an early look at the possible weekend nor'easter, below.
WEDNESDAY: SYSTEM BRINGS SNOW, RAIN TO NEWFOUNDLAND
Precipitation with diminish for the Maritimes Tuesday overnight as the clipper departs the region, making way for a fair day Wednesday.
Snow will push into Newfoundland throughout the day Wednesday, with rain trekking in for the Avalon Peninsula by the early afternoon as warmer temperatures move into the region. However, the rain will switch over back to snow with cooler temperatures on the way throughout the overnight hours.
Once the system moves out of western areas of Newfoundland Wednesday afternoon, there will be lingering sea-effect snow for the region and eastern Nova Scotia. It will diminish Thursday morning.
Accumulative totals from the two systems and sea-effect may hit 10-20 cm across southwestern parts of the island where the snow will be the heaviest. Between 5-10 cm is expected elsewhere.
A quick shot of Arctic air will spread across the region later Wednesday and Thursday, bringing wind chills in the minus teens and -20s to the region, but will be precipitation-free.
LOOK AHEAD: ARCTIC AIR SPREADS ACROSS THE REGION, WATCHING A POTENTIAL WEEKEND NOR'EASTER
Beyond, a slight break in the precipitation for the region for much of Thursday. However, eyes will then shift to a possible nor'easter, which threatens this weekend across the East Coast.
A storm is expected to rapidly intensify, and possibly reach weather bomb criteria, as it tracks up the U.S. East Coast Friday night and Saturday.
This looks like it could be a high-impact storm for Atlantic Canada later Saturday and into Sunday, as well. The exact track of the storm however, will be critical for who would see the blizzard conditions and very heavy snow, versus heavy rain and much milder temperatures. In between the rain and snow will be a messy mix of wintry conditions, with the threat for some ice as well. Widespread strong winds are also likely with the storm.
As this storm passes, fair weather and near seasonal temperatures look to dominate for early next week.
Stay tuned to The Weather Network for the latest forecast details for Atlantic Canada.