Fresh on the heels of a powerful snowstorm that pummelled parts of Atlantic Canada earlier this week comes another potent system that could throw the region’s weather into turmoil through the rest of the weekend. Rainfall warnings are in place for the Maritimes. More on the timing and impacts through Sunday, below.
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SATURDAY/SUNDAY: SURGE OF WARMTH ACCOMPANIES SOGGY, WINDY SYSTEM, RISK OF FLOODING
A warm front associated with the same system bringing foul conditions to Ontario and Quebec will lift over the Maritimes on Saturday afternoon. The system will usher in heavy rainfall, intense southwesterly winds, and a surge of warmth during the overnight hours. Rainfall warnings are in place for the Maritimes.
Given the recent heavy snowfall, which hit 30-40 cm in some areas, the incoming rainfall combined with rapid snowmelt could cause localized flooding, especially in areas where snow banks block or inhibit storm drainage.
The heaviest totals are expected in southern Newfoundland, where forecasters expect 30-50 mm of rain through Sunday. Southern areas of New Brunswick and Nova Scotia won’t be far off, however, with 20-40 mm expected during the same period.
Newfoundland will have to wait until Saturday evening for the rain and warmth to arrive. Unlike the last system, this storm will bring mild temperatures to the entire island overnight Saturday into Sunday.
In addition, strong southwesterly winds of 60-80+ km/h are expected across much of the province Saturday evening and into Sunday morning. Wind warnings may be issued as the time draws closer.
The surging warmth could potentially break some records, with daytime highs in the low-to mid-teens for some locales in Nova Scotia, P.E.I., and Newfoundland on Sunday.
BEYOND: TEMPERATURE SWINGS, MORE WET WEATHER
Temperatures fall back to near-seasonal levels early and mid-next week, trending warmer and wetter for the late week.
There will be snow and ice changing to rain for central and northern parts of Atlantic Canada, ahead of the milder weather.
Stay tuned to The Weather Network for the latest forecast in Atlantic Canada.