High tide at 6:58 p.m. local time will coincide with the strongest winds, as well, heightening the risk of coastal flooding in areas such as the Burin Peninsula and southern Avalon.
Coastal flood warning in effect
“A combination of storm surge, large waves, and pounding surf, coinciding with high tide, will push water beyond its usual reach, exceeding the highest astronomical tide,” says Environment and Climate Change Canada (ECCC) in a coastal flood warning.
“Stay away from the shore to prevent being swept off rocks, injured by driftwood or pulled out to sea.”
SEE ALSO: The biggest, brightest Supermoon of 2025 rises Tuesday night!
Maximum wave heights could reach between 6-8+ metres at high tide.
St. John’s could experience gusts near 100 km/h or more for over 12 hours, with damaging westerly and northwesterly winds continuing through Wednesday. It has been quite a while since Newfoundland was impacted by a storm of this caliber, with the last 110+ km/h gust in St. John’s reported on January 5, 2025.
P.E.I. and western Cape Breton may also see northwesterly gusts of 90-100 km/h Tuesday night.
