There is no ice forecast issued for this area.

Watches (In effect)

Squall watch in effect

Kingston to Prescott

Issued 01:25 AM EDT 15 July 2026 Conditions are favourable for the development of squalls with wind gusts up to 40 knots, frequent lightning and hail.

Thunderstorms remain possible tonight.

Large hail can damage vessels and cause injury. Vessels without lightning protection should make their way to shore immediately. Mariners are advised to prepare for potential squalls. Vulnerable vessels are most at risk and should seek safe harbour if underway. Consider delaying or postponing travel in areas under the Squall Watch.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

---

Technical Marine Synopsis

Issued 6:30 PM EDT 14 July 2026 Tonight and Wednesday At 6:30 p.m. EDT tonight quasi-stationary ridge located on a line
northwest-southeast over Minnesota.

At 6:30 p.m. EDT tonight trough located on a line east-west over
Nickel Belt.
By 6:30 p.m. EDT Wednesday trough located on a line
northeast-southwest over the St. Lawrence River.