Prescott to Cornwall
Issued 10:30 AM EDT 22 August 2017
Today Tonight and Wednesday.
Strong wind warning in effect. Squall watch in effect.
Wind south 15 knots with gusts to 50 near thunderstorms. Wind becoming southwest 20 this afternoon with gusts to 50 near thunderstorms this evening. Wind diminishing to southwest 10 near midnight then becoming light Wednesday evening.
A few showers and a few thunderstorms ending near midnight. Chance of showers beginning near noon Wednesday with risk of thunderstorms.
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There is no ice forecast issued for this area.
Warnings (In effect)
Kingston to CornwallIssued 10:30 AM EDT 22 August 2017
'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.
Watches (In effect)
Squall watch in effect
Prescott to CornwallIssued 09:30 AM EDT 22 August 2017 Conditions are favourable for the development of squalls with wind gusts up to 50 knots, frequent lightning, hail and poor to very poor visibility in thunderstorms heavy at times.
The severe weather threat should end by late afternoon or early evening.
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 SynopsisIssued 10:30 AM EDT 22 August 2017 Today Tonight and Wednesday At 10:30 a.m. EDT today deepening low 999 mb located 100 miles
north of Lake Nipissing.
By 10:30 a.m. EDT Wednesday deepening low 985 mb located east of
At 10:30 a.m. EDT today trough from low located on a line
northeast-southwest over northern Lake Huron.
By 10:30 a.m. EDT Wednesday trough located on a line
northeast-southwest over the Eastern Seaboard.
St. Lawrence - St. Lawrence River Area
- Beauport to L'Isle-aux-Coudres
- Browns Bank
- Chaleur - Miscou
- Cornwall to Montréal
- Donnacona to Beauport
- Grand Manan
- Gulf - Magdalen - western half
- Lake Memphrémagog - northern half
- Lake Nipissing
- Lake Saint-Jean
- L'Isle-aux-Coudres to Tadoussac
- Montréal to Trois-Rivières
- Northumberland Strait - western half
- Pointe à Michel to Pointe-des-Monts
- Pointe-des-Monts to Anticosti - northern half
- Pointe-des-Monts to Anticosti - southern half
- Prescott to Cornwall
- Richelieu River and Northern Lake Champlain
- Saguenay to Tadoussac
- Tadoussac to Pointe à Michel
- Trois-Rivières to Donnacona
- Arctic - Eastern Arctic
- Arctic - Western Arctic
- Atlantic - Labrador
- Atlantic - Maritimes
- Atlantic - Newfoundland
- Great Lakes - Lake Erie and Lake Ontario
- Great Lakes - Lake Huron
- Great Lakes - Lake Superior
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