WATCH IN EFFECT: Severe Thunderstorm Watch for Montréal Island area
Issued 9:28 AM EDT, Tuesday, July 14, 2026
Impact Level: Moderate
Forecast Confidence: High
Today, conditions are favourable for the development of severe thunderstorms capable of producing strong wind gusts, large hail and heavy rain.
There is also a risk of a tornado this afternoon.
Nautical activities may be hazardous due to sudden, severe wind gusts over bodies of water.
When thunder roars, go indoors! Lightning kills and injures Canadians every year.
Severe thunderstorm watches are issued when conditions are favourable for the development of thunderstorms capable of producing damaging hail, wind or rain.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on X using #QCStorm.
TORNADO: Mascouche area
orange watch – tornado – in effect
Issued: 8:55 AM EDT, Tuesday, July 14, 2026
Expires: 10:59 PM EDT, Tuesday, July 14, 2026
Urgency: Expected
Severity: Severe
Conditions are favourable for the development of severe thunderstorms which may produce tornadoes. Strong winds, large hail and heavy rain are also possible.
Nautical activities may be hazardous due to sudden, severe wind gusts over bodies of water.
Significant damage or destruction to infrastructure, homes and the natural environment is possible.
Tornado watches are issued when conditions are favourable for the development of severe thunderstorms capable of producing tornadoes.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on X using #QCStorm.
In the event of a tornado, or if a tornado warning is issued for your area: go indoors to a room on the lowest floor, away from outside walls and windows, such as a basement, bathroom, stairwell or interior closet. Leave mobile homes, vehicles, tents, trailers and other temporary or free-standing shelter, and move to a strong building if you can. As a last resort, lie in a low spot and protect your head from flying debris. Be prepared for severe weather. If you hear a roaring sound or see a funnel cloud, swirling debris near the ground, flying debris, or any threatening weather approaching, take cover immediately. When out on the water, be prepared for severe weather. If threatening weather approaches make for shore and take shelter immediately. It is particularly dangerous to be on a small craft on the open water when lightning is occurring.
THUNDERSTORM: Montréal Island area
yellow watch – severe thunderstorm – in effect
Issued: 9:28 AM EDT, Tuesday, July 14, 2026
Expires: 10:01 PM EDT, Tuesday, July 14, 2026
Urgency: Expected
Severity: Moderate
Today, conditions are favourable for the development of severe thunderstorms capable of producing strong wind gusts, large hail and heavy rain.
There is also a risk of a tornado this afternoon.
Nautical activities may be hazardous due to sudden, severe wind gusts over bodies of water.
Severe thunderstorm watches are issued when conditions are favourable for the development of thunderstorms capable of producing damaging hail, wind or rain.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on X using #QCStorm.
When thunder roars, go indoors! Lightning kills and injures Canadians every year.
SQUALL: Richelieu River and Northern Lake Champlain
squall watch in effect
Issued: 9:31 AM EDT, Tuesday, July 14, 2026
Expires: 1:29 AM EDT, Wednesday, July 15, 2026
Urgency: Expected
Severity: Severe
This afternoon and this evening, conditions are favourable for the development of squalls with wind gusts of up to 50 knots, frequent lightning, hail and poor to very poor visibilities due to rain showers at times heavy.
Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.
Consider delaying or postponing travel in areas under the Squall Watch.
SQUALL: Montréal to Trois-Rivières
squall watch in effect
Issued: 9:31 AM EDT, Tuesday, July 14, 2026
Expires: 1:29 AM EDT, Wednesday, July 15, 2026
Urgency: Expected
Severity: Severe
This afternoon and this evening, conditions are favourable for the development of squalls with wind gusts of up to 50 knots, frequent lightning, hail and poor to very poor visibilities due to rain showers at times heavy.
Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.
Consider delaying or postponing travel in areas under the Squall Watch.
