Squall Warning

ECCC Toronto ON · CA

New

This event was updated at 2026-09-16 06:25:23 UTC.

English

Squall Warning In Effect

Event: Squall
Issued: 2026-09-16 03:32:38 UTC
Onset: 2026-09-16 03:30:00 UTC
Message expires: 2026-09-16 07:32:38 UTC
Expected end: 2026-09-16 07:00:00 UTC
Category: Meteorological
Urgency: Immediate
Severity: Severe
Certainty: Possible
Response: Monitor

Description

Details

Squalls with wind gusts up to 35 knots are expected or occurring in the area. Thunderstorms over Michigan are moving east at 25 knots are expected to track over western portions of Lake Erie.

Impacts and guidance

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

Instructions

Mariners are advised to prepare for squalls. If underway, seek safe harbour immediately.

Affected areas

Western Lake Erie

Public contact

Issuer: Environment Canada
Audience: General Public
Website: https://weather.gc.ca/

French

Avertissement De Grains En Vigueur

Event: Grains
Onset: 2026-09-16 03:30:00 UTC
Message expires: 2026-09-16 07:32:38 UTC
Expected end: 2026-09-16 07:00:00 UTC
Category: Meteorological
Urgency: Immediate
Severity: Severe
Certainty: Possible
Response: Monitor

Description

Détails

Des grains accompagnés de rafales jusqu’à 35 noeuds sont attendus ou se produisent dans le secteur. Les orages sur le Michigan se déplacent vers l'est à 25 noeuds et devraient traverser les parties ouest du lac Érié.

Impacts et conseils

Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada. Pour plus d’information, écoutez la station radio de la Garde côtière canadienne ou Radiométéo.

Instructions

Les navigateurs devraient se préparer à affronter des grains. Si vous naviguez déjà, cherchez un havre immédiatement.

Affected areas

lac Érié Ouest

Public contact

Issuer: Environnement Canada
Audience: Grand Public
Website: https://meteo.gc.ca/

Message record

Received: 2026-09-16 03:34:13 UTC
Issue to receipt: ~1m35s
CAP status: Actual
CAP message type: Alert
Lifecycle: New
Source: NAADS
Feed: NAADS Montréal
Recovered: No

CAP routing and identity

ULID: 01M2M4EZZMSXQCC3F42VB66GPE
Identifier: urn:oid:2.49.0.1.124.2787272634.2026
Sender: cap-pac@canada.ca
Scope: Public
CAP source: Env. Can. - Can. Met. Ctr. – Montréal
Handling codes: profile:CAP-CP:0.4
layer:SOREM:1.0
layer:EC-MSC-SMC:1.0
layer:EC-MSC-SMC:1.1
layer:SOREM:2.0
Note: Service Notice – July 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For Spring 2026, changes are expected to include... 1) ECCC's deployment to introduce free-form polygons to represent the true threat area of a weather hazard, which was originally scheduled for June 2026, is delayed. We will communicate the new date when it is available. Monitor https://dd.weather.gc.ca/doc/genots/ for notifications on the new launch date. Information about free-form polygons representing the true threat area of a weather hazard remains under media embargo until launch, 2) marine alerts will now be issued for smaller zone splits in certain areas of Atlantic and Pacific waters and 3) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – juillet 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour le printemps 2026, il y aura des changements incluant... 1) Le déploiement par ECCC visant à introduire des polygones de forme libre pour représenter la zone réelle de menace d’un aléa météorologique, qui était initialement prévu pour juin 2026, est retardé. Nous communiquerons la nouvelle date lorsqu’elle sera disponible. Surveiller https://dd.weather.gc.ca/doc/genots/ pour les notifications concernant la nouvelle date de lancement. Les informations concernant les polygones de forme libre représentant la zone réelle de menace d’un aléa météorologique demeurent sous embargo médiatique jusqu’au lancement, 2) les alertes marines seront désormais émises pour des subdivisions de zones plus petites dans certaines régions des eaux de l’Atlantique et du Pacifique et 3) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/
Issuing office: Ontario Storm Prediction Centre (CWTO)

English

Event codes

Name	Value
profile:CAP-CP:Event:0.4	squall
SAME	SVR

Parameters

Name	Value
layer:EC-MSC-SMC:1.0:Alert_Type	warning
layer:EC-MSC-SMC:1.0:Broadcast_Intrusive	no
layer:SOREM:1.0:Broadcast_Immediately	No
layer:EC-MSC-SMC:1.1:Parent_URI	msc/alert/environment/hazard/alert-3.0-ascii/consolidated-xml-2.0/20260916033104198/WH_13_73_CWTO/SQW/308161152047238003202609160503_WH_13_73_CWTO/actual/en_proper_complete_c-fr_proper_complete_c/NinJo
layer:EC-MSC-SMC:1.1:CAP_count	A:23777 M:122425 C:141601
layer:EC-MSC-SMC:1.0:Alert_Location_Status	active
layer:EC-MSC-SMC:1.0:Alert_Name	squall warning
layer:EC-MSC-SMC:1.0:Alert_Coverage	Canadian portion of the Great Lakes and the Ontario portion of the St. Lawrence River
layer:EC-MSC-SMC:1.1:Designation_Code	WH_13_73_CWTO
layer:SOREM:2.0:WirelessImmediate	No
layer:EC-MSC-SMC:1.1:Alert_Location_Status	active
layer:EC-MSC-SMC:1.1:Newly_Active_Areas	002212
layer:EC-MSC-SMC:1.1:Event_End_Time	2026-09-16T07:00:00.000Z

French

Event codes

Name	Value
profile:CAP-CP:Event:0.4	squall
SAME	SVR

Parameters

Name	Value
layer:EC-MSC-SMC:1.0:Alert_Type	warning
layer:EC-MSC-SMC:1.0:Broadcast_Intrusive	no
layer:SOREM:1.0:Broadcast_Immediately	No
layer:EC-MSC-SMC:1.1:Parent_URI	msc/alert/environment/hazard/alert-3.0-ascii/consolidated-xml-2.0/20260916033104198/WH_13_73_CWTO/SQW/308161152047238003202609160503_WH_13_73_CWTO/actual/en_proper_complete_c-fr_proper_complete_c/NinJo
layer:EC-MSC-SMC:1.1:CAP_count	A:23777 M:122425 C:141601
layer:EC-MSC-SMC:1.0:Alert_Location_Status	active
layer:EC-MSC-SMC:1.0:Alert_Name	avertissement de grains
layer:EC-MSC-SMC:1.0:Alert_Coverage	secteur canadien des Grands Lacs et le secteur ontarien du fleuve Saint-Laurent
layer:EC-MSC-SMC:1.1:Designation_Code	WH_13_73_CWTO
layer:SOREM:2.0:WirelessImmediate	No
layer:EC-MSC-SMC:1.1:Alert_Location_Status	active
layer:EC-MSC-SMC:1.1:Newly_Active_Areas	002212
layer:EC-MSC-SMC:1.1:Event_End_Time	2026-09-16T07:00:00.000Z

Locations

English

Location data

Western Lake Erie

Name	Value
layer:EC-MSC-SMC:1.0:CLC	002212
profile:CAP-CP:Location:0.3	3534020
profile:CAP-CP:Location:0.3	3534024
profile:CAP-CP:Location:0.3	3534030
profile:CAP-CP:Location:0.3	3534042
profile:CAP-CP:Location:0.3	3536020
profile:CAP-CP:Location:0.3	3537001
profile:CAP-CP:Location:0.3	3537003
profile:CAP-CP:Location:0.3	3537013
profile:CAP-CP:Location:0.3	3537016
profile:CAP-CP:Location:0.3	3537028

Polygons: 42.0512,-83.1462 42.0537,-83.1109 42.0629,-83.0565 42.0167,-82.9069 42.0946,-82.6165 42.2319,-82.3391 42.5988,-81.7125 42.784,-81.2109 42.66,-81.1553 42.2591,-80.9327 42.2075,-81.2457 41.6765,-82.3974 41.6765,-82.6797 41.8635,-83.0691 42.0409,-83.1496 42.0512,-83.1462

French

Location data

lac Érié Ouest

Name	Value
layer:EC-MSC-SMC:1.0:CLC	002212
profile:CAP-CP:Location:0.3	3534020
profile:CAP-CP:Location:0.3	3534024
profile:CAP-CP:Location:0.3	3534030
profile:CAP-CP:Location:0.3	3534042
profile:CAP-CP:Location:0.3	3536020
profile:CAP-CP:Location:0.3	3537001
profile:CAP-CP:Location:0.3	3537003
profile:CAP-CP:Location:0.3	3537013
profile:CAP-CP:Location:0.3	3537016
profile:CAP-CP:Location:0.3	3537028

Polygons: 42.0512,-83.1462 42.0537,-83.1109 42.0629,-83.0565 42.0167,-82.9069 42.0946,-82.6165 42.2319,-82.3391 42.5988,-81.7125 42.784,-81.2109 42.66,-81.1553 42.2591,-80.9327 42.2075,-81.2457 41.6765,-82.3974 41.6765,-82.6797 41.8635,-83.0691 42.0409,-83.1496 42.0512,-83.1462