Yellow Advisory - Frost

ECCC Toronto ON · CA

Updated

This event was updated at 2026-09-20 15:26:32 UTC.

English

Yellow Advisory - Frost - In Effect

Event: Frost
Issued: 2026-09-19 20:04:22 UTC
Onset: 2026-09-20 07:00:00 UTC
Message expires: 2026-09-20 12:04:22 UTC
Expected end: 2026-09-20 15:00:00 UTC
Category: Meteorological
Urgency: Future
Severity: Moderate
Certainty: Likely
Response: Monitor

Description

Details

Freezing temperatures with frost are expected tonight. Patchy frost is expected early Sunday morning as temperatures fall to near the freezing mark.

Impacts and guidance

Damage to plants, trees, and crops is possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on social media using #ONStorm.

Instructions

Take preventative measures to protect cold-sensitive plants, trees, and crops.

Affected areas

Red Lake - Woodland Caribou Park
Ear Falls - Perrault Falls - Western Lac Seul
Savant Lake - Sturgeon Lake
Sioux Lookout - Eastern Lac Seul

Public contact

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

French

Avis Jaune - Gel - En Vigueur

Event: Gel
Onset: 2026-09-20 07:00:00 UTC
Message expires: 2026-09-20 12:04:22 UTC
Expected end: 2026-09-20 15:00:00 UTC
Category: Meteorological
Urgency: Future
Severity: Moderate
Certainty: Likely
Response: Monitor

Description

Détails

Des températures sous zéro avec du gel sont prévues cette nuit. Du gel épars est prévu tôt dimanche matin alors que les températures baisseront près du point de congélation.

Impacts et conseils

Des dommages aux plantes, aux arbres et aux cultures sont possibles. Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada. Pour signaler du temps violent, envoyez un courriel à meteoON@ec.gc.ca ou publiez un message sur les réseaux sociaux en utilisant #ONMeteo.

Instructions

Prenez des mesures préventives pour protéger les plantes, les arbres et les cultures vulnérables au froid.

Affected areas

Red Lake - parc Woodland Caribou
Ear Falls - Perrault Falls - lac Seul Ouest
Savant Lake - lac Sturgeon
Sioux Lookout - Lac Seul Est

Public contact

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

Message record

Received: 2026-09-19 20:05:59 UTC
Issue to receipt: ~1m37s
CAP status: Actual
CAP message type: Update
Lifecycle: Updated
Source: NAADS
Feed: NAADS Montréal
Recovered: No

CAP routing and identity

ULID: 01M2XMD4J6NQ5FXYGK9DPXSK73
Identifier: urn:oid:2.49.0.1.124.0366897711.2026
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)

References

Identifier: urn:oid:2.49.0.1.124.2865964840.2026
Sender: cap-pac@canada.ca
Sent: 2026-09-19 15:23:29 UTC

English

Event codes

Name	Value
profile:CAP-CP:Event:0.4	frost

Parameters

Name	Value
layer:EC-MSC-SMC:1.0:Alert_Type	advisory
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-2.0/20260919200239497/WO_12_72_CWTO/FTA/1519475351647681356202609190503_WO_12_72_CWTO/actual/en_proper_complete_c-fr_proper_complete_c/NinJo
layer:EC-MSC-SMC:1.1:CAP_count	A:23834 M:122679 C:141872
layer:EC-MSC-SMC:1.0:Alert_Location_Status	active
layer:EC-MSC-SMC:1.0:Alert_Name	yellow advisory - frost
layer:EC-MSC-SMC:1.0:Alert_Coverage	Northern Ontario
layer:EC-MSC-SMC:1.1:Designation_Code	WO_12_72_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	047210,047220
layer:EC-MSC-SMC:1.1:Event_End_Time	2026-09-20T15:00:00.000Z
layer:EC-MSC-SMC:1.1:MSC_Risk_Tiered_Ranking	8
layer:EC-MSC-SMC:1.1:MSC_Impact	moderate
layer:EC-MSC-SMC:1.1:MSC_Confidence	high
layer:EC-MSC-SMC:1.1:Colour	yellow

French

Event codes

Name	Value
profile:CAP-CP:Event:0.4	frost

Parameters

Name	Value
layer:EC-MSC-SMC:1.0:Alert_Type	advisory
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-2.0/20260919200239497/WO_12_72_CWTO/FTA/1519475351647681356202609190503_WO_12_72_CWTO/actual/en_proper_complete_c-fr_proper_complete_c/NinJo
layer:EC-MSC-SMC:1.1:CAP_count	A:23834 M:122679 C:141872
layer:EC-MSC-SMC:1.0:Alert_Location_Status	active
layer:EC-MSC-SMC:1.0:Alert_Name	avis jaune - gel
layer:EC-MSC-SMC:1.0:Alert_Coverage	nord de l'Ontario
layer:EC-MSC-SMC:1.1:Designation_Code	WO_12_72_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	047210,047220
layer:EC-MSC-SMC:1.1:Event_End_Time	2026-09-20T15:00:00.000Z
layer:EC-MSC-SMC:1.1:MSC_Risk_Tiered_Ranking	8
layer:EC-MSC-SMC:1.1:MSC_Impact	modéré
layer:EC-MSC-SMC:1.1:MSC_Confidence	élevée
layer:EC-MSC-SMC:1.1:Colour	jaune

Locations

English

Location data

Red Lake - Woodland Caribou Park

Name	Value
layer:EC-MSC-SMC:1.0:CLC	047110
profile:CAP-CP:Location:0.3	3560042
profile:CAP-CP:Location:0.3	3560090

Polygons: 51.6128,-95.1536 51.5513,-94.5036 51.4733,-93.9542 51.4257,-93.6935 51.3669,-93.4873 50.8325,-93.4705 50.2367,-93.4874 50.2863,-93.8911 50.3452,-94.2739 50.3413,-94.7122 50.3452,-95.1536 50.3682,-95.1601 50.3956,-95.1536 50.6658,-95.1655 50.8931,-95.1536 51.2501,-95.1961 51.6128,-95.1536

Location data

Ear Falls - Perrault Falls - Western Lac Seul

Name	Value
layer:EC-MSC-SMC:1.0:CLC	047120
profile:CAP-CP:Location:0.3	3560032
profile:CAP-CP:Location:0.3	3560084
profile:CAP-CP:Location:0.3	3560090

Polygons: 50.1283,-92.9179 50.2367,-93.4874 50.8079,-93.5092 51.3669,-93.4873 51.1193,-92.3388 50.1283,-92.9179

Location data

Savant Lake - Sturgeon Lake

Name	Value
layer:EC-MSC-SMC:1.0:CLC	047210
profile:CAP-CP:Location:0.3	3558080
profile:CAP-CP:Location:0.3	3558085
profile:CAP-CP:Location:0.3	3558090
profile:CAP-CP:Location:0.3	3560090

Polygons: 49.9131,-90.0123 49.5235,-90.0178 49.5614,-90.2392 49.8681,-91.6834 49.8683,-91.6842 51.1282,-91.0434 51.1354,-89.9953 49.9131,-90.0123

Location data

Sioux Lookout - Eastern Lac Seul

Name	Value
layer:EC-MSC-SMC:1.0:CLC	047220
profile:CAP-CP:Location:0.3	3560034
profile:CAP-CP:Location:0.3	3560056
profile:CAP-CP:Location:0.3	3560090

Polygons: 50.1283,-92.9179 51.1193,-92.3388 51.1282,-91.0434 49.8683,-91.6842 50.1283,-92.9179

French

Location data

Red Lake - parc Woodland Caribou

Name	Value
layer:EC-MSC-SMC:1.0:CLC	047110
profile:CAP-CP:Location:0.3	3560042
profile:CAP-CP:Location:0.3	3560090

Polygons: 51.6128,-95.1536 51.5513,-94.5036 51.4733,-93.9542 51.4257,-93.6935 51.3669,-93.4873 50.8325,-93.4705 50.2367,-93.4874 50.2863,-93.8911 50.3452,-94.2739 50.3413,-94.7122 50.3452,-95.1536 50.3682,-95.1601 50.3956,-95.1536 50.6658,-95.1655 50.8931,-95.1536 51.2501,-95.1961 51.6128,-95.1536

Location data

Ear Falls - Perrault Falls - lac Seul Ouest

Name	Value
layer:EC-MSC-SMC:1.0:CLC	047120
profile:CAP-CP:Location:0.3	3560032
profile:CAP-CP:Location:0.3	3560084
profile:CAP-CP:Location:0.3	3560090

Polygons: 50.1283,-92.9179 50.2367,-93.4874 50.8079,-93.5092 51.3669,-93.4873 51.1193,-92.3388 50.1283,-92.9179

Location data

Savant Lake - lac Sturgeon

Name	Value
layer:EC-MSC-SMC:1.0:CLC	047210
profile:CAP-CP:Location:0.3	3558080
profile:CAP-CP:Location:0.3	3558085
profile:CAP-CP:Location:0.3	3558090
profile:CAP-CP:Location:0.3	3560090

Polygons: 49.9131,-90.0123 49.5235,-90.0178 49.5614,-90.2392 49.8681,-91.6834 49.8683,-91.6842 51.1282,-91.0434 51.1354,-89.9953 49.9131,-90.0123

Location data

Sioux Lookout - Lac Seul Est

Name	Value
layer:EC-MSC-SMC:1.0:CLC	047220
profile:CAP-CP:Location:0.3	3560034
profile:CAP-CP:Location:0.3	3560056
profile:CAP-CP:Location:0.3	3560090

Polygons: 50.1283,-92.9179 51.1193,-92.3388 51.1282,-91.0434 49.8683,-91.6842 50.1283,-92.9179