Warning Vector

Yellow Advisory - Frost

ECCC Toronto ON · CA

Updated

English

Yellow Advisory - Frost - In Effect

Event
Frost
Issued
Onset
Message expires
Expected end
Category
Meteorological
Urgency
Future
Severity
Moderate
Certainty
Likely
Response
Monitor

Description

Details

Freezing temperatures with frost are expected tonight. Patchy frost is expected early Monday morning as temperatures fall to near the freezing mark. Patchy frost is possible early Tuesday morning as well.

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
  • Searchmont - Montreal River Harbour - Batchawana Bay
  • Greater Sudbury and vicinity
  • Elliot Lake - Ranger Lake
  • West Nipissing - French River
  • North Bay - Powassan - Mattawa
  • Blind River - Thessalon
  • Espanola - Killarney

Public contact

Issuer
Environment Canada
Audience
General Public

French

Avis Jaune - Gel - En Vigueur

Event
Gel
Onset
Message expires
Expected end
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 à prévoir tôt lundi matin alors que les températures baisseront près du point de congélation. Du gel épars est également possible tôt mardi matin.

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
  • Searchmont - Montreal River Harbour - Batchawana Bay
  • Grand Sudbury et les environs
  • Elliot Lake - Ranger Lake
  • Nipissing Ouest - French River
  • North Bay - Powassan - Mattawa
  • Blind River - Thessalon
  • Espanola - Killarney

Public contact

Issuer
Environnement Canada
Audience
Grand Public

Message record

Received
Issue to receipt
~1m22s
CAP status
Actual
CAP message type
Update
Lifecycle
Updated
Source
NAADS
Feed
NAADS Montréal
Recovered
No
CAP routing and identity
ULID
01M2ZZMP32313A0MVNF2RXPTV1
Identifier
urn:oid:2.49.0.1.124.2316594458.2026
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

Sender
cap-pac@canada.ca
Sent

Event codes

NameValue
profile:CAP-CP:Event:0.4frost

Parameters

NameValue
layer:EC-MSC-SMC:1.0:Alert_Typeadvisory
layer:EC-MSC-SMC:1.0:Broadcast_Intrusiveno
layer:SOREM:1.0:Broadcast_ImmediatelyNo
layer:EC-MSC-SMC:1.1:Parent_URImsc/alert/environment/hazard/alert-3.0-ascii/consolidated-xml-2.0/20260920175838940/WO_12_72_CWTO/FTA/132605352802317227202609200503_WO_12_72_CWTO/actual/en_proper_complete_c-fr_proper_complete_c/NinJo
layer:EC-MSC-SMC:1.1:CAP_countA:23845 M:122732 C:141931
layer:EC-MSC-SMC:1.0:Alert_Location_Statusactive
layer:EC-MSC-SMC:1.0:Alert_Nameyellow advisory - frost
layer:EC-MSC-SMC:1.0:Alert_CoverageNorthern Ontario
layer:EC-MSC-SMC:1.1:Designation_CodeWO_12_72_CWTO
layer:SOREM:2.0:WirelessImmediateNo
layer:EC-MSC-SMC:1.1:Alert_Location_Statusactive
layer:EC-MSC-SMC:1.1:Newly_Active_Areas047110,047120
layer:EC-MSC-SMC:1.1:Event_End_Time2026-09-21T14:00:00.000Z
layer:EC-MSC-SMC:1.1:MSC_Risk_Tiered_Ranking8
layer:EC-MSC-SMC:1.1:MSC_Impactmoderate
layer:EC-MSC-SMC:1.1:MSC_Confidencehigh
layer:EC-MSC-SMC:1.1:Colouryellow

Event codes

NameValue
profile:CAP-CP:Event:0.4frost

Parameters

NameValue
layer:EC-MSC-SMC:1.0:Alert_Typeadvisory
layer:EC-MSC-SMC:1.0:Broadcast_Intrusiveno
layer:SOREM:1.0:Broadcast_ImmediatelyNo
layer:EC-MSC-SMC:1.1:Parent_URImsc/alert/environment/hazard/alert-3.0-ascii/consolidated-xml-2.0/20260920175838940/WO_12_72_CWTO/FTA/132605352802317227202609200503_WO_12_72_CWTO/actual/en_proper_complete_c-fr_proper_complete_c/NinJo
layer:EC-MSC-SMC:1.1:CAP_countA:23845 M:122732 C:141931
layer:EC-MSC-SMC:1.0:Alert_Location_Statusactive
layer:EC-MSC-SMC:1.0:Alert_Nameavis jaune - gel
layer:EC-MSC-SMC:1.0:Alert_Coveragenord de l'Ontario
layer:EC-MSC-SMC:1.1:Designation_CodeWO_12_72_CWTO
layer:SOREM:2.0:WirelessImmediateNo
layer:EC-MSC-SMC:1.1:Alert_Location_Statusactive
layer:EC-MSC-SMC:1.1:Newly_Active_Areas047110,047120
layer:EC-MSC-SMC:1.1:Event_End_Time2026-09-21T14:00:00.000Z
layer:EC-MSC-SMC:1.1:MSC_Risk_Tiered_Ranking8
layer:EC-MSC-SMC:1.1:MSC_Impactmodéré
layer:EC-MSC-SMC:1.1:MSC_Confidenceélevée
layer:EC-MSC-SMC:1.1:Colourjaune
Locations

Location data

  • Red Lake - Woodland Caribou Park
NameValue
layer:EC-MSC-SMC:1.0:CLC047110
profile:CAP-CP:Location:0.33560042
profile:CAP-CP:Location:0.33560090
Polygons
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Location data

  • Ear Falls - Perrault Falls - Western Lac Seul
NameValue
layer:EC-MSC-SMC:1.0:CLC047120
profile:CAP-CP:Location:0.33560032
profile:CAP-CP:Location:0.33560084
profile:CAP-CP:Location:0.33560090
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

  • Searchmont - Montreal River Harbour - Batchawana Bay
NameValue
layer:EC-MSC-SMC:1.0:CLC048820
profile:CAP-CP:Location:0.33557051
profile:CAP-CP:Location:0.33557074
profile:CAP-CP:Location:0.33557075
profile:CAP-CP:Location:0.33557077
profile:CAP-CP:Location:0.33557095
Polygons
47.2346,-84.9134 47.2522,-84.6283 47.2516,-83.9912 47.2211,-83.9911 46.781,-83.9907 46.4826,-83.8414 46.6516,-84.4894 46.6539,-84.4985 46.6321,-84.7351 47.2346,-84.9134

Location data

  • Greater Sudbury and vicinity
NameValue
layer:EC-MSC-SMC:1.0:CLC049100
profile:CAP-CP:Location:0.33552004
profile:CAP-CP:Location:0.33552013
profile:CAP-CP:Location:0.33552023
profile:CAP-CP:Location:0.33552026
profile:CAP-CP:Location:0.33552028
profile:CAP-CP:Location:0.33552031
profile:CAP-CP:Location:0.33552051
profile:CAP-CP:Location:0.33552093
profile:CAP-CP:Location:0.33553
Polygons
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Location data

  • Elliot Lake - Ranger Lake
NameValue
layer:EC-MSC-SMC:1.0:CLC049200
profile:CAP-CP:Location:0.33552023
profile:CAP-CP:Location:0.33557038
profile:CAP-CP:Location:0.33557041
profile:CAP-CP:Location:0.33557074
profile:CAP-CP:Location:0.33557095
Polygons
46.9695,-82.6356 46.9696,-81.939 46.6086,-81.939 46.6086,-82.0579 46.2733,-82.0579 46.2733,-82.82 46.4826,-83.8414 46.781,-83.9907 47.2211,-83.9911 47.221,-82.631 46.9695,-82.6356

Location data

  • West Nipissing - French River
NameValue
layer:EC-MSC-SMC:1.0:CLC049810
profile:CAP-CP:Location:0.33548055
profile:CAP-CP:Location:0.33548073
profile:CAP-CP:Location:0.33548094
profile:CAP-CP:Location:0.33549071
profile:CAP-CP:Location:0.33549076
profile:CAP-CP:Location:0.33549077
profile:CAP-CP:Location:0.33549096
profile:CAP-CP:Location:0.33552001
profile:CAP-CP:Location:0.33552004
Polygons
46.2785,-80.4935 46.2601,-80.276 46.6307,-80.276 46.6307,-80.3679 46.7151,-80.3679 46.7145,-79.5386 46.554,-79.5386 46.3273,-79.5554 46.1138,-79.5388 45.9261,-79.5385 45.9047,-79.6173 45.901,-79.7785 45.8856,-80.5706 46.0178,-80.5701 46.106,-80.6965 46.2675,-80.6965 46.2785,-80.4935

Location data

  • North Bay - Powassan - Mattawa
NameValue
layer:EC-MSC-SMC:1.0:CLC049820
profile:CAP-CP:Location:0.33548013
profile:CAP-CP:Location:0.33548019
profile:CAP-CP:Location:0.33548021
profile:CAP-CP:Location:0.33548022
profile:CAP-CP:Location:0.33548027
profile:CAP-CP:Location:0.33548031
profile:CAP-CP:Location:0.33548034
profile:CAP-CP:Location:0.33548044
profile:CAP-CP:Location:0.33548091
profile:CAP-CP:Location:0.33548094
profile:CAP-CP:Location:0.33549060
profile:CAP-CP:Location:0.33549066
profile:CAP-CP:Location:0.33549071
Polygons
46.3783,-78.6857 46.344,-78.6878 46.3403,-78.5836 46.3158,-78.4765 46.3144,-78.3748 46.2912,-78.3344 46.2631,-78.3382 46.2607,-78.3417 46.2468,-78.3597 46.2441,-78.3696 46.1756,-78.6213 45.9989,-79.2711 45.9261,-79.5385 46.1138,-79.5388 46.3273,-79.5554 46.554,-79.5386 46.7145,-79.5386 46.7147,-79.151 46.7147,-79.1099 46.7145,-79.1058 46.7207,-79.0624 46.6951,-79.0486 46.6586,-78.984 46.5625,-78.953 46.4674,-78.8477 46.403,-78.7063 46.3783,-78.6857

Location data

  • Blind River - Thessalon
NameValue
layer:EC-MSC-SMC:1.0:CLC049910
profile:CAP-CP:Location:0.33552023
profile:CAP-CP:Location:0.33557019
profile:CAP-CP:Location:0.33557021
profile:CAP-CP:Location:0.33557026
profile:CAP-CP:Location:0.33557028
profile:CAP-CP:Location:0.33557035
profile:CAP-CP:Location:0.33557038
profile:CAP-CP:Location:0.33557039
profile:CAP-CP:Location:0.33557040
profile:CAP-CP:Location:0.33557071
profile:CAP-CP:Location:0.33557072
profile:CAP-CP:Location:0.33557073
profile:CAP-CP:Location:0.33557094
profile:CAP-CP:Location:0.33557095
Polygons
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Location data

  • Espanola - Killarney
NameValue
layer:EC-MSC-SMC:1.0:CLC049920
profile:CAP-CP:Location:0.33551017
profile:CAP-CP:Location:0.33551040
profile:CAP-CP:Location:0.33552023
profile:CAP-CP:Location:0.33552026
profile:CAP-CP:Location:0.33552036
profile:CAP-CP:Location:0.33552093
Polygons
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Location data

  • Red Lake - parc Woodland Caribou
NameValue
layer:EC-MSC-SMC:1.0:CLC047110
profile:CAP-CP:Location:0.33560042
profile:CAP-CP:Location:0.33560090
Polygons
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Location data

  • Ear Falls - Perrault Falls - lac Seul Ouest
NameValue
layer:EC-MSC-SMC:1.0:CLC047120
profile:CAP-CP:Location:0.33560032
profile:CAP-CP:Location:0.33560084
profile:CAP-CP:Location:0.33560090
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

  • Searchmont - Montreal River Harbour - Batchawana Bay
NameValue
layer:EC-MSC-SMC:1.0:CLC048820
profile:CAP-CP:Location:0.33557051
profile:CAP-CP:Location:0.33557074
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Polygons
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Location data

  • Grand Sudbury et les environs
NameValue
layer:EC-MSC-SMC:1.0:CLC049100
profile:CAP-CP:Location:0.33552004
profile:CAP-CP:Location:0.33552013
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Polygons
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Location data

  • Elliot Lake - Ranger Lake
NameValue
layer:EC-MSC-SMC:1.0:CLC049200
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Polygons
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Location data

  • Nipissing Ouest - French River
NameValue
layer:EC-MSC-SMC:1.0:CLC049810
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Polygons
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Location data

  • North Bay - Powassan - Mattawa
NameValue
layer:EC-MSC-SMC:1.0:CLC049820
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profile:CAP-CP:Location:0.33548019
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Polygons
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Location data

  • Blind River - Thessalon
NameValue
layer:EC-MSC-SMC:1.0:CLC049910
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profile:CAP-CP:Location:0.33557019
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Polygons
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Location data

  • Espanola - Killarney
NameValue
layer:EC-MSC-SMC:1.0:CLC049920
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Polygons
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