urn:oid:2.49.0.1.124.3812590888.2026cap-pac@canada.ca2026-10-23T20:01:49-00:00ActualAlertEnv. Can. - Can. Met. Ctr. – MontréalPublicprofile:CAP-CP:0.4layer:SOREM:1.0layer:EC-MSC-SMC:1.0layer:EC-MSC-SMC:1.1layer:SOREM:2.0Service 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/en-CAMetwinter stormMonitorExpectedModerateLikelygeneral publicprofile:CAP-CP:Event:0.4winterStormSAMEWSW2026-10-23T20:01:49-00:002026-10-24T12:00:00-00:002026-10-24T12:01:49-00:00Environment Canadayellow warning - winter storm - in effect
A significant fall storm will impact northeastern Manitoba and the southern Kivalliq beginning Saturday and will persist through the weekend.
Where: Churchill and Arviat
What: Hazardous winter conditions including:
Snow with total amounts of 10 to 25 cm.
Severe wind gusts possibly exceeding 110 km/h.
Significantly reduced visibilities in blowing snow.
Rain with total amounts of 20 to 30 mm.
When: Beginning Saturday morning and tapering off Sunday afternoon.
Remarks: Precipitation will move into this area on Saturday as rain or wet snow as wind off the bay will keep temperatures at or above zero. At this time wind speeds will increase with gusts up to 100 km/h. Conditions will transition to snow and blowing snow in the evening and overnight with wind gusts possibly exceeding 110 km/h and drastically reduced visibilities. Snow and winds will gradually taper off Sunday afternoon.
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Travel will likely be hazardous. Visibility will likely be suddenly reduced to near-zero at times. Local utility outages are likely. Property damage is possible. High-sided vehicles will be pushed around by the wind.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to MBstorm@ec.gc.ca, call 1-800-239-0484 or post reports on social media using #MBStorm.
Secure loose objects.
https://weather.gc.ca/layer:EC-MSC-SMC:1.0:Alert_Typewarninglayer:EC-MSC-SMC:1.0:Broadcast_Intrusivenolayer:SOREM:1.0:Broadcast_ImmediatelyNolayer:EC-MSC-SMC:1.1:Parent_URImsc/alert/environment/hazard/alert-3.0-ascii/consolidated-xml-2.0/20261023195839443/WW_12_72_CWWG/WSW/1958394431829697244202610230501_WW_12_72_CWWG/actual/en_proper_complete_c-fr_proper_complete_c/NinJolayer:EC-MSC-SMC:1.1:CAP_countA:24325 M:125006 C:144328layer:EC-MSC-SMC:1.0:Alert_Location_Statusactivelayer:EC-MSC-SMC:1.0:Alert_Nameyellow warning - winter stormlayer:EC-MSC-SMC:1.0:Alert_CoverageNorthern Manitobalayer:EC-MSC-SMC:1.1:Designation_CodeWW_12_72_CWWGlayer:SOREM:2.0:WirelessImmediateNolayer:EC-MSC-SMC:1.1:Alert_Location_Statusactivelayer:EC-MSC-SMC:1.1:Newly_Active_Areas059100layer:EC-MSC-SMC:1.1:Event_End_Time2026-10-25T21:00:00.000Zlayer:EC-MSC-SMC:1.1:MSC_Risk_Tiered_Ranking8layer:EC-MSC-SMC:1.1:MSC_Impactmoderatelayer:EC-MSC-SMC:1.1:MSC_Confidencehighlayer:EC-MSC-SMC:1.1:ColouryellowChurchill59.1161,-94.7122 58.784,-94.3979 58.8582,-94.2622 58.8144,-93.151 57.6436,-92.5275 57.2361,-92.3679 56.9253,-92.7352 56.9907,-94.0456 57.11,-95.4499 57.2946,-95.5213 57.4624,-95.4499 57.4604,-95.6164 57.7836,-95.6237 57.7824,-95.4499 58.7183,-95.609 59.9991,-95.4499 60.0563,-95.1085 59.9991,-94.8238 59.7963,-94.7036 59.6302,-94.7505 59.369,-94.6303 59.1161,-94.7122layer:EC-MSC-SMC:1.0:CLC059100profile:CAP-CP:Location:0.34623056profile:CAP-CP:Location:0.34623062fr-CAMettempête hivernaleMonitorExpectedModerateLikelygrand publicprofile:CAP-CP:Event:0.4winterStormSAMEWSW2026-10-23T20:01:49-00:002026-10-24T12:00:00-00:002026-10-24T12:01:49-00:00Environnement Canadaavertissement jaune - tempête hivernale - en vigueur
Une importante tempête automnale touchera le nord-est du Manitoba et le sud du Kivalliq à compter de samedi et persistera toute la fin de semaine.
Où : Churchill et Arviat.
Quoi : conditions hivernales dangereuses, notamment :
Neige générant de 10 à 25 cm au total.
Violentes rafales pouvant atteindre plus de 110 km/h.
Visibilité considérablement réduite dans la poudrerie.
Pluie générant de 20 à 30 mm au total.
Quand : à compter de samedi matin et cessant peu à peu dimanche après-midi.
Remarques : les précipitations gagneront la région samedi sous forme de pluie ou de neige fondante alors que les vents depuis la baie maintiendront les températures à zéro degré ou plus. Selon les prédictions actuelles, les vents s'intensifieront et souffleront en rafales jusqu'à 100 km/h. Les conditions se changeront en neige et en poudrerie en soirée et au cours de la nuit; les rafales pourraient dépasser 110 km/h et réduire grandement la visibilité. La neige et les vents faibliront progressivement dimanche après-midi.
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Les déplacements seront probablement dangereux. La visibilité sera probablement subitement réduite à presque nulle par moments. Des pannes de courant sont probables par endroits. Des dommages matériels sont possibles. Les véhicules à profil élevé seront bousculés par le vent.
Veuillez continuer à surveiller les alertes et les prévisions émises par Environnement Canada. Pour signaler du temps violent, envoyez un courriel à meteoMB@ec.gc.ca, appelez au 1-800-239-0484 ou publiez un message sur les réseaux sociaux en utilisant #MBMeteo.
Attachez les objets non fixés.
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