urn:oid:2.49.0.1.124.1685321989.2026cap-pac@canada.ca2026-10-21T21:23:44-00:00ActualAlertEnv. 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-CAMettropical stormMonitorFutureModeratePossiblegeneral publicprofile:CAP-CP:Event:0.4tropStorm2026-10-21T21:23:44-00:002026-10-21T21:00:00-00:002026-10-23T03:23:44-00:00Environment Canadatropical cyclone information statement in effect
Subtropical Storm Josephine has formed out of an originally non-tropical low about 500 km south of Cape Cod.
The CHC has been monitoring the evolution of cloud patterns in a once non-tropical low over the Gulf Stream off the U.S. East Coast during the past few days. The low has developed enough tropical characteristics to be designated a named sub-tropical system by the National Hurricane Center in Miami. The storm, however, will quickly transform back to a non-tropical low later Thursday while intensifying and bringing up to hurricane-force winds over southern Canadian waters. The centre will track eastward well south of Nova Scotia and Newfoundland.
Some rain and wind is likely to move into southern Nova Scotia during the day Thursday and eventually southeastern Newfoundland. Gusty northeast winds will accompany the rain but this weather will be indirectly connected to Josephine.
This bulletin is geographically set for portions of the Maritimes Marine district slope waters nearest to the track of the storm.
A CHC-specific track/intensity forecast is not planned at this time given the brief period the storm is expected to be sub-tropical and quick transition to frontal system again. If warranted, an update to this bulletin would be issued by late Thursday morning.
Forecaster: Fogarty
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Please continue to monitor alerts issued by the Canadian Hurricane Centre and forecasts issued by Environment Canada.
https://weather.gc.ca/layer:EC-MSC-SMC:1.0:Alert_Typestatementlayer: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-2.0/20261021210731453/WO_3X_4X_CWHX/TCS/2006179041850915048202610210508_WO_3X_4X_CWHX/actual/en_proper_complete_c-fr_proper_complete_c/NinJolayer:EC-MSC-SMC:1.1:CAP_countA:24276 M:124822 C:144134layer:EC-MSC-SMC:1.0:Alert_Location_Statusactivelayer:EC-MSC-SMC:1.0:Alert_Nametropical cyclone information statementlayer:EC-MSC-SMC:1.0:Alert_CoverageEastern Canadalayer:EC-MSC-SMC:1.1:Designation_CodeWO_3X_4X_CWHXlayer:SOREM:2.0:WirelessImmediateNolayer:EC-MSC-SMC:1.1:Alert_Location_Statusactivelayer:EC-MSC-SMC:1.1:Newly_Active_Areas003251,003252,003280,003350layer:EC-MSC-SMC:1.1:Event_End_Time2026-10-23T09:00:00.000ZGeorges Bank - northern half41.1437,-66.4339 41.9999,-67.1652 42.0045,-66.477 41.9998,-65.3321 41.9906,-65.3306 41.1439,-65.1867 41.1437,-66.4339layer:EC-MSC-SMC:1.0:CLC003251profile:CAP-CP:Location:0.3noneGeorges Bank - southern half39.9999,-64.9992 39.9999,-65.4992 40.0001,-65.4994 41.1437,-66.4339 41.1439,-65.1867 39.9999,-64.9992layer:EC-MSC-SMC:1.0:CLC003252profile:CAP-CP:Location:0.3noneWest Scotian Slope40.5557,-63.9081 39.9999,-64.9992 41.1439,-65.1867 41.9906,-65.3306 41.9998,-65.3321 42.5192,-64.1493 42.5194,-64.1486 42.9947,-63.0117 42.9998,-62.9991 42.0394,-62.9991 41.7896,-62.9991 41.0035,-62.9991 40.9998,-62.9991 40.9946,-63.0099 40.5557,-63.9081layer:EC-MSC-SMC:1.0:CLC003280profile:CAP-CP:Location:0.3noneEast Scotian Slope41.5645,-60.8525 40.9998,-62.9991 41.0035,-62.9991 41.7896,-62.9991 42.0394,-62.9991 42.9998,-62.9991 43.2322,-62.1446 43.5543,-60.8907 43.9997,-58.999 43.0022,-58.999 41.9998,-58.999 41.9027,-59.4302 41.5645,-60.8525layer:EC-MSC-SMC:1.0:CLC003350profile:CAP-CP:Location:0.3nonefr-CAMettempête tropicaleMonitorFutureModeratePossiblegrand publicprofile:CAP-CP:Event:0.4tropStorm2026-10-21T21:23:44-00:002026-10-21T21:00:00-00:002026-10-23T03:23:44-00:00Environnement Canadabulletin d'information sur les cyclones tropicaux en vigueur
La tempête subtropicale Josephine s'est formée à partir d'une dépression à l'origine non tropicale située à environ 500 km au sud du Cap Cod.
Le CCPO surveille l'évolution de la configuration des nuages dans une dépression auparavant non tropicale au-dessus du Gulf Stream au large des États-Unis au cours des derniers jours. La dépression a développé suffisamment de caractéristiques tropicales pour être désignée comme système subtropical par le National Hurricane Center à Miami. Toutefois, la tempête se transformera rapidement en dépression non tropicale plus tard jeudi tout en s'intensifiant et occasionnera des vents pouvant atteindre la force ouragan sur les eaux canadiennes sud. Le centre se dirigera vers l'est bien au sud de la Nouvelle-Écosse et de Terre-Neuve.
Un peu de pluie et de vent devraient gagner le sud de la Nouvelle-Écosse au cours de la journée de jeudi et éventuellement le sud-est de Terre-Neuve. Des vents du nord-est soufflant en rafales accompagneront la pluie; ces conditions seront indirectement liées à Josephine.
Ce bulletin vise certaines parties des eaux du talus du secteur maritime des Maritimes situées à proximité de la trajectoire de la tempête.
Pour le moment, le CCPO n'envisage pas d'émettre de prévisions spécifiques concernant la trajectoire ou l'intensité de ce système, étant donné que la tempête devrait être subtropicale et devrait se changer rapidement en système frontal de nouveau. Si nécessaire, une mise à jour de ce bulletin sera émise d'ici la fin de la matinée jeudi.
Prévisionniste : Fogarty.
###
Veuillez continuer à surveiller les alertes émises par le Centre canadien des ouragans et des prévisions émises par Environnement Canada.
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