Start with the Canadian product and storm identity
The Canadian Hurricane Centre publishes tropical-cyclone information relevant to Canada. Start with the named storm and issue time. An Atlantic map, an archived image and a local weather alert can all appear in a search without referring to the same forecast period. Do not combine them solely because they mention the same province.
The centre's forecast and product explanation describes its storm-track information. A plotted centre location or future track point is not the complete extent of wind, rain or coastal impacts. Read the map legend, valid times and accompanying text instead of measuring only how far the centre line lies from Halifax or St. John's.
Separate Canadian context from a US advisory
The CHC frequently asked questions explain forecast context and track uncertainty. When comparing CHC and US NHC products, retain both issue times and the intended geographic coverage. Different products can legitimately emphasize different information. Matching the storm name is necessary but not sufficient to establish that two images are the same update.
A useful Atlantic Canada comparison names the community, storm and forecast hour. It then links the Canadian text and identifies any separate local alert. Do not use a broad centre track as an address-level estimate. A province can contain locations with different relevant warnings, and the selected map may not represent all of them in its centre-path symbology.
Check the local weather message separately
Canada's weather-alert explanation describes the role of watches, warnings and advisories. Read the message for the actual locality and time window. It answers a different question from where the cyclone centre may travel. An absent or distant centre marker cannot cancel a local alert, while an old alert cannot establish today's forecast.
The PocketWorld hurricane overview provides available global cyclone context. It does not reproduce every CHC graphic, Canadian local warning or coastal assessment. Source labels and freshness are important, particularly when a global feed retains an earlier record while a national authority has a newer advisory.
For a shareable summary, record the storm identifier, issuing authority, advisory time, forecast valid time and local alert link. Distinguish observed storm position from a future position. If one source cannot be checked, state that limitation rather than filling the gap with a saved graphic. This page explains products for research and interpretation; it is not an official warning channel, travel-safety service or replacement for local emergency instructions during an evolving storm.
Data sources
References are linked beside the explanations above. This evergreen guide does not report current incidents.