CAP Alerts

After setup

• Polling interval (seconds)How often to check for new alerts (60–3600). ECCC: applies only when real-time streaming is off.
• API timeout (seconds)Per-request API timeout (5–120)
• LanguagePreferred alert language. ECCC: auto/en-CA/fr-CA. MeteoAlarm: auto plus 2-letter ISO codes. WMO: auto, or any BCP 47 tag the source publishes (e.g. zh-Hans); the source falls back to English when it does not carry your language. BBK: auto, de, de-LS (easy-read German), en or one of the app's other translations. GeoSphere Austria: de (the source text, default) or en (GeoSphere's translation).
• Real-time streamingStream ECCC alerts over the NAAD real-time feed for near-instant updates (recommended). When off, alerts are polled from the GeoRSS feed on the polling interval. ECCC only.
• Alert feed sourceECCC: which NAAD GeoRSS host(s) to fetch. 'auto' combines both feeds so no alert carried by only one is missed (recommended); Pelmorex has announced that the legacy host will retire, so pin a single host only to work around a specific feed issue. WMO: 'auto' reads the feed the weather service publishes itself and merges in the SWIC mirror where it still answers (recommended); SWIC retired the mirror for nearly every source in October 2026. 'mirror' or 'authority' reads one of them only. ECCC and WMO only.
• Exclude marine alertsHide alerts issued for marine/water zones (boating, open water). NWS and ECCC only.
• Event typesWhich GDACS hazards to track. Filtering happens before any alert is fetched, so narrowing this also cuts the fetch cost. Leave every type selected (the default) to track them all, including hazards GDACS adds later. GDACS only.
• Minimum alert levelGDACS: lowest alert level to fetch, Green (all), Orange, or Red, on GDACS's own impact scale; it decides which events are fetched, not how they are shown. Raise it to cut the volume of green earthquakes. Australia: lowest Australian Warning System tier to keep, All, Advice, Watch and Act or Emergency Warning; All also keeps the informational tiers below the ladder (planned burns, incidents with no warning). A warning with no tier at all, such as a WA hazmat warning, ranks by its own severity. GDACS and Australia only.
• Area codes (prefix match)Optional. Comma-separated area-code prefixes (e.g. 13,37). Keeps only alerts whose area codes start with one of them, on top of the location filter chosen at setup. Codes are hierarchical, so a shorter prefix covers a wider area (13 = Hebei, 1307 = Zhangjiakou). Matched against every code scheme the source publishes. Code lengths vary within a scheme, so pasting a full code may match nothing — prefer the leading digits. Leave empty to disable.