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How test warnings are marked during exercises.
During an exercise, every message the Grenada Meteorological Service issues carries the word EXERCISE at the start of the headline, in the message body, and in the structured CAP status field. Warning pages on this site display an exercise banner for the whole duration.
A test warning is never issued without those markings. If you see a warning without them, treat it as real.
Exercise messages are also flagged in the machine-readable feed, so broadcasters and alerting apps can suppress or label them automatically rather than relying on someone reading the text.
| Exercise | Hazard | Typically held |
|---|---|---|
| CARIBE WAVE | Tsunami | March, region-wide |
| National hurricane simulation | Tropical cyclone | Before 1 June |
| Internal warning drills | Various | Through the year, unannounced |
A warning system is only as good as the last time it was tested end to end — from the forecaster issuing the message, through dissemination, to whether it reached people and whether they knew what to do.
Exercises find the failures that matter while nothing is at stake: a broken distribution list, a channel nobody monitors, a message that was technically correct and practically unclear.