Message type

What this alert message does, using the same codes as CAP 1.2 (OASIS). An update or cancel message must point back to the alert it replaces, or people will see the old and new warning side by side.

Part of the Public warnings and notices profile, used by Alert.

Terms

CodeNameDescription
alert Alert Shares new information about a situation.
update Update Replaces an earlier alert with new information.
cancel Cancel Cancels an earlier alert.
ack Acknowledgement Confirms an earlier message was received.
error Error Reports that a message was rejected.
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