Effective June 1st, 2017, the City and County of Honolulu will discontinue sending emergency alert messages via the NIXLE notification system.
The city has developed its own emergency notification system and is available FREE via a mobile app from either the App Store or Google Play. Search for HNL.info. This app offers a free subscription to alerts and is able to be customized to the individual users preferences as to which alerts are received.
You can also register to receive email alerts at hnl.info/alerts/login.php