For effective disaster preparedness, an efficient and effective end-to-end warning system is indispensable. From having readiness to act 24/7 on any potential disaster threat, as well as to alert and motivate the at-risk communities, adopting immediate, appropriate measures to save lives, the development of Standard Operation Procedures (SOPs) in such a context, becomes an essential part of Early Warning dissemination. In Sri Lanka, there was no proper early warning system in place, prior to the devastating 2004 Tsunami. It was only post-2004, that preparations of SOPs were initiated for all hazards. Today, SOPs are available for most of the common hazards in Sri Lanka.