The study determined the degree of effectiveness of Early Warning System (EWS) in the selected coastline communities in Camarines Sur, Philippines. The researcher used descriptive method and structured questionnaire was employed to determine the degree of effectiveness of household communities. The results of the study on the degree of effectiveness on EWS along property: Lessen damages to houses ranked first with the highest mean score of 3.10 while to prevent vehicles and equipment ranked last with amean rating of 2.76, both interpreted as effective. The general weighted mean is 2.92 interpreted as effective. The results of the study on the degree of effectiveness on EWS along environment: Minimize damages of flora and fauna ranked first with a mean rating of 3.02 while and minimize alteration of community with a mean rating of 2.86 ranked last, both interpreted as effective. The general weighted mean rating is 2.93 interpreted as effective. The results of the study on the degree of effectiveness on EWS along livelihood: to minimize damages to fishing, and marine resources ranked first with a mean rating of 2.95, while to reduce losses to farming and agricultural crops production ranked last, with a mean rating of 2.85, both interpreted as effective. The general weighted mean is 2.91 interpreted as effective.
