The treatise attracted the attention of businessmen in Manila and a request was made to the Jesuit director, Fr. Juan Vidal, SJ, for regular observations for the purpose of warning the public against approaching typhoons. This was followed by a prediction in November of the same year that a tropical cyclone will pass by Pagasa rainfall data pdf. In 1886, the Faura Aneroid Barometer was released.
In 1887, a section devoted to the study of terrestrial magnetism was set up and six years later, the first maps of terrestrial magnetism in the Philippines was published. In 1890, the seismological service was officially established, and in 1899, the astronomical section was opened. Royal Decree on April 21, 1894. Jesuit order, with full support from the Spanish crown. This led to the establishment of a network of secondary stations in various points of Luzon. January 1, 1917, the Weather Bureau was transferred from the Department of Interior to DANR.