A kind of warm-cloud rainfall flame agent comprises: silica sand, and flame agent that is mixed with the silica sand, and the weight ratio of the silica sand and flame agent is between 1:2 to 1:4, wherein the weight percentage of the silica sand is calculated as 100%, then the silica sand will contain silica with the weight percentage not less than 90wt% and for the weight percentage of the flame agent calculated as 100%, then the flame agent will contain 79wt% to 80wt% of potassium nitrate, 5wt% to 15wt% of sulfur, and 10wt% to 20wt% of carbon. The present invention, by controlling the ratio of the silica sand and flame agent and using the silica sand as a condensed core of hygroscopic particles, can effectively enhance the effect of artificial rainfall.一種暖雲增雨焰劑,包含矽砂,及一與該矽砂混合的燃劑,且該矽砂與燃劑的重量比介於1:2至1:4。其中,以該矽砂的重量百分比為100wt%計算,該矽砂包括重量百分比不小於90wt%的二氧化矽,以該燃劑的重量百分比為100wt%計算,該燃劑包括70wt%至80wt%的硝酸鉀、5wt%至15wt%的硫,與10wt%至20wt%的碳。本發明藉由控制該矽砂與燃劑的比例,並以該矽砂作為吸濕性粒子的凝結核心,而可有效地提升人工增雨的降雨效果。
