What do you mean by meteorological weapons?

It belongs to a kind of "geophysical weapon", which can attack the enemy by controlling the weather and changing the climate of the local country. Science fiction films directly create extreme low temperatures, typhoons, earthquakes and tsunamis.

1970, the United States conducted the meteorological warfare exercise codenamed "Blue Nile" against Cuba, and achieved good results. The U.S. military spread silver iodide on the clouds in the "upper reaches" of Cuba, which caused the rainy clouds to descend before reaching Cuba, resulting in abnormal dry weather in Cuba, which seriously affected the growth of crops in Cuba and made the output of sugar crops fail to reach the predetermined target.

Red alert 2 lightning storm