Japan's weather forecasting technology continues to improve in accuracy every year. Forecasts in Japan are made using weather observations from the Earth's surface, supercomputers, space weather satellites, and other combined methods. Weather forecasts help people's economic and social life, as well as prevent catastrophes. This article explores Japanese technology for constantly evolving weather forecasts. Help other countries with observations from space In Japan, meteorological observations reached space in 1977. Currently, two satellites - Himawari-8 (since 2014) and Himawari-9 (since 2016) - work together to monitor the weather.