What are the rainstorm warning signals?

Meteorological offices and stations subordinate to competent meteorological departments at all levels shall issue early warning signals in a timely manner, update or cancel early warning signals in a timely manner according to weather changes, and notify the people's governments at the corresponding levels and relevant departments as well as disaster prevention and mitigation institutions. When multiple meteorological disasters occur at the same time or are predicted to occur, multiple early warning signals can be issued at the same time according to corresponding standards. Meteorological offices and stations affiliated to the competent meteorological departments at all levels shall make full use of radio, television, fixed networks, mobile networks, the Internet, electronic display devices and other means to release early warning signals to the society in a timely manner. When issuing early warning signals in ethnic minority areas, in addition to the Chinese language, the local common ethnic minority languages should also be used. Radio, television and other media and fixed network, mobile network, Internet and other communication networks shall cooperate with the competent meteorological departments to disseminate early warning signals in a timely manner, use real-time early warning signals directly provided by meteorological offices and stations affiliated to the competent meteorological departments, and indicate the names and release times of meteorological offices and stations that issued early warning signals, and shall not change or delete the contents of early warning signals, refuse to disseminate early warning signals of meteorological disasters, or disseminate false and outdated early warning signals of meteorological disasters. ?