注意了！这里，暴雨红色预警！

Group 1 - The article highlights severe weather warnings issued by various meteorological authorities in China, indicating heavy rainfall and potential flooding in multiple regions [1][3][5] - A red rainstorm warning was issued for Heilongjiang Province, with over 70mm of rainfall recorded in a short period, and further rainfall expected [1] - The Central Meteorological Observatory issued a yellow rainstorm warning, predicting rainfall of 100-220mm in several provinces, including Jiangsu, Anhui, and Henan [1] Group 2 - The Ministry of Water Resources and the China Meteorological Administration jointly issued an orange mountain flood disaster warning, indicating a high likelihood of mountain floods in specific areas [3] - The geological disaster meteorological risk warning was also issued, highlighting regions with a high risk of geological disasters, urging local governments to prepare accordingly [5] - Public safety measures are emphasized, advising individuals to avoid high-risk areas and stay updated on warning information [5]