BEIJING, May 20 -- China's meteorological and water resources authorities on Monday evening issued alerts for rainstorms and mountain torrents in some parts of the country.

From 8 p.m. Monday to 8 p.m. Tuesday, heavy downpours or rainstorms are expected to hit parts of Hainan, Guangdong, Fujian, Guizhou, Chongqing, Yunnan and Xinjiang, according to a blue alert issued by the National Meteorological Center.

Parts of these regions may experience rainfall with maximum hourly precipitation surpassing 60 millimeters, accompanied by thunderstorms or gales, the center said.

The Ministry of Water Resources and the China Meteorological Administration also issued a blue alert for mountain torrents in some areas of the southeastern part of Fujian, the central part of Hainan and the northwestern part of Xinjiang from 8 p.m. Monday to 8 p.m. Tuesday.

Local governments have been urged to implement precautionary measures and ensure the safety of people.

Authorities have also asked schools and kindergartens to adopt appropriate safety measures for students, while drivers have been cautioned about potential road waterlogging and traffic jams.

China has a four-tier, color-coded weather warning system, with red representing the most severe warning, followed by orange, yellow and blue.