BEIJING, July 30 -- China's Ministry of Water Resources and the China Meteorological Administration (CMA) on Sunday evening issued a red alert for mountain torrents.

From 8 p.m. Sunday to 8 p.m. Monday, mountain torrents are expected to hit certain areas of Beijing, Hebei and Shanxi.

Local authorities are advised to strengthen real-time monitoring and flood warning procedures amid measures to prepare for evacuation.

The CMA simultaneously issued a yellow alert for floods on some small and medium-sized rivers in parts of Beijing, Hebei, Shanxi and Henan, and renewed an orange alert for floods in southwestern Beijing and in central parts of Hebei.

Parts of Beijing and Hebei face waterlogging risks from 8 p.m. Sunday to 8 p.m. Monday, the CMA also warned.

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