BEIJING, May 27 -- China's meteorological authority on Saturday renewed a blue alert for rainstorms in some parts of the country.

From 8 a.m. Saturday to 8 a.m. Sunday, heavy rainfall or rainstorms are forecast to lash parts of Sichuan, Shaanxi, Henan, Hubei, Anhui, and Jiangsu, with up to 150 mm of downpours expected in Sichuan, Henan, and Anhui, according to the National Meteorological Center.

Some areas of these provinces will also experience short and heavy rainfall marked by 20 to over 70 mm of hourly precipitation, as well as severe convection weather such as thunderstorms and gales, the meteorological center said.

It has advised local governments to make due preparations. Schools and kindergartens should work to ensure the safety of children, and drivers should stay alert to 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.