Tropical storm Wipha weakened after making landfall in northern Vietnam on Tuesday, with authorities on alert due to heavy rains that could cause flooding and mudslides, as the Philippines struggled with monsoon downpours that began last week.

Tropical Storm Wipha made landfall in northern Vietnam on Tuesday, bringing strong winds and heavy rain to parts of the country’s north and central regions. The storm came ashore at 10 a.m. with maximum sustained winds of 102 kilometers per hour (63 mph),

Wipha was a tropical storm in the Gulf of Tonkin Monday evening Eastern time, the Joint Typhoon Warning Center said in its latest advisory. The tropical storm had sustained wind speeds of 52 miles per hour.