From 23/6 to 26/6 in the northern mountainous provinces has had a very heavy rain with the average rainfall of 50-100mm, some places have higher rainfall such as Sin Ho (Lai Chau) 158mm, Mu Cang Chai (Yen Bai) 126mm, Ha Giang 123mm, Ngan Son (Bac Can) 208mm, Bac Quang (Ha Giang) 335mm, ...