Starting the morning of 9/3, a cold air mass is expected to sweep across northern Vietnam, dropping nighttime temperatures to 15-18 degrees C and bringing thunderstorms and strong gusts.
A cold air mass is moving south, expected to sweep into the Northeast region tonight, 2/3, before extending across the plains and into the Northwest region.
A strong cold air mass is forecast to sweep across northern Vietnam from midday on 7/2, bringing widespread severe cold; tomorrow will be the peak, with some mountainous areas experiencing extreme cold, a risk of frost, and snow.
A weak cold front is expected to move into northern Vietnam, bringing temperatures down to a low of 8 degrees Celsius in high mountainous areas and 12-15 degrees Celsius in the plains.