A new cold front is set to affect Northern Vietnam, with forecasts predicting heavy rainfall for three days in a row starting next week. According to the National Center for Hydro-Meteorological Forecasting, the weather in Northern Vietnam will remain relatively dry and sunny until mid-next week, with temperatures reaching between 31-34 degrees Celsius.

However, by Wednesday or Thursday, the northeastern monsoon winds are expected to strengthen, leading to the possibility of scattered rain and a drop in temperatures. The weather forecast for the next ten days suggests that from September 30 to October 2, both Northern and North Central Vietnam may experience scattered showers.

While some models have begun to show signs of this incoming cold front, it is important to note that these predictions are still subject to change as the situation develops. The cold air phenomenon typically occurs when a mass of very cold air from the Asian continent moves down to Vietnam, causing significant weather changes, including strong northeastern winds and colder temperatures.

The cold front is particularly dangerous as it can lead to strong winds at sea, potentially reaching levels 6 to 7, which could jeopardize fishing vessels. On land, winds can reach levels 4 to 5, causing damage to homes and infrastructure. Moreover, intense cold spells can result in heavy rain, strong winds, and even extreme weather phenomena such as storms and hail.

Historically, cold air activity in Northern Vietnam is expected to be weaker than average this year, with significant cold spells likely occurring later than usual. The first major cold spell of the winter season is yet to be determined, but trends indicate that severe cold events may arrive later than in previous years.

In summary, residents of Northern Vietnam should prepare for a significant weather change next week, with the arrival of a new cold front and the potential for heavy rainfall.