The North is about to welcome a rare cold air in May in the past 40 years.

The National Center for Hydro-Meteorological Forecasting said the upcoming cold spell will take place from May 13 to 15, possibly causing strong winds in the Gulf of Tonkin up to level 6, gusting to level 7-8.

The lowest temperature in mountainous areas is forecast to drop below 16 degrees, while in the Northern Delta region (including Hanoi) the lowest is forecast to be from 20 to 23 degrees.

The North is about to welcome rare cold air in May. Photo: Nhi Tien

According to the National Center for Hydro-Meteorological Forecasting, this is one of thecold airrare in May in about 40 years, since 1981.

According to historical monitoring data of Lang Station (Hanoi), on May 4, 1981, the average daily temperature was recorded at 19.6 degrees and on May 5, 1994 it was 19.8 degrees.

In addition to the sharp drop in temperature, there will also be heavy to very heavy rain from May 13, especially in the mountainous areas of the North. There is a high risk of natural disasters such as tornadoes, lightning, hail, strong gusts of wind; landslides, floods in mountainous areas, and localized inundation in low-lying areas.

During the day and tonight (May 8), in the North and North Central regions, there will be showers and thunderstorms with rainfall of about 20-50mm/24h, in some places over 70mm/24h (rain concentrated in the afternoon and night). During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind. Risk of occurrenceflash floods, landslidesand localized flooding in mountainous areas of the North and North Central regions.

Thunderstorms in the Northern and North Central provinces are likely to last until May 11.

Hanoi area during the day and tonight there will be showers and thunderstorms at times (rain concentrated in the evening and night)./.