According to the National Center for Hydro-Meteorological Forecasting, Northern Vietnam will see two cold fronts in the coming days. The first, arriving on October 19, will primarily affect the northeastern region, strengthening winds over the northern East Sea without impacting the mainland. The second front, expected on October 22, will bring rain and a drop in temperatures across the region.

This second cold front will lead to cooler weather at night and early morning across the north, with chilly conditions in mountainous areas. Winds over the Gulf of Tonkin will reach levels of 6, with gusts up to 8. Central Vietnam will experience moderate to heavy rains.

The meteorological agency also warned of possible tropical depression or storm activity in the East Sea between October 23-25.

Weather forecast from October 19-25 across Vietnam:

Northern Region

- October 19-22: Scattered rain and light morning fog, with sunshine in the afternoon. The northeast may see scattered showers and thunderstorms at night and early morning. Storms may bring gusty winds, whirlwinds, and lightning.

- October 23-25: No rain, with sunny afternoons. Cold weather at night and early morning, particularly in mountainous areas.

Central Region

- Thanh Hoa to Thua Thien-Hue:

  - October 19-20: Scattered showers and thunderstorms, with the potential for strong winds, whirlwinds, and lightning during storms.

  - Night of October 20-22: Moderate to heavy rain, with localized downpours.

  - October 23-25: Light rain; the southern part may see moderate to heavy rain on October 23-24, with localized downpours.

- Da Nang to Binh Thuan:

  - October 19-20: Light rain and thunderstorms in some areas, with sunny days.

  - Night of October 20-21: Moderate rain and thunderstorms, with localized downpours.

  - Night of October 21-24: Expected moderate to heavy rain and thunderstorms, with localized downpours. Heavy rain is expected to ease from October 25.

Central Highlands and Southern Vietnam

- Afternoon and Evening: Scattered showers and thunderstorms, with localized heavy rain. Strong winds, whirlwinds, and lightning are possible during storms.

Hanoi

- October 19-22: Scattered showers and thunderstorms at night and early morning, with sunny afternoons. Storms may bring gusty winds, whirlwinds, and lightning.

- October 23-25: No rain, with sunny afternoons. Cool at night and early morning.

Additionally, wave heights across most sea areas are expected to increase between October 19-25. The northern and central East Sea (including the Hoang Sa Archipelago) will see wave heights between 3-5 meters. The southern East Sea (including the Truong Sa Archipelago) and the seas off Central and South-Central Vietnam will experience waves of 2-4 meters, while other areas will have smaller waves under 2 meters.

It is worth noting that around October 21-22, a tropical convergence zone (ITCZ) is predicted to form in the central East Sea, potentially developing into a tropical cyclone. Between October 23-25, there is a high chance of tropical depression or storm activity in the East Sea.

Bao Anh