According to the National Center for Hydro-Meteorological Forecasting, the current wind convergence zone is weakening rapidly, leading to a reduction in thunderstorms across the northern mountainous region, with risks of tornadoes, lightning, and hail no longer significant.

In the coming days, sunshine and rising temperatures will dominate weather conditions across the North. Around March 27-28, a weak eastward-shifting cold air mass will cause temperatures to drop slightly by about 1 degree Celsius, though the impact will be barely noticeable.

However, between March 28 and 29, scattered showers and thunderstorms are expected in northern mountainous areas.

Notably, from Monday next week (March 30), the strong influence of a western low-pressure zone will trigger localized early-season heat in the northwestern region and western areas from Thanh Hoa to Hue, with temperatures ranging from 35 to 37 degrees Celsius.

By March 31, this low-pressure system is forecast to intensify, expanding the heatwave across the northern plains and north-central region. Daytime temperatures are expected to reach 34-35 degrees Celsius, with some areas possibly exceeding this level.

Meteorologists note that due to the transitional period between seasons, northern Vietnam will continue to experience significant day-night temperature differences, sometimes reaching nearly 10 degrees Celsius.

In Hanoi, temperatures on March 30-31 are expected to range from a mild 24 degrees Celsius in the early morning to a sharp increase during midday and early afternoon, with highs of 33-34 degrees Celsius creating a distinctly hot sensation.

Earlier forecasts indicated that from now until mid-April, cold air activity will remain weak while compressing low-pressure troughs over southern China, potentially causing intermittent thunderstorms accompanied by dangerous conditions such as lightning and strong gusts in northern regions.

From now until the end of March, heat will persist in the southeastern region. Moving into April, the intensity of heat is expected to increase and expand to the Mekong Delta and parts of the Central Highlands.

Localized heat may also appear in the northwestern region and western mountainous areas of the north-central region starting in late March.

Bao Anh