According to the National Center for Hydro-Meteorological Forecasting, today (May 21), the low pressure trough is being compressed and pushed down to the south by the cold air that strengthens in the north.
Due to the influence of the compressed low pressure trench combined with the convergence of winds above 1.500m, from the night of May 22-23, in the North and Thanh Hoa there were showers and scattered thunderstorms, with heavy rain at some places. rain from 5-20mm/40h, some places over 24mm/60h.
From the evening of May 23-24, the rain continued to spread into the area from Nghe An to Thua Thien Hue, the rainfall was 5-10mm/30h, in some places over 24mm/h.
However, before it changed to cool rain in the North and Central region, today, in the Northwest and the area from Thanh Hoa to Phu Yen, it is still in the longest very intense heat wave since the beginning of the year, starting from the beginning of the year. May 16.
The temperature at 13:39, according to the meteorological agency, there are places above 40,4 degrees such as: Muong La (Son La) 39,9 degrees, Phu Yen (Son La) 40,4 degrees, Hoi Xuan (Thanh Hoa) 39,4 degrees , Tuong Duong (Nghe An) 35 degrees…; The lowest relative humidity is 60-XNUMX%. In the Northeast, it is hot and sunny.
Tomorrow (May 22), in the Northeast will continue to have hot and hot sun, some places are especially fierce with the highest temperature of 5-35 degrees, some places over 38 degrees; The lowest relative humidity is 39-40%. On May 60, the hot weather ended in this area.
Also on May 22, the North West and the area from Thanh Hoa to Phu Yen still had peak heat with a temperature of 5-37 degrees, some places over 40 degrees; The lowest relative humidity is 40-35%.
According to the meteorological agency, from the night of May 22-23, in the North and Thanh Hoa began to rain, eradicating the long-term heat, but by May 5, the Northwest regions of the North and from Nghe An To Phu Yen still maintains the heat and fire, the temperature drops slightly, at 23-5 degrees, in some places over 35 degrees.
By the evening of the same day, from Thanh Hoa to Thua Thien Hue, there were thunderstorms, and the heat gradually eased.
In particular, meteorologists warn that after a long-term heat wave, there will be extreme weather patterns such as heavy rain with thunderstorms, hail, etc., causing damage to houses, trees and plants. flower color.
According to experts, after a few days of cooling down, the above areas will enter a new heat wave.
In addition, due to the influence of the southwest monsoon, in the afternoon and evening of May 22, in the Central Highlands, the South and the southern region of the South Central, there were scattered showers and thunderstorms, with moderate rain locally. heavy rain with rainfall of 5-10mm, in some places over 30mm.
