Cold air weakens, the temperature in the North increases again. Today, September 12, the weather in the North is generally sunny with the highest temperature commonly 30 - 33 degrees Celsius.
The most notable weather area today is the Central region, with heavy to very heavy rain in many places. The cause of rain in the Central region is due to the influence of the intertropical convergence zone connected to the tropical depression in the East Sea. The circulation of subtropical high pressure, also known as the sea air mass, will gradually encroach westward, creating a high easterly wind zone affecting the Central region.
After that, the tropical convergence zone tends to gradually raise its axis to the North, so the rain area tends to return to the North.
On the night of September 13, the Northern Delta region had moderate rain, heavy rain and thunderstorms with common rainfall of 20 - 40mm, locally very heavy rain over 60mm.
On the day and night of September 14, the midland and delta areas of the Northern region, the south of Son La province, the south of Phu Tho, Tuyen Quang, and Lao Cai provinces will have moderate rain, heavy rain and thunderstorms with common rainfall from 30 - 60mm, locally very heavy rain over 100mm.
The meteorological agency forecasts that heavy rain is likely to last until the morning of September 16.
Warning level of natural disaster risk due to heavy rain, tornadoes, lightning, and hail is level 1. Heavy rain is likely to cause flooding in low-lying areas, urban areas, and industrial parks; flash floods on small rivers and streams, landslides on slopes.
Rain developments in the Central region
On the day and night of September 12, the area from Ha Tinh to the north of Quang Tri province will have moderate rain, heavy rain and thunderstorms with common rainfall from 40 - 80mm, locally very heavy rain over 150mm.
The area from the south of Quang Tri province, Hue city, Da Nang city and the east of Quang Ngai province is the center of rain. This area has heavy to very heavy rain and thunderstorms with common rainfall from 100-200mm, locally over 300mm.
The eastern region of provinces from Gia Lai to Lam Dong, the Central Highlands and the South will have rain, moderate rain and scattered thunderstorms with rainfall of 20-40mm, locally heavy to very heavy rain over 80mm.
On the day and night of September 13, the area from the south of Nghe An province to Hue will have heavy to very heavy rain and thunderstorms with common rainfall from 80-180mm, locally over 300mm.
The area from Thanh Hoa to the north of Nghe An province, Da Nang and the east of Quang Ngai province has moderate rain, heavy rain and thunderstorms with common rainfall from 30-70mm, locally over 120mm.
On the day and night of September 14, the area from Thanh Hoa to Quang Tri will have heavy to very heavy rain and thunderstorms with common rainfall from 70-150mm, locally very heavy rain over 250mm.
