Cold air comes early, Hanoi has fog

Meteorological experts warn that the North and Hanoi are gradually entering the foggy season, so be careful when participating in traffic because of limited visibility.

At 7:00 AM this morning, October 17th, Le Quang Dao street (My Dinh area), Hanoi, was shrouded in fog. Photo: PHUC HAU

Early this morning, October 17th, Hanoi experienced a relatively thick layer of fog compared to normal, significantly reducing visibility during the night and early morning hours.

From early morning, fog blanketed the alleyways in the outskirts of Hanoi. Photo: PHUC HAU

According to the National Center for Meteorological and Hydrological Forecasting, the main reason is that the first cold air mass of the season this year tends to appear earlier than average, starting to become active from mid-October and gradually increasing in intensity from November.

Fog over a peach orchard on the outskirts of Duong Noi ward (Hanoi). Photo: PHUC HAU

The sky over Hanoi was covered in fog on the morning of October 17th.

The average temperature in the Northern and North Central regions at this time is forecast to be approximately 0.5-1 degree Celsius lower than the same period in previous years. A weak cold front combined with high humidity from the Gulf of Tonkin, plus temperature inversion and calm winds, created conditions for fog to form and persist for several hours this morning.

Hanoi experienced cool temperatures early on the morning of October 17th, along with the first fog of the season. Photo: PHUC HAU

According to meteorological experts, the foggy season in Hanoi typically lasts from October to March of the following year, peaking in December to February when the weather is cold and humid. Fine dust and air pollution during this period also make the fog thicker, creating a heavy, oppressive feeling that is difficult to dissipate even with mild sunshine.

ANGEL

Source: https://www.sggp.org.vn/khong-khi-lanh-ve-som-ha-noi-xuat-hien-suong-mu-post818490.html