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 7am this morning, October 17, on Le Quang Dao street (My Dinh area), Hanoi was foggy. Photo: PHUC HAU

Early this morning, October 17, Hanoi experienced a relatively thicker layer of fog than usual, with visibility greatly reduced between midnight and early morning.

From early morning, in the alleys in the suburbs of Hanoi, fog fell. Photo: PHUC HAU

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

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

Hanoi sky covered in fog on the morning of October 17

The average temperature in the North and North Central regions at this time is forecast to be approximately 0.5 - 1 degree Celsius lower than the same period in many years. Weak cold air combined with high humidity from the Gulf of Tonkin, plus temperature inversion and windlessness, have created conditions for fog to form and maintain for many hours this morning.

Hanoi's temperature was chilly in the early morning of October 17 along with the first fog of the season. Photo: PHUC HAU

Meteorological experts say that the fog season in Hanoi usually lasts from October to March of the following year, peaking in December to February when the weather is cold and humidity is high. Fine dust and air pollution during this period also make the fog thicker, causing a heavy feeling and making it difficult to dissipate even when there is light sunshine.

ANGEL

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