A thick veil of fog has descended upon the Ganges Delta, casting a winter shroud over the fertile lands of eastern India and Bangladesh. The image, captured by NASA's Terra satellite on January 6, 2026, reveals a T-shaped area of low-lying clouds, with dense fog blanketing the region like a heavy blanket.
This phenomenon is not unusual in the Indo-Gangetic Plain during the winter months, when cold temperatures and light winds create ideal conditions for radiation fog to form. However, the extent of this year's fog has been particularly severe, posing significant disruptions to daily life and air travel.
According to NASA's Earth Observatory, the dense fog was caused by a cold wave that swept across the region, bringing ground temperatures down to near-freezing levels. The Bay of Bengal, which borders the delta, also played a role in the formation of cloud streets - long, parallel bands of clouds that can form when cold air passes over warmer open water.
While these clouds may appear scenic from above, they pose significant hazards for people on the ground. In Dhaka's international airport, for example, dense fog caused major disruptions to flights, with many departures delayed or cancelled altogether. Similar disruptions were reported in parts of northern, central, and eastern India, where foggy conditions snarled daily life and travel.
The impact of this year's fog on the region is a reminder of the complex interactions between climate, weather patterns, and human activity. As temperatures continue to rise globally, it is likely that extreme weather events like this will become more frequent and intense - requiring us to adapt our understanding of the natural world and our place within it.
For now, the people of Bangladesh and India can only wait for the fog to lift and the sun to shine through, a welcome respite from the cold and darkness that has gripped their region.
This phenomenon is not unusual in the Indo-Gangetic Plain during the winter months, when cold temperatures and light winds create ideal conditions for radiation fog to form. However, the extent of this year's fog has been particularly severe, posing significant disruptions to daily life and air travel.
According to NASA's Earth Observatory, the dense fog was caused by a cold wave that swept across the region, bringing ground temperatures down to near-freezing levels. The Bay of Bengal, which borders the delta, also played a role in the formation of cloud streets - long, parallel bands of clouds that can form when cold air passes over warmer open water.
While these clouds may appear scenic from above, they pose significant hazards for people on the ground. In Dhaka's international airport, for example, dense fog caused major disruptions to flights, with many departures delayed or cancelled altogether. Similar disruptions were reported in parts of northern, central, and eastern India, where foggy conditions snarled daily life and travel.
The impact of this year's fog on the region is a reminder of the complex interactions between climate, weather patterns, and human activity. As temperatures continue to rise globally, it is likely that extreme weather events like this will become more frequent and intense - requiring us to adapt our understanding of the natural world and our place within it.
For now, the people of Bangladesh and India can only wait for the fog to lift and the sun to shine through, a welcome respite from the cold and darkness that has gripped their region.