Residents of Chandigarh encountered a hazardous start to their Wednesday as the season's first episode of dense fog enveloped the city. The Meteorological Centre in Chandigarh promptly issued a yellow alert, signalling a high probability of continued disruptive conditions.
Weather Details and Official Warning
The thick blanket of fog descended upon the city in the early hours, arriving around 4 am. It drastically reduced visibility to a mere 150 metres, creating perilous conditions for early morning commuters and transport services. While the fog dissipated by 10 am, the weather office cautioned that the situation is likely to deteriorate in the coming days.
The MeT department has forecast that visibility could plummet to 50 metres or even less, which classifies as "very dense fog." The active yellow alert is effective until December 20 and indicates a 50–75% probability of such foggy conditions occurring. Authorities have advised drivers to avoid speeding and to use fog lights for safety.
Regarding temperatures, the city recorded a maximum of 23°C, which is two degrees above the normal average. The minimum temperature settled at 8.3°C, also a degree above normal. The weather department expects no major shift over the next five days, with only slight variations of 1–2°C possible.
Widespread Impact on Transport and Infrastructure
The dense fog episode has significant implications for multiple sectors. For transport and aviation, the conditions are likely to affect operations at some airports, disrupt highway travel, and impact railway routes within the meteorological sub-division. Driving becomes dangerous, leading to slower journey times and an increased risk of collisions.
The power sector is also on alert, as there is a genuine chance of power lines tripping in areas experiencing very dense fog. This combination poses a serious challenge to the city's daily infrastructure and mobility.
Health Risks Associated with Dense Fog
Beyond travel woes, the dense fog brings considerable health hazards. The fog acts as a carrier for particulate matter and various pollutants. When inhaled, these particles can lodge deep in the lungs, reducing their functional capacity and leading to respiratory distress.
This pollution-heavy fog can trigger episodes of wheezing, coughing, and shortness of breath. For individuals with pre-existing conditions like asthma or bronchitis, long-term exposure can exacerbate their problems and lead to serious respiratory complications.
Furthermore, the pollutants within the fog can irritate the eyes' membranes, potentially causing infections, redness, and swelling. Residents, especially the vulnerable, are advised to take necessary precautions, limit prolonged outdoor exposure, and use protective masks when necessary.
