Cold wave returns: IMD flags dense fog and biting chill; doctors urge precautions for respiratory and elderly patients
The IMD has warned of dense to very dense fog and a renewed cold wave across parts of north India around January 25–26, with another western disturbance expected to add moisture and worsen the ‘damp cold’ feeling. Health experts typically advise layered clothing, avoiding early-morning exposure, and extra caution for people with asthma, COPD and heart conditions during sharp temperature drops.
A fresh spell of winter hazards—dense fog, falling night temperatures and a renewed cold wave—has prompted advisories for travellers and vulnerable residents across parts of north India, as meteorologists warn that visibility and cold stress could worsen around January 25–26.
Weather conditions matter for public health because sharp drops in temperature, combined with high humidity after rain, can aggravate respiratory symptoms and increase discomfort for the elderly and those with chronic conditions. Foggy mornings can also raise the risk of road accidents and delayed emergency access in some areas.
The IMD has forecast dense to very dense fog in isolated pockets, which can reduce visibility significantly during the night and early morning. At the same time, a western disturbance is expected to influence conditions, with moisture and winds potentially intensifying the sensation of cold—particularly for those commuting in the early hours.
Public health guidance during such spells generally focuses on prevention: wearing layered clothing, keeping the head and extremities covered, and avoiding prolonged early-morning outdoor activity when temperatures are at their lowest. People with asthma, COPD or heart disease are typically advised to keep prescribed inhalers/medications accessible and to seek care promptly if breathlessness, chest tightness or wheezing worsens.
For families, the priority is protecting children and older adults from cold exposure indoors as well—ensuring adequate bedding, warm fluids and safe heating practices. Drivers are urged to use fog lights, maintain safe distances and avoid sudden lane changes, as heavy fog can turn routine travel into a high-risk activity.