The meteorological bureau has predicted a return of the cold snap to many places in Delhi-NCR between Monday and Wednesday. The minimum temperature should be around 3 degrees Celsius.
Delhi experienced an intense cold spell from January 5 to 9, the second longest of the month in a decade, according to data from the Indian Meteorological Department (IMD).
It also recorded more than 50 hours of dense fog this month, which is the highest since 2019.
Dense to very dense fog is very likely in parts overnight and in the morning over Punjab, Haryana, Delhi and Uttar Pradesh over the next 5 days.
The meteorological bureau said minimum temperatures are expected to drop further by around 2 degrees Celsius in many parts of northwestern and central India until January 17 and 18 and cold snap conditions to Severe cold spells are very likely in many parts of Rajasthan, Punjab and Haryana, and Delhi during this period.
The weather service advised people to wear several layers of loose, warm woolen clothing and cover their heads, necks, hands and toes. He further asked people to maintain ventilation when using heaters to avoid inhaling toxic fumes and to avoid or limit outdoor activities.
Large parts of northern and northwestern India recorded below normal maximum and minimum temperatures on most days this month before a disturbance from the west brought relief, said a responsible for IMD.
The IMD said minimum temperatures will gradually increase by 3 to 5 degrees Celsius from January 18 to 20 under the influence of a western disturbance.
When a western disturbance – a weather system characterized by warm, humid winds from the Middle East – approaches a region, the direction of the wind changes. Cold northwest winds from the mountains stop blowing, causing temperatures to rise.
In the plains, a cold snap is declared if the minimum temperature drops to 4 degrees Celsius or when it is 10 degrees Celsius and 4.5 notches below normal.
A severe cold spell occurs when the minimum temperature drops to 2 degrees Celsius or the deviation from normal limits is more than 6.4 notches.
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