N-W, central India to shiver for 5 days with 5oC plunge

| | New Delhi
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N-W, central India to shiver for 5 days with 5oC plunge

Tuesday, 25 January 2022 | PNS | New Delhi

N-W, central India to shiver for 5 days with 5oC plunge

The minimum temperatures in northwest and central India is likely to drop by three to five degrees Celsius over the next five days, leading to severe cold in Delhi and parts of Punjab, Haryana, Uttar Pradesh, Rajasthan, Gujarat and Maharashtra

Cold day to severe cold day conditions are very likely over parts of Punjab, Haryana, Delhi, Uttarakhand, Madhya Pradesh, Uttar Pradesh, Rajasthan and Gujarat over the next two to three days, the India Meteorological Department (IMD) said on Monday.

Dense to very dense fog is predicted in parts of Punjab, Uttar Pradesh, Rajasthan, Haryana, Delhi, Bihar, West Bengal, Odisha, Assam, Sikkim, Meghalaya and Tripura over the next two to three days, it said.

Meanwhile, coastal Maharashtra and Konkan region witnessed haze due to dust storms in Gujarat and south Rajasthan days after the dust storm in Karachi in Pakistan that crippled the normal life.

Due to this, Mumbai’s Air Quality Index (AQI) on Monday rose to a whopping 502, as per the System of Air Quality Weather Forecasting and Research (SAFAR). An AQI of more than 500 indicates “severe-plus” or hazardous pollution levels and can have profound health implications.

On Saturday, the IMD forecast said that a massive dust storm headed towards Gujarat and south Rajasthan. On Saturday morning, Karachi was caught off guard when a dust storm from Pakistan’s west disturbed normal life, with visibility reduced to less than or about 500 metres.

On the other hand, north and north western States are reeling under cold day conditions. According to the IMD, a “cold day” is when the minimum temperature is less than 10 degrees Celsius and the maximum is at least 4.5 degrees Celsius below normal.  A “severe” cold day is when the maximum temperature is at least 6.5 notches below normal.

In the plains, the IMD declares a cold wave if the minimum temperature dips to 4 degrees Celsius. A cold wave is also declared when the minimum temperature is 10 degrees Celsius or below and is 4.5 notches less than normal.

 A “severe” cold wave is when the minimum temperature dips to 2 degrees Celsius or the departure from normal is more than 6.4 degrees Celsius. When visibility due to fog is reduced to the range of 0 to 50 metres, it is categorised as “very dense” fog, between 51 and 200 metres, it is “dense” fog, between 201 and 500 metres “moderate”, and it is categorised as “shallow” if the visibility is between 501 and 1,000 metres.

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