Cold Wave Warning: Winter has taken hold in North India. Now the effect of cold is clearly visible in the morning and late evening. Cold wave warning has been issued by the Indian Meteorological Department in many areas such as East Rajasthan, Madhya Pradesh, Uttar Pradesh, Jharkhand and Chhattisgarh. But the question arises as to how severe the cold wave warning is issued by the Meteorological Department. Also, how is this thing decided? Let us know.

Absolute minimum temperature as the first indicator

The first parameter of IMD is based on the actual minimum temperature recorded at a place. Like for the plains the border is absolutely clear. The temperature here should fall to 10 degrees Celsius or below. Apart from this, if we talk about the hilly area then it becomes even more dangerous because here a cold wave is declared when the temperature falls to 0 degree Celsius or below. Not only this, due to the mild winter pattern in the coastal areas, cold wave is declared when the minimum temperature is 15 degrees Celsius or less.

second criterion

Every region has an established normal minimum temperature for each time of the year, based on decades of data. When the actual temperature drops sharply below this normal level, the Meteorological Department considers it as a possible cold wave. A fall of 4.5 degrees Celsius to 6.4 degrees Celsius is considered as a severe cold wave, while a fall of 6.4 degrees Celsius or more is considered as a severe cold wave.

Why are these two criteria needed?

Actually the climate of India is quite diverse. What is considered cold in Rajasthan is quite different from the cold in coastal Tamil Nadu. For this reason the Meteorological Department uses both criteria to avoid incorrect or misleading classification.

How does the Meteorological Department decide to issue a warning?

The Meteorological Department monitors temperatures through a network of local observatories, Doppler radar and real-time data systems. A cold wave warning is issued when one or more criteria are met for at least two consecutive days. These warnings are then published on the Meteorological Department platform and shared with the state authority for timely public advice.

Role of real time data in warning

IMD depends heavily on the latest updates received from automated weather stations. These record the continuously changing temperature. Any sharp or sudden decline is marked and checked against general climate data. This entire process helps meteorologists to detect early signs of cold wave conditions.

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The monsoon has taken farewell in Uttar Pradesh, but due to the western disturbance, there is moisture in the weather. On Thursday, October 2, on the last day, there has been a drop in temperature in many districts of the state due to rain and strong winds. According to the Meteorological Department, light or moderate rains may occur in the areas of the state on Friday 3 October. Which includes Eastern and West UP.

According to IMD, now the temperature will fall continuously, that is, people will start feeling light cold in the morning and evening. By next week, the reasons for the rain are certain.

Temperature will fall from one to two degrees

According to the IMD, the temperature in the state remained 1 to two degrees from the front on October 3. The mercury of the day in the capital Lucknow may be between 32-34 ° C, while the minimum temperature is expected to be around 22-24 degrees. On the other hand, the temperature in cities like Varanasi and Gorakhpur in Eastern UP is likely to be limited to 30-32 degrees, where light drizzle may occur in the afternoon. While the maximum of 33-35 degrees is estimated in western areas such as Agra and Kanpur, the effect of heat will be negligible due to cloudy. The minimum temperature here is 1-3 degrees above normal, nights will be relatively warm.

Possibility of rain from October 4

The monsoon has gone, but if we talk about rain, there is a 20-30% probability of light rain in many districts of eastern Uttar Pradesh, which is being caused by monsoon residues and moist winds. Western disturbances may increase the intensity of rain in the next few days in the event of being active from October 4, but there is no red alert for Friday. Yellow alert districts will be partly cloudy, due to which the sunshine will remain mad.

Winds will last 10-15 km/h

There will be moisture in the air, as well as the wind speed is also expected to be 10-15 km/h, which will flow from the north-west direction. The level of humidity can remain 60-80%. Which can increase a little problem.

Irregular rain pattern

According to weather experts, the average temperature of UP is between 24-34 degrees in October, but this time irregular rainfall patterns are being seen due to the effect of climate change. Today, the temperature is falling 1-2 degrees falling from the previous week, which is indicating the knock of winter.