According to Skymet Weather, a new western disturbance is over North Pakistan and adjoining areas. However this system is weaker than previous systems.
A cyclonic circulation is over central parts of the Arabian Sea, but will not affect the weather of India. A cyclonic circulation persists over Southwest Rajasthan and adjoining Gujarat.
An anti-cyclonic circulation persists over Chhattisgarh and adjoining interior Odisha. A weather system is over the southwestern parts of the Bay of Bengal.
During the next 24 hours, the coastal areas of Tamil Nadu are expected to receive moderate to heavy rains with thunder and lightning.
Light to moderate rains are expected over interior parts of Tamil Nadu and parts of Kerala.
|Commuters wear face masks and winter clothes on a cold morning at Azadpur in New Delhi on Tuesday.(Sanchit Khanna /HT PHOTO)|
In East Madhya Pradesh, Chhattisgarh and Jharkhand, the effect of clouds will reduce and will become mainly clear and dry. However, there will be partial cloud due to which light rain may occur at one or two places.
Rayalaseema and south coastal Andhra Pradesh may also receive light rain at some places.
Delhi woke up to a chilly morning on Thursday with the minimum temperature dipping to 5.3 degrees Celsius, 3 degrees below normal, according to the India Meteorological Department (IMD)’s Mausam app.
The Capital had recorded a “cold day”, the third in a row on Wednesday, with maximum or day temperature of just 18.6 degrees Celsius, 4.6 degrees below normal.
On December 14, Palam recorded “cold day” conditions with a maximum of 17 degrees C, 6 degrees below normal. And on Tuesday, both Safdarjung and Palam stations saw a “cold day”, recording a maximum temperature of 18.5 degrees Celsius, 5 degrees below normal, and 16.7 degrees Celsius, 7 degrees below normal, respectively.
IMD scientists said Delhi has been reeling under a cold spell as it has recorded more than two “cold days” in a row now.
There was no cold wave on Wednesday in Delhi as the minimum temperature was 5.8 degrees Celsius, which is 2.8 degrees below normal, but does not meet the cold wave criteria, Hindustan Times reported.
“Cold day” to “severe cold day” conditions are likely in some pockets over Punjab, Haryana, Chandigarh, and parts of Delhi, north Rajasthan and West Uttar Pradesh during the next 24 hours, IMD said in its Wednesday bulletin. “Cold day” conditions are likely in isolated pockets over these regions during subsequent 24 hours also, it added.
IMD has warned that cold wave to severe cold conditions could have a number of serious impacts on health that shouldn’t be ignored. There is an increased likelihood of various illnesses like flu, stuffy nose or nosebleed, and shivering, which is the first sign of body losing heat. Prolonged exposure to extreme cold and can cause frostbite, which leads to the skin turns pale, hard and numb and eventually black blisters appear on exposed body parts such as fingers, toes, nose and or earlobes. Severe frostbite needs immediate medical attention and treatment.
|Photo: Weather Online|
The impact-based warning issued by IMD for “cold wave” recommends that people wear insulated shoes, moisturise skin, increase vitamin C intake, limit outdoor activities, maintain ventilation while using heaters, avoid drinking alcohol as it reduces body heat etc.
Some of those exposed to dense fog could also suffer health impacts. Dense fog contains particulate matter and other pollutants which can get lodged in the lungs, leading to episodes of wheezing, coughing and shortness of breath. Those with asthma and bronchitis are particularly vulnerable.
According to IMD a “cold day” or “severe cold day” is considered based on two parameters—a minimum temperature of under 10 degrees, and maximum temperature of 4.5 degree Celsius or 6.4 degree C below normal.
A “cold wave” occurs in plains when the minimum temperature is 10 degrees Celsius or below and/or is 4.5 notches lesser than the season’s normal for two consecutive days. “Cold wave” is also declared when the minimum temperature is less than 4 degree Celsius in the plains. Witnessing a “cold day” and “cold wave” together means the gap between day and night temperatures was lower than normal, Hindustan Times reported.
“Many places in northwest India are experiencing cold wave and severe cold day together. We are expecting the cold spell to continue over Delhi and minimum temperature to hover around 4 to 5 degrees Celsius till December 19, following which a western disturbance is expected; it will cause clouding and relieve extremely cold conditions. Places which are recording cold to severe cold day conditions are experiencing an incursion of chilly air and uplifted fog, which is not allowing the day to warm up adequately,” explained Kuldeep Shrivastava, head, regional weather forecasting centre.
Dense fog is likely over Uttarakhand, Himachal Pradesh, Haryana, Uttar Pradesh during morning hours of Thursday and over Punjab and north Rajasthan during morning hours Thursday and Friday. Very dense fog is also very likely over Punjab and north Rajasthan during morning hours of Thursday.
Meanwhile, under the influence of an easterly wave, scattered to fairly widespread rain/thundershowers very likely over Tamil Nadu, Puducherry, Karaikal, Kerala, Mahe and Lakshadweep area during the next four days. Heavy rainfall is also likely over Tamil Nadu, Puducherry and Karaikal during December 16 to 19 and over Kerala and Mahe during December 17 and 18.
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