Indian Institute of Tropical Meteorology

State of the Climate in Asia 2024

The World Meteorological Organization’s State of the Climate in Asia 2024 report warns that the region is warming nearly twice as fast as the global average, driving more extreme weather and posing serious threats to lives, ecosystems, and economies. In 2024, Asia experienced its warmest or second warmest year on …

Warming Indian Ocean weakening monsoon circulation, says study

PANJIM: Monsoons in the country may be in for bad news as scientists predict a significant decreasing trend in the monsoon rainfall over central India. Dr Roxy Mathew Koll, scientist at the Indian Institute of Tropical Meteorology in a recent paper published in the Nature Communications journal said that rapid …

End the killing fields

This is our season of despair. This year, it would seem, the gods have been most unkind to Indian farmers. Early in the year came the weird weather events, like hailstorms and freak and untimely rains that destroyed standing crops. Nobody knew what was happening. After all, each year we …

22% monsoon deficit in August, third driest since 1993

August ended with a higher-than-anticipated rainfall deficit of 22% and with top India Meteorological Department officials saying the monsoon could start withdrawing in the next few days, the chances of a second successive drought year in the country appear high. IMD said the all India weighted average rainfall in August …

‘Bruce Lee’ El Nino: ‘Sept likely to see below normal rains’

At least 13 per cent of the divisions had excess rainfall, 51 per cent had normal and The country may still be pinning its hopes on some rainfall in September, but the El Nino is going to negate that possibility, say Met officials. The present El Nino is the strongest …

El Nino effect: Weak monsoon to continue

The ongoing dry spell, which was expected to continue till August end, may get extended to the first week of September. A recent extended range forecast of the Indian Institute of Tropical Meteorology (IITM) states that the El Nino effect may dominate the remaining days of August and first week …

Vehicular pollution in city has gone up 35% in 5 yrs

PUNE: This year, automobiles in the city are expected to release an estimated 12.6 thousand tonne of particulate matter, which is less than 10 microns in size (PM10), marking a 35.71% increase from the levels in 2010. The drastic rise in vehicular pollution is far more than the increase in …

Pollution up as rains play truant

PUNE: The air quality is usually good in monsoon because air pollutants get washed away in the rain water. But, below average rainfall this year in July has resulted in a surge in pollution levels across the city. According to records of the system of air quality forecasting and research …

El Niño effect: Govt expects below-normal rain

The country has 7% less rain than normal during the period between June 1 and July 20 The El Nino weather effect will further impact the southwest monsoon in the remaining part of the four-month season that started in June. In a written response to a question on this in …

Monsoon likely to gain pace across country after July 25

PUNE: After satisfactory downpour in most parts of the country in June, the monsoon has taken an extended break and may not return in full vigour till July 25, says a range forecast released by the Indian Institute of Tropical Meteorology (IITM). The June 30 forecast, however, predicts some rainfall …

Indian Ocean warming has weakened Monsoon in parts of India: Study

Washington: Rapid warming of the Indian Ocean in the past century has led to a significant decrease in summer Monsoon rainfall over the central-east and northern regions of India, a new study led by an Indian scientist said on Tuesday. An international team of researchers led by Dr Roxy Mathew …

Indian Ocean Dipole and the monsoon: The Joker in the forecast pack

Dr Suryachandra Rao, Associate Mission Director, Monsoon Mission, at the Indian Institute of Tropical Meteorology (IITM), explains a key atmosphere-ocean phenomenon. What is the Indian Ocean Dipole (IOD)? It is an atmosphere-ocean coupled phenomenon in the tropical Indian Ocean (like the El Nino is in the tropical Pacific), characterised by …

Capital on cloud nine

Elevated toxic ozone levels to reduce with fall in temperature and a partially cloudy sky today Finally Delhi has some good news. The elevated toxic ozone levels in the city are going to reduce drastically by Sunday with temperature going down and partially cloudy sky predicted for the Capital. This …

More heat waves coming, warns CSE

Here is more bad news for Delhiites. The Capital is now witnessing a rise in night-time temperature. And in worse news, the number of heat wave days has been showing an ascending trend, warns the Centre for Science and Environment (CSE). “Climate records show that human-induced global warming had turned …

More heatwaves in offing due to global temperature rise: CSE

The intense heat wave sweeping across India could be another manifestation of an extreme weather event, a green body on Thursday said, warning that more heat waves were in the offing due to rise in global temperatures. Centre for Science and Environment (CSE) also noted that about 2,000 people have …

With heat, toxic ozone level is also rising in city

As temperatures soar in the national capital, levels of toxic ozone, responsible for causing a number of health problems, especially for asthmatics, have crossed permissible limits, the met department said on Thursday. With torrid heat wave continuing in the capital, Delhi recorded maximum temperature at 41.1º Celsius, a notch above …

More heat waves in the offing: CSE

Centre for Science and Environment says cities feel the brunt of the elevated temperatures, because of the magnified effect of paved surfaces and a lack of tree cover. The intense heat wave sweeping across India could be another manifestation of an extreme weather event, a green body on Thursday said, …

What’s fouling air? Data puzzling govt

A lot of confusion seems to exist over what really contributes to air pollution, particularly PM2.5 (fine, respirable particles) from the transport sector or from vehicles in Delhi. A letter accessed by TOI written by IIT professor Dinesh Mohan to the transport ministry claims that people may be overestimating the …

El Nino to impact monsoon in South Asia, says climate forum

El Nino is not only expected to affect monsoon in India but also in neighbouring countries like Sri Lanka, Pakistan, Nepal and some parts of Myanmar. The 6th session of the South Asian Climate Outlook Forum (SASCOF), a sub-regional body of the World Meteorological Organization (WMO) devoted to specific monsoon …

Global warming behind freak rains: Top Met official

Global warming coupled with changes arising out of an evolving El Nino may have combined to cause the heavy spells of unseasonal rain which have devastated crops in many parts of India since late February, a leading meteorologist has said. India received nearly double its average rainfall this March, making …

New app to check air quality

In a bid to enhance awareness of the hazards of air pollution, India’s first ‘air quality’ Mobile App, SAFAR-Air, was launched on Tuesday at the Indian Institute of Tropical Meteorology in Pune. The application, developed by scientists at IITM, will enable citizens to check their city’s air quality in real …

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