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Time of India
a day ago
- Climate
- Time of India
Skyfall! Capital's Roads Turn Into Rivers
New Delhi: Heavy to very heavy rain inundated the city on Tuesday morning, with the Ridge weather station logging 129.8mm of precipitation between 8.30am and 5.30pm. The base station at Safdarjung recorded 68.1mm of rainfall in the same period. Lodhi Road also experienced heavy rainfall measuring 72.2mm. The intense precipitation on Tuesday took the monthly rainfall for July beyond the normal, with Delhi logging 220.2mm during the month to overtake the long-period monthly average of 209.7mm. IMD classifies rainfall as light when it measures up to 15.5mm in a 24-hour window, moderate when it is between 15.6 and 64.4mm. Rainfall is heavy if the precipitation is between 64.5mm and 115.5mm and very heavy when it measures over 115.5mm. The Met department had only forecast moderate rain for the day, and the heavy showers on Tuesday took the city by surprise. Catching the people unprepared, the rain caused widespread traffic snarls and waterlogging. You Can Also Check: Delhi AQI | Weather in Delhi | Bank Holidays in Delhi | Public Holidays in Delhi IMD attributed the downpour to the monsoon trough passing close to Delhi-NCR. According to the weather officials, the moisture level spiked in the region coming from a low-pressure area. With the conditions likely to remain the same over the next few days, IMD has predicted light to moderate rainfall on Wednesday and Thursday too. "The monsoon trough at mean sea level continues to pass through Sri Ganganagar, Delhi, with the centre of a low-pressure area over northwest Madhya Pradesh, Satna, Daltonganj, Jamshedpur, Digha, and then east-southeastward towards northeast Bay of Bengal," said the IMD bulletin on Tuesday. "The upper air cyclonic circulation over south Punjab and adjoining Pakistan extending up to 1.5km above mean sea level persists. The upper air cyclonic circulation over northwest Uttar Pradesh and the neighbourhood at 1.5km above mean sea level also persists." According to Mahesh Palawat, vice-president, climate change and meteorology, Skymet, the monsoon trough line was passing through Delhi on Tuesday, which was what led to the significant precipitation. Palawat also explained that a low-pressure area in northwest Madhya Pradesh and adjoining northeast Rajasthan brought additional moisture to the region. While the showers ceased around late morning, the sky remained overcast throughout the day, bringing the daytime temperature down by six degrees. The maximum temperature recorded at the base station of Safdarjung was 29.1 degrees Celsius, six degrees below normal and the lowest maximum since July 8, 2023. The maximum temperature the previous day was 35.6 degrees. The minimum on the day was 26.8 degrees Celsius, which was one below normal and around two degrees lower than Monday's 28.4 Celsius. According to IMD, the maximum temperature on Wednesday is likely to be 30-32 degrees Celsius and the minimum between 23 degrees and 25 degrees Celsius. The rain had a positive impact on the air quality, a slight improvement from the previous day. The air quality index, on a scale of 0 to 500, was 72 on Tuesday against 86 on Monday, both in the 'satisfactory' category. According to the air quality early warning system, the city is set to enjoy 'satisfactory' air till Aug 1.
Time of India
3 days ago
- Climate
- Time of India
Expect a rainy end to month
New Delhi: The Delhi-NCR region is expected to witness rain in the remaining days of July due to an approaching low-pressure system. Though the India Meteorological Department has not issued any colour-coded warnings, it has predicted light to moderate precipitation in the capital from Monday to Wednesday, followed by scattered light showers on Thursday. "The well-marked low-pressure area over northwest Madhya Pradesh is moving towards east Rajasthan and weakened into a low-pressure area. It will change direction towards the northeast and will reach northeast Rajasthan and adjoining north Madhya Pradesh by Monday. Excess of monsoon trough will also be just south of Delhi. The Western disturbance is over Jammu Kashmir," said Mahesh Palawat, vice-president at Skymet Meteorology. Due to the combination of these systems, heavy to very heavy rain is expected over Uttarakhand and western districts of UP, northeast Rajasthan and north Madhya Pradesh. "Delhi and parts of Haryana may also get moderate showers on Monday and Tuesday," said Palawat. You Can Also Check: Delhi AQI | Weather in Delhi | Bank Holidays in Delhi | Public Holidays in Delhi On Sunday, no rainfall was recorded in the city from 8.30am to 5.30pm. The high mercury along with high humidity continued to cause discomfort. The maximum temperature was recorded at 37.5 degrees Celsius. However, relative humidity oscillated between 59% and 87%. The Heat Index (HI) or 'feel like temperature' was recorded at 48.3 degrees Celsius at 5.30pm. The minimum temperature, however, stood at 28.8 degrees Celsius. On Monday, the maximum temperature is likely to go up to 35 degrees Celsius, while the minimum is expected to be around 26-28 degrees Celsius.
The Hindu
14-05-2025
- Climate
- The Hindu
Why do Andhra Pradesh and Telangana get so hot during the summer?
On May 12, 17 districts of Andhra Pradesh recorded temperature above 41° C, with the A.P. State Disaster Management Authority (APSDMA) saying heatwave-like conditions are set to prevail in the northern districts of Srikakulam, Vizianagaram, Paravathipuram-Manyam and East Godavari, and Kakinada. Mercury levels surged past the 40° C mark across all 33 districts of Telangana on April 21. Adilabad was the hottest with a maximum temperature of 44° C, according to data from the Telangana Development Planning Society. Situated on the eastern side of the Deccan plateau in South India, Andhra Pradesh and Telangana feature regularly on the list of Indian States most prone to heatwaves during the summer. Both Andhra Pradesh and Telangana experience very hot summers due to a mix of geographical and climatic reasons. First up: the geographical location of the States. Latitudinally, both Andhra Pradesh and Telangana fall under the Tropic of Cancer. This puts the States in the Torrid (or tropical) Zone – a region characterised by its hot and humid weather. 'Both AP and Telangana are near the Tropic of Cancer, therefore the sun is vertically above these States during summer months, leading to increased solar radiation and heating,' Mahesh Palawat, Vice president Meteorology and climate Change at Skymet, told The Hindu. Telangana experiences an additional layer of continental climate too. Telangana is a landlocked State, with no major water bodies nearby to moderate temperatures. As a result, it experiences a continental climate, where temperatures can rise sharply during the day. This is also true for interior districts of Andhra Pradesh, which are far from the sea. According to Mr. Palawat, most parts of Telangana lie on the rocky terrain of the Deccan plateau with black soil, which absorbs more heat, causing temperatures to spike. 'Land surface, terrain and green cover make a lot of difference to the temperature of an area,' Vimal Mishra, professor at IIT Gandhinagar, told The Hindu. 'If you compare these States to regions which are under intensive agriculture or have dense forests, those areas are much cooler due to evaporative cooling,' he said. Evaporative cooling is a process that leads to a reduction in temperature of the surroundings as water evaporates. Water requires energy to convert from liquid to gaseous state. In drier climates, when water evaporates, it takes up heat from the surroundings as its source of energy to convert to vapour, thus cooling the surroundings. 'The terrain of Telangana and Andhra Pradesh is rocky and there isn't much agriculture during summer at least, and effect of irrigation is minimal,' Dr. Mishra said. He also said that there is ample research to show that irrigation makes a lot of difference to summer air temperatures, and it can reduce dry bulb temperatures and suppress heatwaves. This phenomenon is very well pronounced in areas like the Indo-Gangetic plains, he added. 'Irrigation involves using water on land surface, which is stored as soil moisture. During high temperatures in summer, evaporation from soil and transpiration from plants causes evaporative cooling in the area, reducing the intensity of heatwaves,' Dr. Mishra said. The rocky terrain of Andhra Pradesh and Telangana does not allow for this phenomenon to be pronounced enough for it to make a difference in temperatures. Lack of sufficient rainfall is another factor that leads to high summer temperatures in Andhra Pradesh and Telangana. 'Between March and May, these States don't get enough rainfall to cool down the temperatures. Monsoon reaches here after June 10. This causes less cloud cover and more sunshine, hence leading to higher temperatures,' Mr. Palawat said. Loss of forest cover also leads to reduction in evapotranspiration, leading to increase in localised temperatures. According to the State of Forest Report 2023, Andhra Pradesh lost 138.66 sq km of forest cover compared to the 2021 assessment, while Telangana lost 100.42 sq km. Challenges and mitigation According to Dr. Mishra, the absence of early warnings forecast system based on hourly observations is one of the biggest challenges to mitigating heatwaves. 'The India Meteorological Department has started working in this area, but lot of progress is still to be made.' Understanding the risk is the first step towards mitigating impact of heat waves, which should be followed by differentiating districts based on dry heat and humid heat, Dr. Mishra said. 'Early warning systems have proven to be very effective for heatwaves, but they remain ineffective because we don't understand the differential risk – heat challenges require different solutions based on the local nature of impacts,' he said.
Hindustan Times
10-05-2025
- Climate
- Hindustan Times
Showers to continue in Delhi, heat set to return from Tuesday: IMD
The scattered rain that brought brief respite to Delhi and its surrounding areas on Saturday left residents with mixed feelings, as humid heat returned by the by the India Meteorological Department (IMD) mentioned similar conditions will prevail on Sunday. It is not likely to rain on Monday and Tuesday, and the dry westerlies are also expected to lead to a rise in temperature and fall in humidity. 'Cloudy skies persisted throughout Saturday and is expected to continue over the next week as well. Very light rain, accompanied by thunderstorm or lightning and strong surface winds of speed 30-40kmph, gusting upto 50kmph, are expected on Sunday as well,' a Met official said. Surface winds at 15-25kmph, occasionally rising to 35kmph are expected to continue on Monday and Tuesday as well, the official added. Mahesh Palawat, vice president at Skymet, said, 'There might be isolated rain in parts of Delhi on Sunday but after that, chances are very low. The western disturbance impacting the region will pass. Moreover, the cyclonic circulation over northeast Rajasthan had also been impacting the weather activity, which is expected to subside.' 'Following this, dry westerlies will start flowing in the region, as a result of which temperature is expected to rise and humidity is expected to decrease,' Palawat added. Safdarjung, representative of Delhi's weather, received 12.8mm of rain between 11.30am and 2.30pm. Palam received 5.3mm of rain in 24 hours till 8.30am on Saturday and then 3.1mm of rain between 11.30am and 2.30pm. Other weather stations like Lodhi Road and SPS Mayur Vihar received 17.5mm and 13.5mm rainfall in the afternoon as well. No rain was recorded after that till 5.30pm. Delhi's maximum temperature was recorded at 35.9 degrees Celsius (°C) on Saturday, which was 3.4°C above normal and down from 36.7°C a day before. The minimum was logged at 25.8°C — marginally up from the normal 25.1°C and Friday's 25.7°C. According to forecast by IMD, the maximum temperature is likely to be around 37-38°C on Sunday and then 39-41°C by Tuesday. The minimum, too, is expected to rise and reach 27-29°C by Monday. The city's air quality, meanwhile, deteriorated but continued to remain in the 'moderate' category. The 24-hour average air quality index (AQI) was recorded at 189 (moderate) at 4pm on Saturday, as compared to 151 the day before, according to Central Pollution Control Board's daily national bulletin. Forecasts by Air Quality Early Warning System (AQEWS) for Delhi suggest that the air quality is expected to remain in the 'moderate' category for the next two days and then deteriorate to 'poor' by Tuesday. 'The air quality is likely to be in the moderate category from Sunday to Monday and poor on Tuesday. The outlook for the subsequent six days is that the air quality is likely to be in the poor to moderate category,' the AQEWS bulletin stated on Saturday evening.
Hindustan Times
07-05-2025
- Climate
- Hindustan Times
Rain, thunderstorms likely to continue over NW, central India for next 5 days: IMD
Rain coupled with thunderstorms is likely to continue over northwest and central India for next five days with maximum intensity including hailstorms and gusty winds on May 8, India Meteorological Department (IMD) said. Heavy rainfall accompanied with thunderstorm and lightning is likely over northeast India till May 11. (HT photo) Heavy rainfall is also expected at isolated places over east Rajasthan and Uttarakhand on Thursday. Heavy rainfall along with thunderstorm, lightning and squally winds are likely to continue over Gujarat state on Thursday with a possibility of isolated extremely heavy rainfall over Saurashtra and Kutch. Heavy rainfall accompanied with thunderstorm and lightning is likely over northeast India till May 11. Unusual weather marked by gusty winds and overcast skies had started around May 1 and has been continuing since then over NW India and other parts of the country. 'This weather is very unusual in May. Thunderstorm activity will continue over NW India for next 3-4 days, but some models are also showing that thunderstorm, gusty winds will continue till May 13-14 marked by easterly winds, western disturbance and cyclonic circulation over the northern plains. Western Disturbance (WDs) are impacting frequently, and they are traveling slightly south of their normal position leading to impacgt on the plains,' said Mahesh Palawat, vice president, climate and meteorology, Skymet Weather. Southwest monsoon is very likely to advance into South Andaman Sea, some parts of Southeast Bay of Bengal and Nicobar Islands around May 13, IMD has forecast. The normal date for monsoon advancement over the South Andaman Sea is May 22. 'Monsoon advancement over South Andaman Sea is expected a week earlier than normal. But we cannot say if monsoon arrival over Kerala will also be early,' said Palawat. Normally, monsoon arrives over Kerala on June 1. A western disturbance as a cyclonic circulation is lying over West Madhya Pradesh in lower to upper tropospheric levels. An upper air cyclonic circulation is lying over northwest Madhya Pradesh in lower tropospheric levels. An east-west trough is running from southwest Rajasthan to north Jharkhand in lower tropospheric levels. A trough is running from northeast Arabian sea to cyclonic circulation over West Madhya Pradesh in lower & middle tropospheric levels. Also Read:14 dead in rain-related incidents in Gujarat; more thunder, dust storms expected A fresh western disturbance is likely to affect Westen Himalayan region from May 9 onwards. Under the influence of these systems, scattered to fairly widespread light to moderate rainfall with thunderstorm, lightning and gusty winds speed reaching 40-60 kmph likely over Jammu-Kashmir-Ladakh-Gilgit-Baltistan-Muzaffarabad, Himachal Pradesh, Uttarakhand. Meanwhile, heat wave conditions are likely in isolated pockets of Sub-Himalayan West Bengal and Sikkim on May 10 and 11; Gangetic West Bengal till May 13; Odisha, Bihar and Jharkhand till May 13. Hot and humid weather is likely to prevail over Odisha on May 8; Tamil Nadu, Puducherry, Karaikal, Kerala and Mahe on May 8.
