Extremes of weather

2021: 3rd hottest Aug in 120 years, freak rain days

Sep 11, 2021: The Times of India

August 2021, which saw a huge rainfall deficit, was the third hottest August in the country in the past 120 years and was also marked by the Ridge area in the capital breaking its 24 hour rainfall record for the month.

As far as temperature was concerned, the monthly average maximum, average minimum and mean temperature over all India for the month of August during 1901-2021 shows the average ‘maximum temperature’ over all India was third highest (31.7 degree C) and average ‘minimum temperature’ was eighth highest (24.4 degree C) while the ‘mean temperature’ over all India was third highest (28.1 degree C) since 1901, making it the third hottest August.

“The observed average maximum, average minimum and mean temperature for the country as a whole during August 2021 are 31.7 degree C, 24.4 degree C and 28.1 degree C respectively, against the normal of 31.1 degree C, 24 degree C and 27.5 degree C based on period 1981-2010,” said the India Meteorological Department’s (IMD) analysis for August.

The overall rainfall deficit (24% below long period average) had led it to be the lowest August rainfall in the country in the last12 years (after 2009). The IMD said certain stations recorded ‘very heavy’ to ‘extremely heavy’ rainfall with six of them including Delhi Ridge, Car Nicobar, Aizwal, Bundi, Thanjavur and Shivpuri reporting their 24-hour respective record rainfall in August.

Rainfall in the month of August

Delhi

Some extremes

Highest single day’s rainfall in August in Delhi:

184mm: 1961, August 2: the record

Some other Aug days with high rainfall:

166.6mm: 2007, August 2

159.8mm: 2001,August 14

138.8mm: 2021, Aug 21: the ninth highest single-day spell of showers in the month of August

Rainfall in some selected years

2014

By 26 Aug 2014 Delhi was staring at a rain deficit of 46% for the season and also for the month of August, till then. In fact, the subdivision of Haryana (including Chandigarh and Delhi) had recorded the lowest rainfall across the country during that monsoon with a deficit of 65%. Punjab was a close second with a deficit of 64%. Neighbouring western Uttar Pradesh was only a shade better at 56%.

1st August

2nd August

3rd August

4th August

5th August

6th August

7th August

8th August

9th August

Aug 10 2017 : The Times of India (Delhi)

28mm rain in 9 hrs brings city to halt; Ggn down under again

Waterlogging At Several Places; More Showers Likely Today Heavy rainfall continued to lash the city on Wednesday causing waterlogging and traffic snarls at various places. The maximum temperature recorded was at 32 degrees Celsius, two notches below normal.

The capital saw 28mm rainfall in a 9-hour period. Met officials forecast more rain for Thursday morning, followed by clear weather in the next few days.

The Safdarjung observatory, which is taken as the base for Delhi's weather, recorded just 5.6mm rainfall in a 24-hour period till 8.30am on Wednesday , followed by 28mm rainfall in the next 9 hours. This brought down the maximum temperature by two notches, however, the minimum temperature was recorded at 28 degrees Celsius, one degree above normal. Humidity continued to remain high, oscillating between 78% and 97% in the past 24 hours according to Met officials. Delhi's weather stations at Lodhi road, Ridge, Ayanagar and Najafgarh all received over 10mm rainfall in a 9hour period from 8.30am to 5.30pm on Wednesday .

Meanwhile in NCR, mode rate showers--just over 32mm--lasted for a few hours from around 11am, to wreak havoc across Gurgaon, laying bare tall claims of the authorities, regarding measures they had taken to counter monsoon rain damage this year.

10th August

2018: The Safdarjung observatory recorded 45.4mm of rainfall on Friday, between 8.30am to 5.30pm, while Lodhi road and Ridge recorded 38 and 2.6mm of rainfall respectively during the same period. Officials said parts of southwest Delhi, however, failed to record any rain with both Palam and Ayanagar receiving no rainfall. Delhi’s maximum temperature on Friday was recorded at 35.8 degrees Celsius – one degree above normal. The minimum temperature, meanwhile, was 28.3 degrees C with the humidity levels oscillating between 65 to 100% during the day.

11th August

Delhi: 82.11mm rain / 2014

(Early 21st century record) Highest rain in a single day :August 11, 2014, when 82.11mm rainfall was recorded.

12th August

13th August

14th August

15th August

Bengaluru: Monday rain highest for August in 127 years TNN | Updated: Aug 16, 2017, 08:56 AM IST

Bengaluru received 128.7 mm of rainfall, the highest in a day since 1890, according to the Met department. The highest-ever rainfall recorded in the city in a day was on August 27, 1890, when Bengaluru received 162.1mm of rain.

BENGALURU: When Bengaluru went to sleep on Monday night, the city had received 44.8mm of rain for August. When it woke up on Tuesday morning, that figure had risen by 128.7mm - the highest rainfall in a day since 1890, according to the Met department. It made up nearly 88% of the rain expected over the entire month, pouring down on the city from 11pm on Monday to 4am on Tuesday.

The highest-ever rainfall recorded in the city in a day was on August 27, 1890, when Bengaluru received 162.1mm of rain. According to the Karnataka State Disaster Monitoring Centre (KSDMC), that record was broken on Tuesday. It said the city received 184cm of rain since Monday night, the highest being recorded in Bilekahalli.

The overnight rain flooded several parts of the city, submerging parking lots and entire road stretches, and snapped power in vast swathes since the early hours of Tuesday. The Yediyur lake breached a retaining wall, while foam from the Bellandur lake flowed to neighbouring localities. Over 40 rescue boats came out in ST Bed area of Koramangala, while the fire department was called to flush out water from apartments in HSR Layout, Koramangala, Jayanagar and Bannerghatta Road, among other areas. At least 26 trees were uprooted. Wildlife volunteers received panic calls as snakes entered homes in Rajarajeshwari Nagar, JP Nagar, Nagarabhavi, Thanisandra, Uttarahalli and Puttenahalli.

South Bengaluru, home to IT majors and startups, was the worst affected. BTM Layout, Bilekahalli, Koramangala, Arakere, Pattabhiramanagar and Sampangiramanagar received 12.4cm of rain or more overnight.

16th August

17th August

18th August

19th August

20th August

Delhi/ Safdarjung, 1991: 39.7 degrees.

21st August

Delhi, 2014: 38.4°C, hottest August day since 2002, five notches above normal. This was because of no rains.

Delhi/ Palam, 2014:: 39.5 degrees

22nd August

Delhi 2018

Rain brings relief, mercury to fall further in next 3 days

Several parts of the city witnessed strong showers on Wednesday following the maximum temperature of 35.8 degrees Celsius during the the day, but it also led to waterlogging and traffic snarls.

The Safdarjung observatory recorded “traces” of rainfall between 8.30am and 5.30pm. However, the Ridge weather station received 42.3mm of rainfall during this period. Other stations like Ayanagar and Lodhi Road received 12.2mm and 0.9mm of rainfall, respectively.

The maximum rainfall of 61mm was recorded at Najafgarh on Wednesday in the nine-hour period. Rainfall between 15.6mm and 64.4mm is considered “moderate” according to IMD.

Delhi’s humidity continued to stay on the higher side hovering between 60-80%. The traffic police said waterlogging was recorded on stretches like Netaji Subhash Marg, Dwarka Mor, Najafgarh-Nangloi Road, New Moti Nagar flyover, Madhuban Chowk, Punjabi Bagh and Moti Nagar.

23rd August

24th August

2018: Rain provides short-lived relief from sultry weather

Waterlogging Adds To Woes Of Commuters Strong showers lashed the capital on Thursday morning with Delhiites receiving a temporary respite from the sultry weather before humidity levels shot up once again. The Safdarjung observatory received just 0.3mm of rainfall till 8.30am and another 4.8mm in the next nine hours. Ridge and Najafgarh stations received the most rain till 8.30 am recording 48mm and 62mm of rainfall, respectively, during this period. Both locations recorded another 18.4 and 2mm of rainfall in the next nine hours, officials said.

25th August

Delhi, 2014: 38.4°C The Times of India

26th August

Delhi/ Safdarjung, 2014: 39.1 degrees Celsius, five notches above normal, the highest for the month of August since 1991. Because of the absence of rain for more than two weeks. The rise in temperatures wass a result of a combination of factors, officials said. Delhi had been witnessing unusually clear skies and the winds had been westerly. "As opposed to moisture-laden easterly winds from Bay of Bengal that are common during the monsoon season, the westerlies are dry. Pollution levels are not too high as well, so the sunlight reaching the city is bright and hot. This is the prime reason for high temperatures," said a Met official.

Delhi, Palam, 2014: 40.7 degrees Celsius, the highest since 1988.

27th August

28th August

==Gurgaon/ 128 mm rainfall/ 2018 ASHOK KUMAR |Gurugram grinds to a halt as heavy rain wreaks havoc on roads | The Hindu

28 Aug 2018 Gurugram got 128 mm of rainfall in less than six hours — the highest in the last eight years, said Deputy Commissioner Vinay Pratap Singh.

Office-goers faced nightmarish commute as underpasses and roads remain waterlogged for several hours

Light rain began around 2 a.m. and turned into a downpour between 5 a.m. and 8 a.m. The Gurugram-Delhi Expressway was the worst hit with traffic moving at a snail’s pace till late in the afternoon. Hero Honda Chowk, the perennial flooding point on the expressway, was again inundated. The newly-constructed underpass at the chowk was completely submerged.

In a rerun of the monster jam witnessed in Gurugram in 2016. More than three hours after the rains stopped around 8 a.m., all major intersections of the city: Rajiv Chowk, IFFCO Chowk, Netaji Subhash Chowk, Signature Towers, Atul Kataria Chowk and Hero Honda Chowk, were waterlogged leading to long traffic snarls.Motorists travelling from Jharsa Chowk to HUDA City Centre through Signature Towers had a tough time as they remained stuck for around an hour. Similarly, the stretch extending from HUDA City Centre metro station to Netaji Subhash Chowk on Sohna Road also witnessed major congestion. Besides the internal roads in Sector 15 Part-II, stretches in Sectors 14, 23, 24, 46, 29, 44, 45, 46 and DLF areas were also flooded.

29th August

29 Aug 2017

Mumbai, 151.8mm rainfall/ 2017

File:29 Aug 2017 Mumbai rains.jpg

500px

Worst rains since 2005 bring Mumbai to halt |DECCAN CHRONICLE|Aug 30, 2017

The maximum city came to a complete standstill on Tuesday 29 Aug 2017 when an unabating downpour lashed Mumbai, inundating roads, causing traffic snarls and stranding commuters. Though there were no casualties — unlike in the case of the 2005 deluge — the impact on the city residents’ life was no less.

The showers threw regular life out of gear, with several parts of the city getting flooded; road and railway services being hit badly; water entering houses and hospitals; and hapless people being stranded across the city. According to the India meteorological department, the Santa Cruz weather station recorded 88.4 mm of rainfall in the suburbs in the last 24 hours.

The Colaba weather station recorded 151.8mm of rainfall during the same time period. As per the Brihanmumbai Municipal Corporation’s automatic weather stations, from 8 am to 6 pm, the city area received 173.4mm of rainfall, whereas the eastern and western suburbs witnessed 193.85 mm and 192.77 mm of rainfall respectively.

Weather officials believe this is the heaviest and longest bout of rain since July 26, 2005 when the city was ravaged by floods.

As the rain’s fury kept increasing on Tuesday, it had huge impact on city life as several low-lying areas like Sion, Chunabhatti, Pratiksha Nagar, Hindmata, Chembur, Dadar TT, Matunga, Maheshwari Udyan, Parel, Mahim Subway, Prabhadevi, Bandra, Kurla, Vidyavihar, Powai, Santa Cruz, Juhu, Malad went underwater quickly. At many places, the water rose up to waist-level.

“It looked like 26 July had revisited the city. There was water everywhere in Central Mumbai. The entire Sion-Parel belt had gone underwater, making residents jittery. The rising water levels added to their fear. In Parsee Colony and Matunga, water had entered in several houses,” said civic activist Nikhil Desai from King’s Circle.

All major roads such as the Western Express Highway, Eastern Express Highway, Jogeshwari-Vikhroli Link Road, Santa Cruz-Kurla Link Road, Babasaheb Ambedkar Road and Lal Bhahadur Shastri Road witnessed huge traffic jams. At several places, vehicular traffic was diverted due to water-logging. South-bound traffic towards Matunga was diverted to Wadala due to water-logging on the Eastern Express Highway at Amar Mahal Junction, S.G. Barve Road and V.N. Purav Road in Chembur.

The BMC authorities asked people to stay indoors, but it was too late for most, who had to wade through dirty brown waters to offices. At some places, vehicles could barely be seen above the waterline. There were also the only-too-familiar sights of thick branches nestling on shattered windshields or dented car tops.

On Tuesday afternoon, traffic was closed on the Bandra-Worli Sealink due to heavy water-logging at its Worli end. Poor visibility and high velocity winds further made the sealink unsafe as motorists complained of cars getting buffeted around by the wind.

As the water-logging was cleared, police finally allowed vehicular movement on the sealink.

Delhi, 31.9 °C/ 12mm rain; 2018

The Times of India: The capital witnessed strong showers for a second straight day on Wednesday, with waterlogging and traffic snarls recorded on a number of stretches in the afternoon. The maximum temperature was recorded at 31.9 degrees — three notches below normal for the season.

The Safdarjung observatory recorded 12mm of rainfall till 8.30 am on Wednesday, while another 0.4mm of rain was recorded in the next nine hours. The Ridge observatory received the highest rainfall with 41.8mm of rainfall recorded between 8.30am to 5.30 pm, officials said. Other locations like Palam, Lodhi road and Ridge received 17.7, 0.5 and 0.4mm of rainfall respectively during the same period.

30th August

31st August

Sep 01 2017 : The Times of India (Delhi) City searches for answers after 60mm of rain

Wettest Day Of Season Leaves Many Stranded

Delhi saw its wettest day of the season with 60.6mm of rainfall in a 12-hour period bringing traffic to a standstill as major intersections saw waterlogging and chaos. Met officials forecast more rainfall for Friday with light to moderate showers expected. Some parts of the city may even receive heavy rainfall.

The capital had received only 3.8mm of rainfall in a 24-hour period from 8.30am on Wednesday . The strong showers saw maximum temperature being recorded at 32.2 degrees Celsius, two notches below normal for the season. Similar rainfall activity was recorded across parts of the capital with weather stations at Palam, Lodhi Road, Ridge, Ayanagar and Najafgarh all receiving over 20mm of rainfall in a 9-hour period from 8.30am to 5.30pm on Thursday . Palam recorded 23.8mm of rainfall during this period with Lodhi Road, Ridge, Ayanagar and Najafgarh receiving 42.6mm, 22.6mm, 35.3mm and 39mm of rainfall respectively. Meanwhile Noida and Faridabad received 10mm and 54mm of rainfall during the same period.

“There will be light to moderate rainfall activity with some parts receiving heavy rainfall on Friday. We also expect rain to take place on September 2 after which the weather may clear a bit,“ said a RWFC official.

Delhi's minimum temperature was recorded at 26.6 degrees Celsius on Thursday while humidity oscillated between 76 to 100%, met officials added.

“Humidity is likely to stay high on Friday , however the maximum temperature should drop due to the rain,“ added an official.

August weather in India

Contents