386 thoughts on “Chennai summer expected to begin

  1. Hot and Humid day with Clouds Developing over SSE. Chances for Isolated Showers over North Coastal Tamilnadu.

  2. temp is expected to rise steadily after april 29th and tat heat wave would continue till 3rd of may, followed by a bit of relief for 7 days starting from 4th of may till may11th..

  3. shocking!! swm is just 15 days away to enter into extreme parts bay of bengal,s.andaman sea.. still no models showing the onset happening over bay of bengal islands in their run.

  4. Tirunelveli continues to get rains, Tamil Nadu Rainfall ending 8.30 am on 26.04.2015
    ==================================
    The cyclonic circulation extending upto 0.9 km a.s.l. over Comorin area and neighbourhood now lies over Comorin and adjoining Lakshadweep areas. The trough extending upto 1.5 kms asl. runs upto interior Tamil Nadu across Chhattisgarh and coastal Andhra Pradesh.

    in mm (min 5 mm)

    Lower Papanasam, Tirunelveli – 56
    Servalar, Tirunelveli – 53
    Manimutharu, Tirunelveli – 46
    Papanasam, Tirunelveli – 45
    Sethubavachatram, Thanjavur – 36
    Nanguneri, Tirunelveli – 26
    Upper Bhavani, Nilgiris – 25
    Eravangalar, Theni – 15
    Pykara, Nilgiris – 14
    Mukurthy, Nilgiris – 14
    Singara, Nilgiris – 14
    Ambasamudram, Tirunelveli – 12
    Periyar, Theni – 10
    Ambur, Vellore – 10
    Kadanadhi, Tirunelveli – 10
    Manalar, Theni – 10
    Kalakkadu, Tirunelveli – 9
    Nambiyaru, Tirunelveli – 8
    Avalanche, Nilgiris – 7
    Palacode, Dharamapuri – 7
    Chennai Marina Beach – 5
    Budalur, Thanjavur – 5
    Nedungal, Krishnagiri – 5
    Virinjipuram, Vellore – 5
    K.V.Kuppam, Vellore – 5
    Thunnakkadavu, Coimbatore – 5
    Tiruvalangadu, Tiruvallur – 5
    Kodimudiyaru, Tirunelveli – 5
    Ramanadhi, Tirunelveli – 5

    Vagaries Rainman – http://tamilnaduweatherman.blogspot.in/p/2015-tamil-nadu-rainfall-data.html

    Tamil Nadu Weatherman – https://www.facebook.com/tamilnaduweatherman

  5. Bodinaickanur (Theni Dist)

    7

    Sivagiri (Tirunelveli Dist), Pollachi (Coimbatore Dist), SenDamangalam (Namakkal Dist)

    5 each

    Valparai pto (Coimbatore Dist), Bodinayakanur arg (Theni Dist), Uthagamandalam AWS (Nilgiris Dist)

    4 each
    Thirukoilur arg (Villupuram Dist), Sankarankoil (Tirunelveli Dist), Namakkal Namakkal Dist)

    3 each

    Sholavandan (Madurai Dist), Padalur (Perambalur Dist), Shencottah (Tirunelveli Dist), Valparai taluk office (Coimbatore Dist), Sivakasi (Virudhunagar Dist), Periyakulam (Theni Dist), Thenkasi (Tirunelveli Dist), Rajapalayam (Virudhunagar Dist)

    2 each

  6. 10:48am, Karaikal – Huge thunderstorm developing over the sea!!! Faint thunder heard…
    11:03 AM, Blinding rain here! #iwm

  7. These storms we see are lower level isolated ones not intensifying in altitude to get driven by mid lvl winds so thy take e se route

  8. As Selvan said, some hot days are about to begin around the first week of May ….Almost entire Indian region would come under a sheet of uniform hot conditions . Central India could be more hotter as per ECMWF forecasts ….

  9. take precaution during this unforgiving super heat going to start..drink lots of water..at least 3 litr. plan your day accordingly, eat lots of water content food, eg.spinach, watermelon,pumkin,muskmelon,fresh juices, avoid sodas. avoid fish ,meats for few weeks.

  10. Chennai will not be a direct beneficiary of SWM being rain shadow region. But why can’t it get more rains when SWM is active over Rayalaseema and S.AP.?

  11. Regarding Heat over Chennai.

    May temp will be normal, but from June to September the temp will be above normal.
    Many records will be created between June and September, below normal rainfall expected during this season, lets pray for September to come faster.

  12. Temperatures in Andhra and Telangana forecasted to reach 43 to 45 in next 2 weeks

    Super hot areas like Kothagudem Rentachintala Ramagundam may top the list from may 1 week

  13. Lots of worries over May heat..we need this heat to set the SWM in motion.
    BTW I personally feel June (with lower temperatures than May) is more uncomfortable due to late setting of Seabreeze ( it does not set on a few days)

    • Agree. We need good heat a few days of 42+ in agni nakshatram. June heat kills as days are longer. Remember 2003, 2009 and 2012 when Chennai was boiling in June heat.

  14. Good rains in AP and Telangana
    Kadapa records 43.2 degree centigrade maximum temperature
    Paderu records 6.7 degree minimum temperature
    …………Yesterday’s Rainfall details………….

    paderu 46.4 mm
    Enuku 44.2 mm
    palakonda 30.2 mm
    bhupalpalle 19.2 mm
    manuguru 18.6 mm
    julapalle 18.4 mm
    Mulakalapalle 16.2 mm
    bhadrachalam 16.2 mm
    Ramagundam 15.0 mm
    sultanabad 14.6 mm
    sirpur 13.4 mm
    burgampadu 12.2 mm
    venkatapur 12.0 mm
    Araku valley 11.2 mm
    devanakonda 11.2 mm
    khanapur 10.4 mm
    luxettipet 10.2 mm

  15. Temperature Today in Tamilnadu and Puducherry (27.04.2015)

    High Min Temp Tondi – 29

    Karur Paramathi
    35.5

    Dharmapuri
    34.7
    21.5
    Chennai Nungambakkam
    34.6
    28.5
    Chennai Meenambakkam
    34.2
    26.6
    Vellore
    34.6
    25.5
    Madurai
    34.6
    24.1
    Tondi
    34.2
    29
    Coimbatore
    34
    23.5
    Adirampatnam
    33.7
    26.5
    Kanyakumari
    33.6
    25.5
    Pamban
    33.4
    26.6
    Palayamkottai
    33
    24.8
    Karaikal
    32.2
    27.2
    Cuddalore
    32
    25.4
    Nagapattinam
    31.9
    27.1
    Thoothukudi
    30.3
    24.5
    Parangipettai

    25.5

    Valparai
    27
    14
    Coonoor

    22.4
    15.8
    Kodaikanal
    17.7
    11.1

  16. Tamilnadu Rainfall ending 8.30am Today (27.04.2015) in Centimeters

    Bodinaickanur (Theni Dist) – 7

    Sivagiri (Tirunelveli Dist), Pollachi (Coimbatore Dist), SenDamangalam (Namakkal Dist) – 5

    Valparai pto (Coimbatore Dist), Bodinayakanur arg (Theni Dist), Uthagamandalam AWS (Nilgiris Dist) – 4

    Thirukoilur arg (Villupuram Dist), Sankarankoil (Tirunelveli Dist), Namakkal Namakkal Dist) – 3

    Sholavandan (Madurai Dist), Padalur (Perambalur Dist), Shencottah (Tirunelveli Dist), Valparai taluk office (Coimbatore Dist), Sivakasi (Virudhunagar Dist), Periyakulam (Theni Dist), Thenkasi (Tirunelveli Dist), Rajapalayam (Virudhunagar Dist) – 2

    Pechiparai (Kanyakumari Dist), Periyanaickenpalayam (Coimbatore Dist), Nannilam (Tiruvarur Dist), Salem (Salem Dist), Mannargudi (Tiruvarur Dist), Peraiyur (Madurai Dist), Ramnad nicra (Ramanathapuram Dist), Tiruvadanai (Ramanathapuram Dist), K.m.koil (Cuddalore Dist), Perungalur (Pudukkottai Dist), Tiruvaiyaru (Thanjavur Dist), Periyakulam AWS (Theni Dist), Tiruchendur (Toothukudi Dist), DGP office (Chennai Dist), Uthagamandalam (Nilgiris Dist), Kadaladi (Ramanathapuram Dist), Paramakudi (Ramanathapuram Dist), Kayathar arg (Toothukudi Dist) – 1

      • Yes in fact it was on may 30 2003.. there was a severe cyclone in bay a week earlier which was stationary in central bay and then moved northeast to myanmar and it pulled away all moisture from the southwest causing a massive heatwave across the state.

  17. Rainfall Today till 6.30pm in (mm)

    Rajapalayam – 22
    Perambalur – 18
    Pechiparai – 13
    Manimuthar Dam – 12
    Kollimalai – 12
    Kovilpatti – 10
    Kulithalai – 8
    Periyakulam – 7
    Aduthurai – 5

  18. Cool weather continuing in mid summer in AP and Telangana
    But today there is some mild increase in temperatures.

    maximum temperatures are 3 to 5 degrees below normal
    Kadapa 41.1 (normal)
    Nizamabad 40.0 (2 degrees below normal)
    Adilabad 39.1 (2 degree below normal)
    Ramagundam 37.6 (5 degree below normal)
    kurnool 38.5 (3 degree below normal)
    Tirupati 38.5 (3 degree below normal)
    Anantapur 38.3 (3 degree below normal)
    kothagudem 38.3 (6 degree below normal)
    Rentachinthala 38 (4 degree below normal)

    Hoping temperatures increase soon

  19. Idea of separate threads like TN rainfalls/ India rainfall is great but it goes down quickly need to b at top always stuck in one place…

  20. Another tornado Orissa massive one credits to the uploader…

    A tornado accompanied with wind speed of about 250 kmph, thunderstorm, rainfall and hailstorm affected Rajkanika Block of Kendrapara district at about 4.40 pm on 31st March, 2009. 15 human lives were lost and several persons were injured. 10 villages of Rajkanika Block i.e. Barada, Badatala, Asasa, Baghabuda, Govindpur, Kantapada, (Rajkanika Block Headquarters), Ganja, Achutapur, Mukundpur, Manaidiha, Dasagharia, Mangalpur and Dalikainda were severely affected. Thousands of huge trees were uprooted and a number of houses were damaged.

    • Louisiana gets a thunderstorm every day. So much of Moisture is pumped from the Gulf of Mexico. Almost everyday I see a hook echo or a bow echo in the radar and a tornado warning.

  21. மழைக்கு வாய்ப்பு

    வெப்பசலனம் காரணமாக தமிழகம் மற்றும் புதுச்சோியில் மழை பெய்ய வாய்ப்பு. குமாி கடல் பகுதியில் மேலடுக்கு சுழற்சி நீடிக்கிறது. அதிகபட்சமாக தேனி மாவட்டம் போடிநாயக்கனூரில் 7 செ.மீ மழை பதிவு

    -புதிய தலைமுறை செய்தி

    Chances for Rain

    Due to heat convective activity type of Rainfall may occur over Tamilnadu and Puducherry. UAC persist over Kumari Coast. Heavy Rainfall of 7CM recorded at Bodinayakkanur, Theni Dist.

    Source-Puthiya Thalaimurai

  22. Cyclonic disturbances like depressions that trigger rainfall in the monsoon have lessened over the past 124 years, India Meteorological Department (IMD) data from 1891 to 2014 shows. Experts said climate change and global warming were possible causes for the falling frequency of such disturbances over the Indian seas during monsoon.
    Decadal frequency of cyclonic disturbances over the Bay of Bengal, Arabian Sea and land surface of India during monsoon season (June-September):
    1891 to 1900: 77
    1901 to 1910: 55
    1911 to 1920: 55
    1921 to 1930: 76
    1931 to 1940: 84
    1941 to 1950: 92
    1951 to 1960: 70
    1961 to 1970: 76
    1971 to 1980: 78
    1981 to 1990: 52
    1991 to 2000: 30
    2001 to 2010: 38
    Frequency of cyclonic disturbances
    2011: 4
    2012: 0
    2013: 2
    2014: 3
    source: Economic times
    Read more at:
    http://economictimes.indiatimes.com/articleshow/47045623.cms?utm_source=contentofinterest&utm_medium=text&utm_campaign=cppst

    • IMD and Myself said the same that SWM might fail this time. The parameters i have looked up of the past April’s and the present i am sure that SWM should fail this time.

      There is one unsaid rule of the nature, SWM has never failed for 2 years consecutively. Since last year it was below normal, this time we must get normal rainfall.

      Lets wait and watch, i am sure this SWM season will be very interesting.

      • of course nature will take its own course, see below the actual and Sky met forecast difference percentage chart, let us see

  23. 38 Indian Cities in High Risk Earthquakes Zones
    India still grinds northeast into Asia at roughly 5 cm every year, this movement is giving more pressure to Indian and Eurasian Plates at the top around Himalayas.

    This movement might be another reason that Chennai not getting good rainfall during NEM, but the below latitudes getting more?

    http://www.ndtv.com/india-news/38-indian-cities-in-high-risk-earthquakes-zones-758539?utm_source=ndtv&utm_medium=top-stories-widget&utm_campaign=story-8-http%3a%2f%2fwww.ndtv.com%2findia-news%2f38-indian-cities-in-high-risk-earthquakes-zones-758539

    • Nope I disagree, last couple of years SWM has been on the higher side for Chennai so that’s why NEM has been low

      • back to older data again?

        Jupi,

        I gave you the data last time that SWM and NEM are not inter-related.

        During ELNINO years alone these things has happened like whenever SWM was more, NEM was less and Vice-Versa.

        During Normal years we never had these kinds of relationship.

        If you want that data, i can bring it to you once again, but i don’t have time to prepare it.

      • Partha old is gold
        When it rains heavily during SWM the landmass cools down too quickly and allows the hpa to set in early by November….. This year SWM will be low in chennai so I’m expecting a good NEM this time

      • Hpa forms because of cool landmass partha…. If the land remains warm then we’ll get heavy rainfall during NEM

      • thats an interesting point…Jupi…to an extent you may be right i dont have evidence to prove it. but i want is that annual rainfall of 140-150 cms if that occurs anyways that should be good right

  24. Tropical Pacific approaches El Niño thresholds

    ENSO indicators in the tropical Pacific are approaching El Niño levels. Sea surface temperatures now exceed El Niño thresholds and trade winds have remained weaker than average for several weeks. This suggests some coupling between the ocean and atmosphere may be occurring. If these patterns persist or strengthen, El Niño will become established.

    All international climate models surveyed by the Bureau indicate that ocean temperatures are likely to remain above El Niño thresholds until at least the southern hemisphere spring. However, the accuracy of model outlooks at this time of year, the traditional El Niño–Southern Oscillation (ENSO) transition period, is lower than at other times.

    Based upon model outlooks and current observations, the Bureau’s ENSO Tracker is at ALERT status. This indicates that there is triple the normal chance of El Niño in 2015. El Niño is often associated with below-average winter and spring rainfall over eastern Australia, and above-average daytime temperatures over the southern half of the country.

    The Indian Ocean Dipole (IOD) remains neutral and model outlooks indicate a neutral IOD for the coming months. From May to November, the IOD can impact Australian climate. However, the Indian Ocean remains much warmer than average, which is currently influencing the Australian rainfall outlook, with an increased chance of above-average rainfall in the near term.

    • The ENSO Tracker remains at El Niño ALERT. This means the likelihood of El Niño developing in 2015 is around 70%, which is three times the normal likelihood.

      The tropical Pacific continues to show signals of a developing El Niño in both the ocean and atmosphere. Sea surface temperatures are now at levels consistent with El Niño. If these temperatures persist and atmospheric indicators exceed El Niño thresholds, an event is likely to be declared.

      International climate models monitored by the Bureau show strong consensus that central Pacific surface temperatures will persist above El Niño thresholds until at least the southern spring.

      El Niño increases the chance of a drier than normal winter and spring for much of eastern Australia and also brings above average daytime temperatures.

  25. ENSO Update,

    1. NINO 3 & 3.4 has crossed threshold value of ELNINO, the SST is 1.0C above normal in both the regions.

    2. Comparing the last couple of months Sea Sub Surface Anomaly, the present month is at the peak, the increasing trend shows up to 4C at 150M depth.

    3. Trade winds have consistently weakened in the past 4 weeks time, and if the trend continues then the ELNINO declaration will come out. The wind anomaly shows that the Westerly trade winds are picking up slowly.

    4. The increased cloudiness near the Dateline and its consistency for the past 2 months shows the sure shot of ELNINO occurrence in the coming month.

    It is sure that we will get perfect ELNINO by May or June. ELNINO modoki has been ruled out since NINO 1&2, 3 and 3.4 is hotter than region 4.

    http://www.bom.gov.au/climate/enso/#tabs=Overview

  26. Valparai PTO (Coimbatore Dist)

    5

    Tondi (Ramanathapuram Dist), Valparai taluk office (Coimbatore Dist), Pechiparai (Kanyakumari Dist), Chinnakalar (Coimbatore Dist), Perambalur (Perambalur Dist), Panchapatti (Karur Dist), Satankulam (Toothukudi Dist)

    3 each

    Rajapalayam (Virudhunagar Dist), Karaikudi (Sivaganga Dist), Tirupathur (Sivaganga Dist), K.m.koil (Cuddalore Dist), Padalur (Perambalur Dist), Tozhudur (Cuddalore Dist), Periyar (Theni Dist), Thiruthuraipoondi (Tiruvarur Dist), Musiri (Trichy Dist), Nilakottai (Dindigul Dist)

    2 each

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