202 thoughts on “Mostly dry with few occasional showers

  1. in today’s BL, it talks about some deficit anolomy for southern peninsula and favourable MJO phase starting from 23rd november.

    Can someone please have a look and explain what do they mean exactly?

  2. no rain at thoraipakkam…wish rains continue n somehow force companies declare holiday on thursday…let us know, if there is any such possibility

  3. FRNZZZZZZZZZZZZZZZZ……..THE core of the low pressure s near 50 km away 4m andhra-tamil nadu border…this is same like jal ,where clouds were in land but system was in sea…..tis depression weakned slightly.. it will surpasses us..AND head 2wards N.andhra..IT WILL CONSOLIDATE IN WEST CENTRAL BAY AND GIVE HEAVY RAIN TO COASTAL ANDHRA..

  4. Friends just recall my earlier posting in this column this after while responding Guru’s query, it appears good rain has started again everywhere including at Chrompet – Guru are you there?

  5. can we get another 2 centimeters of rain fall during night to finish more than 5 centimeters of rainfall for a day, which is quite good.

    still the core system lies very close to chennai coast, we can expect at least few heavy showers to night, as normally north east monsoon current gather strengths after sun set.

    ss.

  6. in another 30 minutes or so, chennai would get heavy shower as firm red lines spread for more than 25 kms north and north east of chennai.

    pl. see the closed radar readings.

    interesting. this system is moving so slow, and we may get shower till tomorro morning at least.

    ss.

  7. SSuresh – i think I will have to send you sweets- it is raining in Chrompet – Everyone should understand -all of them are expecting continuous rains in Chennai – it will not happen here. சென்னையை பொறுத்தவரை விட்டு விட்டுதான் மழை பெய்யும் please undertand

  8. Northeast monsoon rains occur in spells of about 3 to 4 days duration. Spells exceeding 4 days are much less (20%). There are at times long spells of dry weather with little or no rain.

  9. What force causing the system to move north vinood??? Why rainfall so non-uniform heavy in some places much lesser in others ?

    Super Say

  10. ********************************************************
    Jon how much rain will we get tommorow…..!!??

    ********************************************************

  11. super sai, The low pressure circulation is not tight enough to cause a very organised thunderstorm so we are seeing unorganised area of rain.

  12. s..jon ..the radar image shows huge massive clouds west of pudichery….central and interior TN may get heavy rain …..bu rain may decrease slowly 4 us(chennai)….

  13. supersai,For north indian and western pacific ocean the movemnt of cyclone is mostly north caused by the sterring winds, it will move westward and other directions only if there are any other systems like high pressure or any disturbance affect it.

  14. from the insat pictures, it seems the low crossed near pondichery and currently over (based on that picture) Yelagiri – Tiruvannamalai and vellore area

  15. supersai,Even in cyclone we cannot say that the rainfall rate is uniform since these systems are made up of billions of individual thunderstorm where one area may have cloud tops reacher to greater height than rest of other area.The rainfall will be intense to those areas where the thunder clouds reach higher altitude.

  16. dhinakar,

    I am in Ambur and it is dry here. There were a few drizzles, but it all cleared up after 6.
    There was not much rain here either today.probably less than 5 mm

  17. Dear Dhinakar – understand Pondy hardly got any rain whole of today. if LP has crossed Pondy it should have rained better than Chennai?

  18. this does not happen often. Todays max 26.6 recorded at 9:26 pm. As the weather begins to clear we could have a max recorded even later than this.

  19. Friends our north east monsoon is over………its really frustrating to have not even a single heavy shower lasting for an hour………its really disappointing. IRI forecast have come true

  20. hmm noted: thanks all for the input! 15.30 UTC Insat shows the LLCC over border of Vellore – Tiruvannamalai – Dharmapuri and krishnagiri districts. That is why I posted that point!

    Any way if the sky clear over those respective areas where you all are: look above to zenith you can see Andromeda / M31 and east to it is pleiades / Kirthigai with 280 odd blue stars. Orion with its gorgeous oxygen rich nebulas would have risen above horizon. Enjoy the views!

  21. VORTEX OVER SOUTHEAST BAY CENTRED WITHIN HALF A DEGREE OF LAT 10.5N/88.5E (.) INTENSITY T-1.0(.) ASSOCIATED BROKEN LOW/MEDIUM CLOUDS WITH EMBEDED INTENSE TO VERY INTENSE CONVECTION OVER BAY BETWEEN LAT 9.0N TO 14.0N LONG 84.0E TO 89.0E (.) WIND SHEAR NEAR THE SYSTEM IS BETWEEN 05 KTS TO 10 KTS INDECATING INTENSIFICATION OF THE SYSTEM (.)
    Now this was update yesterday from IMD .At that time the system was clearly a depression according to JTWC.i thought the system would have failed in attaining over 25 knots (3 min sustained ) but in that message IMD has indicated the intensity as T-1.0..T-1.0 is clearly a depression by dovark estimation methods but still they did not upgrade it to a depression.This can be answered only by IMD.

  22. Thunderjove,T1.0 is a depression.There is no place for low pressure area in dovark technique simply because they are unorganised the starting of dovark tecnique is a depression 🙂
    Intensity winds

    T1.0-T1.5 DEPRESSION
    T2.0 DEEP DEPRESSION
    T2.5 TROPICAL STORM
    T3.0 TROPICAL STORT
    T3.5 SEVERE CYCLONE
    T4.0-6.5 VERY SEVERE
    t7.0 SUPER CYCLONE

  23. They dont have dovark estimation for low pressure because an unorganised storm cannot be estimated properly with dovark.I mean a thunderstorm will organise over llc only when it reaches depression.

  24. Chennai at 45mm according to imdaws.. i think with this chennai completes 122cm which is the normal rainfall according to imdchennai

  25. Rainfall from 8.30 am to 01.30 am

    Neyyoor – 106 mm
    Mailam (Tindivanam) – 72 mm
    Madhavaram – 48 mm
    Chennai (Nungambakkam) – 45 mm
    Chennai (Meeambakkam) – 41 mm
    Pondicherry – 25 mm
    Ennore Port – 25 mm
    Pechiparai – 07 mm
    Neyveli – 05 mm

    Tirumalla – 65 mm
    Kavali – 58 mm
    Nellore – 30 mm
    ISRO – 26 mm

    My dad told that it poured in Kuzhithurai and there was knee deep water in marthandam. seeeing neyoor getting 106mm my home town is also expected to cross 10cm tomorrow

  26. Today’s Paper THE HINDU
    CHENNAI, November 17, 2010 More showers expected in city

    The well-marked low pressure area located about 120 km southeast of Chennai is likely to dissipate on Wednesday, but not before bringing more showers to the city.

    On Tuesday, the observatories in Nungambakkam and Meenambakkam recorded a rainfall of 44.5 mm and 40 mm respectively during the 12-hour period ending 8.30 p.m. The rain, which inundated many areas, damaged roads and caused traffic pile-ups, also brought down the day temperature.

    According to officials of the Meteorological Department, the temperature was three degree Celsius below the average of 29 degree Celsius for this period of the year.

    Automated weather stations commissioned recently in the Ennore port and the Madhavaram campus of Tamil Nadu Veterinary and Animal Sciences University also recorded nearly 40 mm of rainfall each.

    Will move closer

    to coast

    The low pressure area would further move closer to the coast and bring showers over north Tamil Nadu and South Andhra Pradesh region on Wednesday.

    However, rainfall may not be as heavy as that on Tuesday.

    Combined storage level

    The city’s four reservoirs gained significantly following the showers in their catchment areas since Monday. Their combined storage level stood at 6,400 million cubic feet, against the capacity of 11,057 mcft.

  27. Rainfall from 8.30 am to 06.30 am by 90B Well MARKED LOW PRESSURE AREA (WML)

    Neyyoor – 106 mm
    Mailam (Tindivanam) – 73 mm
    Chennai (Nungambakkam) – 52 mm
    Madhavaram – 50 mm
    Tutiorin – 42 mm
    Chennai (Meeambakkam) – 41 mm
    Ennore Port – 30 mm
    Pondicherry – 29 mm
    Coonoor – 13 mm
    Ariyalur – 09 mm
    Pechiparai – 07 mm
    Neyveli – 07 mm

    Tirumalla – 65 mm
    Kavali – 58 mm
    Nellore – 39 mm
    ISRO – 27 mm

    Trivandrum – 50 mm

  28. Very very very heavy rain ere…neaier than JAL n wat this depression cud provide…!!! 🙂 ….poring stones…..will add morre to that 58mm

Please restrict Comments to Weather only

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s