Mumbai - 2009 Floods

Discussion in 'Mumbai & Navi Mumbai' started by JustAni, May 2, 2009.

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  1. JustAni

    JustAni Silver IL'ite

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    I received this article and I had to share it.

    <TABLE class=EC_EC_MsoNormalTable style="MARGIN-LEFT: 10.5pt" cellSpacing=0 cellPadding=0 border=0><TD style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; PADDING-TOP: 0in" vAlign=top>
    Floods - 2009 : Mumbai
    Floods in Mumbai are attributable to simultaneous occurrence of rainfall and high tides. If the rainfall is in excess of 200 mm in a day (24 hrs) the floods can occur anytime irrespective of the tides. However, if there is moderate rainfall but the tides are in excess of 4.50 meters at the same time, the city of Mumbai is sure to get flooded.
    Accordingly, heavy floods are anticipated on the following days in Mumbai, if there is excessive rainfall at the time of high tides, since the tides are extremely high on these days: -
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    Date
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    Day
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    Time
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    Height of Tide
    (Meters)
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    24 June 2009
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    Wednesday
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    1:41 PM
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    4.95
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    25 June 2009
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    Thursday
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    2:24 PM
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    4.97
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    23 July 2009
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    Thursday
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    1:23 PM
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    5.01
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    24 July 2009
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    Friday
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    2:03 PM
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    5.05
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    25 July 2009
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    Saturday
    <TD style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; WIDTH: 111.85pt; PADDING-TOP: 0in; BORDER-BOTTOM: windowtext 1pt solid; HEIGHT: 22.1pt" vAlign=top width=149>
    2:43 PM
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    4.94

    BMC has already planned to keep the schools closed on 24 July 2009 since the tide level is record high of last 100 years on this day.
    Mumbaikars are, therefore, requested to cooperate with the administration by restricting their movements and certainly not to take their vehicles out on the roads these days.

    Also, please advise your friends and relatives outside Mumbai not to plan a trip to Mumbai on these days.

    PS: I was not sure about where to post it, but since it mainly is for Mumbaites, I decided to post it here.
     
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  2. khushi4all

    khushi4all New IL'ite

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    yes.. I also read this in todays news paper... thanks for full deatils
     
  3. Prettina

    Prettina Gold IL'ite

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    Expected Flood in Mumbai 2009

    Hi All

    A valuable input from BMC is being circulated for your information.
    Floods - 2009 : Mumbai
    Floods in Mumbai are attributable to simultaneous occurrence of rainfall and high tides. If, the rainfall is in excess of 200 mm in a day (24 hrs), floods can occur anytime irrespective of tides. However, if there is moderate rainfall but the tide is in excess of 4.50 meters at the same time, the city of Mumbai is sure to get flooded.
    Accordingly, heavy floods are anticipated on the following days in Mumbai, if there is excessive rainfall at the time of high tides, since the tides are extremely high on these days: -
    Date Day Time Height of Tide (Meters)
    24 June 2009 Wednesday 1:41 PM 4.95
    25 June 2009 Thursday 2:24 PM 4.97

    23 July 2009 Thursday 1:23 PM 5.01
    24 July 2009 Friday 2:03 PM 5.05
    25 July 2009 Saturday 2:43 PM 4.94
    BMC has already planned to keep the schools closed on 24 July 2009 since the tide level is record high of last 100 years on this day.
    Mumbaites are, therefore, requested to cooperate with the administration by restricting their movements and certainly not to take their vehicles out on the roads these days.
    There are speculations about very high waves on 22 July 2009 due to solar eclipse.
    Public should, therefore, keep away from the beaches that day.
    Also, please advise your friends and relatives outside Mumbai not to plan a trip to Mumbai around these days.
     
  4. crossiants

    crossiants Senior IL'ite

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    Re: Expected Flood in Mumbai 2009

    With the promised flood modelling system still not in place four years after the 26/7 deluge, and the nullah-cleaning work far from completion, the Brihanmumbai Municipal Corporation has hit upon an ingenious solution to hide its shortcomings: it will issue an advisory asking all visitors to stay away from the city on or around July 24.

    As per the meteorological office five days are likely to be crucial this monsoon with very high tides, and if these are accompanied by heavy rainfall, the city can go under once again. July 24 in particular is expected to have tides as high as 5.05 meters (see box on page 4), the highest in a hundred years.

    With its drain rehauling project BRIMSTOWAD still two years away from completion, the BMC has deemed that the best way to deal with any impending crisis would be to keep people out of the equation. So while the traditional crisis management would be to ensure that city remains on track and people keep going, BMC wants people to stop in their tracks and keep the city going.

    “It’s a known fact that our system is not equipped to handle heavy rains and high tides together. We want the citizens to exercise cautions on these days so that there is no untoward incident,” said Additional Municipal Commissioner Kishore Gajbhiye, who holds the charge for disaster management in city. To that end Gajbhiye wants the city to stay indoors - “do not take out your vehicles on the road,” and for you to ask all your friends and relatives and acquaintances who may want to visit Mumbai during that period to “stay away.” Schools and colleges have also been alerted to declare a holiday on days when the high tide is in excess of 4.5 metres and it is also raining. “We have told them not to wait for official orders and take decision on the basis of rainfall in their areas,” said SS Shinde, Joint Municipal Commissioner (Disaster).

    BMC has admitted that it is not equipped to handle more than 25 mm of rainfall per hour coupled with high tide of more than 4.5 metres.

    This year, there will be 22 such days during the monsoon, of which at least five such days when the high tide will be in excess of 4.5 meters.

    A high tide of 4.48 metres and a rainfall of 994 mm had wreaked havoc in the city on July 26, 2005, bringing the city to a complete standstill for three days.

    Damages to the properties in city were estimated at over Rs 1000 crore and over 800 people died following floods and diseases.

    [​IMG]However, it is ironic that the civic administration will be issuing a precautionary press note asking outsiders to stay away.

    Last year Municipal Commissioner Jairaj Phatak had taken a strong objection to the US consulate advising its expatriates in city to take care during monsoon as manholes could be open during the monsoon. Phatak had then said that even they could issue similar warnings for the US cities.

    Incomplete work

    Doppler radar, that could be used for accurate prediction of rainfall, has been finally brought in but will be useful only next monsoon.

    Contour mapping of the city, that could help the BMC improve its drain system, will be ready only next year. Base map survey is over two years after it was envisaged, but the mapping is still months away.

    BMC claims to have 65 per cent nullah cleaning and de-silting in last two months and insists it will complete the job by May 24.

    The BRIMSOWAD (Brihanmumbai Storm Water Drain) project, that will augment the rainwater receding capacity from 25 mm to 50 mm, has been delayed by over 10 years and will take at least two more years before it is complete.
     
  5. gsaikripa

    gsaikripa Gold IL'ite

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    JUSTANI,
    I also read in the news paper... thanks for SHARING THE INFO.
     
  6. malspie

    malspie Platinum IL'ite

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    As nothing happened on any of these days except for creating panic and confusion in the minds of few mumbaikars, i am closing this thread as the matter of discussion has come to an end today = 25th july 2009 with safe and sound life in mumbai.
     
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