India received 957.6 mm rainfall in Just concluded South West Monsoon 2020, during the scheduled 4 month monsoon from June 1 to Sept 30, 2020. This is 8.74% above normal monsoon rainfall of 880.6 as per India Meteorological Department (IMD). This is considered ABOVE NORMAL rainfall, since rainfall is in the range 4-10% above Normal rainfall. This sounds good at national level, but the situation on ground could be very different, if we see the rainfall across the country.
It is noteworthy as per even IMD, monsoon has not yet withdrawn from most parts of the country. But IMD closes its monsoon rainfall account at 0830 hours on Sept 30, so all rainfall after that hour has to be counted in “Post Monsoon” rainfall book, even though the rainfall is very much part of monsoon as per IMD.
Continue reading “SW Monsoon 2020: District Wise Rainfall”
The latest update from IMD[i] on Very Severe Cyclonic Storm VAYU (issued at 0700 hrs on June 13, 2019) does not provide any specific risk of floods in any region, nor does it mention any possibility of persistent rainfall leading to risk of floods.
Another IMD update at 1200 hours on June 13, 2019[ii] says large parts of coastal Saurashtra may experience winds of 160 kmph starting June 13 afternoon, but there is no mention of risk of floods. It does give heavy rainfall warning: “Widespread rainfall with heavy to very heavy falls at few places and extremely heavy falls at isolated places in the coastal districts of Saurashtra” till 0830 hrs on June 15, 2019, in RED colour, the highest risk colour code used by IMD. Further this warning adds: “Flooding of escape routes. Minor disruption of railways, overhead power lines and signalling systems.” Among action suggested it lists: “Inundation of low lying areas along the above mentioned coastal districts due to heavy rainfall and storm surge… Evacuation from low lying areas of the above mentioned Districts, coastal Hutment dwellers, urban slum dwellers and people staying in unsafe house to safer places.” The Ministry of Earth Sciences also sends out these releases through PIB Press Notes as IMD functions under MoES. Continue reading “Will Cyclone VAYU bring floods in Saurashtra, Kutch and South Rajasthan?”
It’s a strange situation in Gujarat. While everyone is talking about unprecedented drought and the drought hit are suffering due to lack of water for irrigation and even water supply, the Sardar Sarovar Dam today (April 16) is at 119.14 m, and has 1095 Million Cubic Meters (MCM) in Live storage, in addition to about 3700 MCM of water in what is called dead storage. The Dam has received much more water this year compared to last year. SSP Water level on April 16, 2019 is up from 115.55 m, the lowest level it reached this water year[i] on March 3, 2019, since 2018 monsoon.
In fact, it was astonishing to find that the water level at SSP kept rising from March 3 (115.55 m) to April 8, 2019 (119.37 m), it has only marginally dropped since then. This was happening bang in the middle of summer! Continue reading “Gujarat has so much Narmada water this year: Why not share with drought hit & thirsty?”