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‘Fani’ aims for Odisha, AP

April 27, 2019 by Climate portal editor Leave a Comment

Update: Cyclone Fani will make landfall on the coast on 3 May. Depending on whether the Extremely Severe Cyclonic Storm (IMD’s classification) gains more speed over the Bay of Bengal, Fani could cross the coast as early as 1000 hours on 3 May.

Based on the weather charts released by IMD and corroborated by the climatological forecasts produced by the World Meteorological Organisation’s members, Fani will cross the coast between Kakinada, East Godavari district, Andhra Pradesh, and Puri, district Puri, Odisha, which is about 60 km south of Bhubaneshwar.

Previously: The India Meteorological Department has issued a forcast for and warning about a cyclonic storm which as of today (27 Apri) is a low pressure area lying over the East Equatorial Indian Ocean and adjoining south-east Bay of Bengal.

It is already intensifying into a depression over the East Equatorial Indian Ocean and adjoining central parts of the southern Bay of Bengal and will further intensify into a cyclonic storm. Thereafter the storm is forecast to move north-westwards along and off the east coast of Sri Lanka near the north Tamil Nadu coast on 30 April.

The IMD has already issued warning to fishermen about strong winds. Wind speed reaching 45-55 kmph gusting to 65 kmph over East Equatorial Indian Ocean and adjoining central parts of the southern Bay of Bengal are already being recorded. Gale wind speeds will be reached of 65-75 kmph gusting to 85 kmph over the south-west Bay of Bengal and adjoining Equatorial Indian Ocean by 27 April.

Thereafter 80-90 kmph gusting to 100 kmph over the south-west Bay of Bengal and adjoining Equatorial Indian Ocean and along and off the Sri Lankan coast on 28 April and 90-100 kmph gusting to 115 kmph over the south-west Bay of Bengal, along and off the Sri Lankan coast and off the Tamil Nadu and Puducherry coast on 29 April. The sea condition will be very rough in all these areas.

There will be light to moderate rainfall at many places with heavy rainfalls at isolated places in north coastal Tamil Nadu on 30 April and 1 May and over Kerala on 29 and 30 April. Light to moderate rainfall at many places with heavy rainfall at isolated places is also very likely over south coastal Andhra  Pradesh on these dates.

Forecast updates are available here.

Filed Under: Latest Tagged With: 2019, Andhra Pradesh, Bay of Bengal, cyclone, India, Indian Ocean, monsoon, Sri Lanka, Tamil Nadu

Dry districts alert, May 2017

May 1, 2017 by Climate portal editor Leave a Comment

A large number of districts in south, peninsular, central and eastern India are experiencing dry and semi-arid conditions which will continue, and likely become worse, until the 2017 monsoon becomes active.

This list of districts is based on our re-working of the maps released weekly by the India Meteorological Department (Hydromet section in Pune), which show the district-level standardised precipitation index (or SPI). While this is not a drought or dryness index, the weekly SPI serves as a very reliable indicator of where water stress is occurring, and is therefore an invaluable aid for relief planning.

In this series of four maps, re-coloured by us to better display differences in SPI between regions and over time, the change in south India stands out.

Each map displays the SPI as a cumulative reading of the four weeks until the date given. That is why the change for any district – from ‘moderately dry’ to ‘severely dry’ for example – needs to be seen as having an immediate bearing on the available water, crop health and condition of forest and pasture for that district.

Based on the readings for 26 April 2017 this is the list of districts that need urgent attention.

Maharashtra: Gadchiroli, Chandrapur, Yavatmal, Kolhapur
Chhattisgarh (Raipur division): Gariaband, Raipur, Baloda Bazar
Odisha: Rayagada, Kandhamal, Angul, Cuttack
West Bengal: 24 Parganas North
Manipur: Chandel
Andhra Pradesh: Vizianagaram, Kurnool
Telengana (old district boundaries): Nizamabad, Karimnagar, Medak, Warangal, Khammam, Mahbubnagar
Karnataka: Bidar, Raichur, Bijapur, Bagalkot, Koppal, Gadag, Dharwad, Bellary, Shimoga
Tamil Nadu: Cuddalore, Nagapattinam, Tiruvarur, Thanjavur, Pudukkottai, Ramanathapuram, Toothukudi, Kaniyakumari, Theni, Coimbatore
Kerala: Malappuram, Thrissur, Ernakulam, Kottayam, Alapuzha

Filed Under: Latest Tagged With: 2017, Andhra Pradesh, arid, Bharat, district, drought, India, Karnataka, Kerala, Maharashtra, Odisha, summer, Tamil Nadu, Telengana, water

South India’s water emergency

April 11, 2017 by Climate portal editor Leave a Comment

ICP_res_20170410_topBy the end of the first week of April 2017, the most current and reliable indicator for stored water in south India showed how dire the situation has become. And the South-West monsoon is still about eight weeks away. The weekly data sheet on the stored water quantities in the 91 major reservoirs of India, which is maintained and released by the Central Water Commission, has in the 6 April 2017 release shown the scale of the water emergency.

Of the 31 reservoirs in the southern region (Kerala, Tamil Nadu, Karnataka, Telengana and Andhra Pradesh) that are among the major reservoirs of India, 18 have stored water that is less than 15% of their full capacities.

These 18 are (ranked by least water stored):
Nagarjuna Sagar, APTG, 0.00%
Sholayar, TN, 0.00%
Almatti, KAR, 0.03%
Kabini, KAR, 2.25%
Vanivilas Sagar, KAR, 2.74%
Tungabhadra, KAR, 3.21%
Vaigai, TN, 4.07%
Parambikulam, TN, 5.00%
Malaprabha (Renuka), KAR, 5.56%
Hemavathy, KAR, 5.72%
Mettur (Stanley), TN, 6.72%
Periyar, KER, 6.94%
Bhadra, KAR, 9.02%
Lower Bhawani, TN, 9.09%
Srisailam, APTG, 9.44%
Krishnaraja Sagar, KAR, 11.44%
Malapmuzha, KER, 11.61%
Aliyar, TN, 14.74%
(TN is Tamil Nadu, KER is Kerala, KAR is Karnataka, APTG is Andhra Pradesh and Telengana)

ICP_south_water_20170411

Using a municipal average of about 400 litres per day per household that is a typical designed supply (not delivered, for that’s another tale), how much water does this allow for the 60.51 million households of the southern region until the monsoon begins?

Tamil Nadu has 18.46 million households, Kerala has 7.83 million, Karnataka has 13.3 million, Andhra Pradesh and Telengana have 20.92 million. These together need 24.2 billion litres a day or, in reservoir storage terms, 0.024 billion cubic metres (bcm) a day. The 31 major reservoirs of southern India together have, as of 6 April 2017, 6.583 bcm. From this quantity is taken water for industrial, agricultural and commercial use.

These uses are given priority or water stocks are secured (never mind allocation and metering) especially by industry. Normally, what remains for household use is about a third of the available stock. This leaves, as on 6 April, about 2.19 bcm for household use, which will suffice the 60.51 million households of south India for about 90 days – but only provided, and this is the stringent, non-negotiable condition that must be enforced, all households especially urban keep within the 400 litres per household per day limit.

The situation does not improve even if the monsoon arrives on time and the first weeks deliver normal rainfall. It is only by July 5-15 that reservoir water stocks begin trending upwards. This is where the 90-day restricted supply can take south India to. But only if immediate and strict rationing is imposed, as it should have been, to allow for climatological variance, by 1 March 2017.

Filed Under: Latest Tagged With: Andhra Pradesh, Bharat, drought, India, Karnataka, Kerala, reservoir, Tamil Nadu, Telengana, water, water shortage, water supply

Celsius surprises in 57 cities

May 21, 2015 by Climate portal editor Leave a Comment

ICP_57_cities_temp_top

The middle of February is when the chill begins to abate. The middle of May is when the monsoon is longed for. In our towns, district headquarters and cities, that climatic journey of 90 days is one of a steady rise in the reading of the temperature gauge, from the low 20s to the mid 30s.

This large panel of 90 days of daily average temperatures shows, in 57 ways, the effects of the rains that almost every district has experienced during the last two months. For each city, the curved line is the long period ‘normal’ for these 90 days, based on daily averages. Also for each city, the second line which swings above and below the ‘normal’ is the one that describes the changes in its daily average from February to May 2015.

[You can download (1.52MB) a full resolution image of the panel here.]

Where this second line crosses to rise above the normal, the intervening space is red, where it dips below is coloured blue. The patches of red or blue are what tell us about the effects of a lingering winter, or rains that have been called ‘unseasonal’ but which we think signal a shift in the monsoon patterns.

Amongst the readings there is to be found some general similarities and also some individual peculiarities. Overall, there are more blue patches than there are red ones, and that describes how most of the cities in this panel have escaped (till this point) the typical heat of April and May. The second noteworthy general finding is that these blue patches occur more frequently in the second half of the 90 days, and so are the result of the rainy spells experienced from March to early May.

Hisar (in Haryana) has remained under the normal temperature line for many more days than above or near it. So have Gorakhpur (Uttar Pradesh), Pendra (Chhattisgarh), Ranchi (Jharkhand), Nagpur (Maharashtra) and Jharsuguda (Odisha).

On the other hand in peninsular and south India, the below ‘normal’ daily average temperature readings are to be found in the latter half of the time period, coinciding with the frequent wet spells. This we can see in Kakinada, Kurnool and Anantapur (Andhra Pradesh), Bangalore, Gadag and Mangalore (Karnataka), Chennai, Cuddalore and Tiruchirapalli (Tamil Nadu) and Thiruvananthapuram (Kerala). [A zip file with the charts for all 57 cities is available here (1.2MB).]

What pattern will the next 30 days worth of temperature readings follow? In four weeks we will update this bird’s eye view of city temperatures, by which time monsoon 2015 should continue to give us more blues than reds. [Temperature time series plots are courtesy the NOAA Center for Weather and Climate Prediction.]

Filed Under: Current, Monsoon 2015, Reports & Comment Tagged With: Anantapur, Andhra Pradesh, Bangalore, Chennai, Chhattisgarh, city, climate, Cuddalore, Gadag, Gorakhpur, India, Jharkhand, Jharsuguda, Kakinada, Karnataka, Kerala, Kurnool, Maharashtra, Mangalore, monsoon, Nagpur, Odisha, Ranchi, Tamil Nadu, temperature, Thiruvananthapuram, Tiruchirapalli, town, urban, Uttar Pradesh

India braces for cyclone Hudhud

October 11, 2014 by Climate portal editor Leave a Comment

Insat-3D’s view of the path inland of Hudhud at 1730 IST (5:30pm IST) on 12 October. The cyclonic storm is now moving north-northwest through Odisha into Jharkhand, Chhattisgarh and south Bihar. Image: IMD

Insat-3D’s view of the path inland of Hudhud at 1730 IST (5:30pm IST) on 12 October. The cyclonic storm is now moving north-northwest through Odisha into Jharkhand, Chhattisgarh and south Bihar. Image: IMD

Oct 14 – The Armed Forces have further stepped up their rescue and relief operations in the coastal areas of Andhra Pradesh and Odisha. The Press Information Bureau has reported that eight ‘composite’ Army teams have been deployed in Vishakhapatnam and another eight teams in Srikakulam.

Prime Minister Narendra Modi examining pictures of destruction caused by Cyclone HudHud, at Vizag Collectorate, on 14 October 2014. Image: PIB

Prime Minister Narendra Modi and Andhra Pradesh chief minister N Chandrababu Naidu examining pictures of destruction caused by Cyclone HudHud, at Vizag Collectorate, on 14 October 2014. Image: PIB

The Indian Air Force has deployed C-17, C130J, AN-32, IL-76, Mi-17 and Chetak aircraft and helicopters for rescue and relief work. A total of 120 tonnes of essential supplies have been airlifted to Visakhapatnam from Vijayawada and Rajamundry, while essential supplies have also been marshalled at the Naval airfield at Visakhapatnam. Until the evening of 14 October, 36 sorties were made towards relief operations. Two road clearance teams of Army have been employed in the north of Srikakulum district and the road between Achutapuram and Vizag has been cleared by the armed forces teams.

An aerial survey was conducted by C-130J of the IAF and P-8I of the Navy with satellite imagery having been used to assess the impact of cyclone Hudhud while coastal reconnaissance is being done by the Coast Guard. Additional Engineer Units of the Army are being flown to Visakhapatnam.

Oct 12 – The IMD has issued its evening alert on cyclone Hudhud. The 1700 IST (5:00pm IST) alert contains a heavy rainfall warning and a wind warning.

Heavy rainfall warning: Rainfall at most places with heavy (6.5-12.4 cm) to very heavy falls (12.5-24.4 cm) at a few places and isolated extremely heavy falls (>24.5 cm) would occur over West and East Godavari, Visakhapatnam, Vijayanagaram and Srikakulam districts of north Andhra Pradesh and Ganjam, Gajapati, Koraput, Rayagada, Nabarangpur, Malkangiri, Kalahandi, Phulbani districts of south Odisha during next 24 hrs. Rainfall would occur at most places with heavy to very heavy rainfall at isolated places over Krishna, Guntur and Prakasham districts of Andhra Pradesh and north Odisha during the same period. Rainfall at most places with heavy falls at a few places would occur over south Chattisgarh, adjoining Telangana and isolated heavy to very heavy falls over north Chattisgarh, east Madhya Pradesh, Jharkhand and Bihar.

Cyclone Hudhud will degrade into a severe cyclonic storm, then a cyclonic storm and by 13 October morning into a deep depression. Until 14 October it will continue to pose a danger with heavy rainfall and high winds. This IMD table explains why.

Cyclone Hudhud will degrade into a severe cyclonic storm, then a cyclonic storm and by 13 October morning into a deep depression. Until 14 October it will continue to pose a danger with heavy rainfall and high winds. This IMD table explains why.

Press Information Bureau distributes very useful railway helpline numbers.

Press Information Bureau distributes very useful railway helpline numbers.

Wind warning: Current gale wind speed reaching 130-140 kmph gusting to 150 kmph would decrease gradually to 100-110 kmph gusting to 120 kmph during next 3 hours and to 80-90 kmph during subsequent 6 hours over East Godavari, Visakhapatnam, Vizianagaram and Srikakulam districts of North Andhra Pradesh. Wind speed of 80-90 kmph gusting to 100 kmph would prevail over Koraput, Malkangiri, Nabarangpur and Rayagada districts during next 6 hrs and 50 to 60 kmph during subsequent 12 hrs. Squally wind speed reaching upto 55-65 kmph gusting to 75 kmph would also prevail along and off West Godavari and Krishna districts of Andhra Pradesh, Ganjam and Gajapati districts of Odisha, south Chattisgarh and adjoining districts of north Telangana during next 12 hours.

Andhra Pradesh helpline numbers here. (Thanks to Ankur Singh ‏@ankurzzzz)

Andhra Pradesh helpline numbers here. (Thanks to Ankur Singh ‏@ankurzzzz)

Odisha district control room phone numbers have been distributed thanks to eodisha.org.

They are: Mayurbhanj 06792 252759, Jajpur 06728 222648, Gajapati 06815 222943, Dhenkanal 06762 221376, Khurda 06755 220002, Keonjhar 06766 255437, Cuttack 0671 2507842, Ganjam 06811 263978, Puri 06752 223237, Kendrapara 06727 232803, Jagatsinghpur 06724 220368, Balasore 06782 26267, Bhadrak 06784 251881.

There are reports on twitter that the leading edge of cyclone Hudhud crossed the coast at around 1030 IST (0500 UTC). The reported maximum wind speed is just above 200 kmph which means the destructive force threatens structures too.

Strangely calm right Now. Everything outside is eerily quiet. We’re IN THE EYE of the storm now #Cyclone #Hudhud #Vizag #Visakhapatnam

— Deepa Ghosh (@deepaghosh2007) October 12, 2014

This tweet means the western ‘wall’ of the cyclone has now crossed completely – it has taken just under two hours. The eastern ‘wall’ crossing will now begin.

Cyclone #Hudhud hits the coast of Andhra Pradesh at Kailashgiri in Visakhapatnam. Live updates http://t.co/FQU6kZvVSR pic.twitter.com/YGzZYwIUpg

— Sudhan Rajagopal BJP (@BJPsudhanRSS) October 12, 2014

Cyclone #Hudhud makes landfall at Bheemunipatanam, slightly north of Vizag. #TVnews

— Saswat K Swain (@saswat28) October 12, 2014

Roofs of houses fly away like leaves, huge trees falling everywhere #Hudhud creating maximum destruction.

— Imran Baig (@imranbaig) October 12, 2014

Navy officials warn that there will be a lull in the storm at around 11.30 am, but the storm will again intensify after that for a few hours.
Zee News has a list of cancelled and curtailed trains.
At least 400,000 people have been evacuated from the coastal areas of Andhra Pradesh and Odisha states as authorities aimed for zero casualties.

Oct 11 -Where is Cyclone Hudhud and how fast is it moving towards land? The India Meteorological Department has said in its most recent alert – 1430/2:30pm on 11 October – that “the Very Severe Cyclonic Storm” is now about 260 kilometres south-east of Visakhapatnam and 350 km south-south-east of Gopalpur. IMD expects the cyclone to travel north-west and cross the coast of north Andhra Pradesh, near Visakhapatnam, by mid-morning on 12 October 2014.

The projected path of the cyclone and its outer rainbands, which in the case of Hudhud are around 80 km thick measured from the eye. Image: GDACS

The projected path of the cyclone and its outer rainbands, which in the case of Hudhud are around 80 km thick measured from the eye. Image: GDACS

Around 100,000 people have been evacuated in Andhra Pradesh to high-rise buildings, shelters and relief centres, with plans to move a total of 300,000 to safety. Authorities in Odisha said they were monitoring the situation and would, if necessary, move 300,000 people most at risk.

The evacuation effort was comparable in scale to the one that preceded Cyclone Phailin exactly a year ago, and which was credited with minimising the fatalities to 53. When a huge storm hit the same area 15 years ago, 10,000 people died.

Authorities have been stocking cyclone shelters with dry rations, water purification tablets and generators. They have opened up 24-hour emergency control rooms and dispatched satellite phones to officials in charge of vulnerable districts.

IMD’s table of wind speeds at the surface (sea level) brought by Hudhud. Note the exceptionally strong winds between 2330/11:30pm on 11 October and 1130/11:30am on 12 October.

IMD’s table of wind speeds at the surface (sea level) brought by Hudhud. Note the exceptionally strong winds between 2330/11:30pm on 11 October and 1130/11:30am on 12 October.

The AP government has cancelled leaves of employees and has asked everyone to remain on duty on the weekend.  In Vizag, where the cyclone is expected to make landfall, the administration has opened 175 shelters and moved close to 40,000 people from the coastal villages. In Srikakulam, people of 250 villages in 11 mandals which may be affected have been evacuated.

Vishakhapatnam, Bhimunipatnam, Chittivalasa and Konada are expected to face storm surges of over 1 metre. Source: GDACS

Vishakhapatnam, Bhimunipatnam, Chittivalasa and Konada are expected to face storm surges of over 1 metre. Source: GDACS

While human casualties are not expected due to the massive evacuation, power and telecommunication lines will be uprooted leading to widespread disruption. A warning has been issued that flooding and uprooted trees will cut off escape routes, national and state highways and traffic is being regulated to ensure that no one is caught in the flash floods caused by heavy rains.

Officials said that National Disaster Response Force teams have been strategically placed along the coast to be deployed wherever they are required. Railways has cancelled all trains passing through the three districts which are likely to be affected.

The IMD has issued a “Heavy Rainfall Warning” which has said that driven by the cyclonic winds, rainfall at most places along the AP and Odisha coast will be heavy (6.5–12.4cm) to very heavy (12.5–24.4 cm). These places include West and East Godavari, Visakhapatnam, Vijayanagaram and Srikakulam districts of north Andhra Pradesh and Ganjam, Gajapati, Koraput, Rayagada, Nabarangpur, Malkangiri, Kalahandi, Phulbani districts of south Odisha.

This panel of four images shows the wind patterns of the cyclone at different altitudes. Top left is at 1,000 millibars (mb) of atmospheric pressure which is around sea level, top right is at 850 mb which is at around 1,500 metres high, bottom left is at 700 mb which is at around 3,500 metres, and bottom right is at 500 mb which is at around 5,000 metres. The direction of the greenish lines shows the winds rushing into the cyclonic centre. The visualisations have been collected from the ‘earth.nullschool.net’, which visually processes global weather conditions forecast by supercomputers and updated every three hours.

This panel of four images shows the wind patterns of the cyclone at different altitudes. Top left is at 1,000 millibars (mb) of atmospheric pressure which is around sea level, top right is at 850 mb which is at around 1,500 metres high, bottom left is at 700 mb which is at around 3,500 metres, and bottom right is at 500 mb which is at around 5,000 metres. The direction of the greenish lines shows the winds rushing into the cyclonic centre. The visualisations have been collected from the ‘earth.nullschool.net’, which visually processes global weather conditions forecast by supercomputers and updated every three hours.

The India Meteorological Department said on the evening of 10 October that the “Very Severe Cyclonic Storm” is centered near latitude 15.0ºN and longitude 86.8ºE about 470 km east-southeast of Visakhapatnam and 520 km south-southeast of Gopalpur. This was the fix IMD had on the centre of the cyclone at 1430 IST on 10 October 2014.

Here are the salient points from news reports released during the afternoon of 10 October:

Cyclone Hudhud will cross the north Andhra Pradesh coast on October 12 and is expected to make landfall close to Visakhapatnam, according to the Cyclone Warning Centre (CWC) at Visakhapatnam. “It is forecast that Hudhud, which is already a severe cyclonic storm, will intensify into a very severe cyclonic storm in next 12 hours. Hudhud is likely to make landfall on October 12 close to Visakhapatnam,” said IMD’s Hyderabad centre.

Cyclone Hudhud has moved closer to the coast of Odisha and eight districts of the state are likely to be affected by it. The districts likely to be affected by the cyclone are Ganjam, Gajapati, Rayagada, Koraput, Malkangiri, Nabarangpur, Kalahandi and Kandhamal. All these districts have been provided with satellite phones for emergency and constant vigil was being maintained on the rivers like Bansadhara, Rusikulya and Nagabali as heavy rain is expected in southern districts.

With cyclone Hudhud fast approaching the states of Odisha, Andhra Pradesh and Telangana, Union Home Minister Rajnath Singh today spoke to the chief ministers of the three states on the steps being taken to deal with the situation. Odisha Chief Minister Naveen Patnaik sought satellite phones which could be used in case high-speed winds disturbed the telecommunication system.

According to the India Meteorological Department, the wind speeds of cyclone Hudhud will be less than what the east coast experienced during Phailin in October 2013. The wind speed during cyclone Phailin was nearly 210 kmph, which made the cyclone the second-strongest ever to hit India’s coastal region. The country had witnessed its severest cyclone in Odisha in 1999.

Frequent updates and advisories can also be found at GDACS – the Global Disaster Alert and Coordination System (a cooperation framework under the UN umbrella). GDACS provides real-time access to web-based disaster information systems and related coordination tools.

Cities that will directly be affected by cyclone Hudhud are Vishakhapatnam in Andhra Pradesh, Jagdalpur in Chhattisgarh, Vizianagaram in AP, Bhogapuram in AP, and Anakapalle in AP.

Filed Under: Current, Latest, Monsoon 2014 Tagged With: Andhra Pradesh, Bay of Bengal, Chandrababu Naidu, cyclone, cyclonic storm, disaster, emergency, evacuation, flood, Gajapati, Ganjam, Godavari, Hudhud, IMD, Kalahandi, Koraput, Malkangiri, Modi, Nabarangpur, Odisha, Phailin, Phulbani, Rayagada, relief, Srikakulam, storm, Vijayanagaram, Visakhapatnam

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