Sunday 22 May 2016

வெள்ள விபரம் இன்று 23-05-2016

குறிப்பு: சேதங்களின் ஆழத்தையும் அகலத்தையும் நீளத்தையும் கோலத்தையும் காட்சிகளாகப் பார்க்கையில் கீழ்க்காணும் அதிகார பூர்வ ``ஊடக`` புள்ளி விபரம் கிஞ்சிற்றும் சரியானதாக தோன்றவில்லை. ஒரே ஒரு மலைச்சரிவில் மட்டும் மூன்று கிராமங்கள் மூழ்கின.
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Death toll rises to 82; 118 missing, 145,000 in camps
May 22, 2016, 11:16 pm The Island

By Maheesha Mudugamuwa

The death toll from last week's natural disasters has risen to 82; it is expected to increase within the next few days as rescue operations continue to look for another 118 missing people, according to the Disaster Management Centre (DMC).

Meanwhile, 30 people have been confirmed dead due to the landslide in Aranayake and 114 others are missing. Another part of the same mountain at Aranayake in Kegalle District had crashed on Saturday, but there were no casualties as residents had been evacuated following the first landslides, an official said.

According to the DMC, 34,476 people have been affected by torrential rains widespread floods, landslides, mudslides and high winds in 22 districts during last week with 29 people injured. Over 476 houses have reportedly been destroyed and thousands of others damaged; many of them are still under water.

After a week of massive flooding triggered by heavy rains, deluged capital city Colombo, too, is slowly beginning to dry out.

The Irrigation Department yesterday announced that the water levels of the Kelani River were receding.

Irrigation Department Director of Hydrology P. Hettiarachchi said the water level measured at Nagalagam Street was 5 feet and 6 inches as at 9.00 am yesterday.

The department blamed illegal constructions on the river banks for heavy floods experienced in the Colombo region.

In the Colombo District, over 145,000 people are still at evacuation centres and most of them are from the worst hit areas of Kolonnawa, Thimbirigasyaya, Kaduwela, Seethawaka and Colombo, according to the statistics of the Disaster Management Centre (DMC). More than 147,000 people in Colombo District have been affected by floods.

Relief workers are still trying to gain access to thousands of marooned people in need of food and clean water. The logistics of delivering food and other aid to the displaced had become a critical issue, the DMC said. With roads impassable because of flooding, most efforts will continue to be carried out by boats.

Landslide warning issued to Ratnapura, Kegalle, Kalutara, Kandy, Kurunegala, Nuwara Eliya and Matale has been further extended by the National Building Research Organisation (NBRO) and people living in landslide prone areas have been evacuated to safe locations.

The Meteorology Department yesterday pointed out that the weather was now returning to normal.

Asked whether the Southwest Monsoon was expected this week, the department’s Research, Training and Development Director S. Premalal told The Island that it couldn’t predict the due date of monsoon and it could only give predictions for next 24 hours.

On the second week of this month, the Met Department predicted a one-week delay in Southwest-monsoon reaching Sri Lanka this year due to the strong El Nino conditions that affected the country last year. Duty Meteorologist at the Met Department Janaka Kumara stated that due date for the monsoon was May 25, but this year it would reach the country during the first week of June.

The Met Department yesterday predicted showers in the Western, North-Western, Southern, Central and Sabaragamuwa provinces and strong windy conditions over the country and in the sea areas would continue further particularly over the Southern, Eastern and Northern sea areas.

According to the Secretary to the Disaster Management Ministry, S. S Miyanawala, a task force of security forces personnel and those from the Civil Security Division will launch operations in the coming days to re-settle the displaced people. The government had released Rs. 92 million to District Secretaries and a further Rs. 55 million was on standby, he said.

Meanwhile, the international assistance for victims of floods and landslides started to arrive in the country on Saturday, following an urgent government appeal for foreign aid. India, Australia, Japan the United States, Nepal, China and Pakistan were among the donor countries as at yesterday.

As floods are beginning to recede,

The Health Ministry urged the public to be vigilant about diseases that could spread.

Director General of Health Services Dr. Palitha Mahipala said that with the flood waters receding there was a possibility of diseases such as diarrhoea, jaundice, typhoid, dengue and leptospirosis (rat fever) spreading through food and water.

He said awareness was important to prevent the spread of those diseases.

வெள்ளம் வரு முன் காத்தல்!


Tropical Storm to bring heavy rain and flooding to India and Sri Lanka this week
Eric Leister
By Eric Leister, Meteorologist
May 18, 2016; 8:01 AM ET

The first tropical cyclone of the season in the Bay of Bengal will track near the east coast of India this week, leading to additional flooding and widespread travel delays.

The depression, named BOB 01, currently has sustained winds of 75-92 km/h (45-55 mph). Gradual strengthening is expected over the next 24 hours.

As the cyclone spins near the coast of India, heavy rain will fall in northeastern Tamil Nadu and eastern Andhra Pradesh through at least Thursday.

Due to the close proximity to land, AccuWeather meteorologists think that there is a minimal threat for this low to become a significant tropical cyclone. However, the flood threat will not diminish.
Through Thursday, widespread rainfall of 100-200 mm (4-8 inches) of rain is expected across the region.

The heaviest rain will fall from Chennai to Machilipatnam. These areas could see locally 300 mm (12 inches) of rain.

In Chennai, where the worst flooding in a century brought the city to a stand still in December, the heaviest rain will fall through Wednesday before drier weather returns late in the week. Flooding this week is not expected to be as severe as December's event; however, travel delays are likely. Rainfall has already surpassed

Heavy rain will also fall across Kerala and western Sri Lanka where downpours will continue into Thursday. Drenching rain has caused flooding in these areas and additional downpours will elevate the threat of flooding and mudslides.

The 2015 monsoon brought below-average rainfall to Kerala, so this early-season rainfall is needed across the region, despite the dangers. May is typically when southern India and Sri Lanka have an increase in rain from tropical lows and cyclones, which tend to develop during the leading edge of the monsoon.

At least eleven people were killed in flooding and mudslides, while more than 130,000 have been forced out of their homes, according to The Associated Press.

The depression is expected to turn northeast late this week and into this weekend as the heaviest rain shifts from India into Bangladesh and Myanmar.

Meteorologist Adam Douty contributed content to this story.
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Cyclone Roanu leaves at least 21 people dead in Bangladesh
Kristina Pydynowski
By Kristina Pydynowski, Senior Meteorologist
May 21, 2016; 5:15 PM ET


After causing devastating flooding and mudslides in Sri Lanka earlier in the week, Cyclone Roanu turned deadly again this weekend as it slammed into Bangladesh.

At least 21 people are dead with many more injured in coastal Bangladesh, according to Reuters.
The deaths occurred amid house collapses, landslides and a storm surge that broke embankments at two spots in Chittagong.

Bangladeshi men pull a loaded cart through a waterlogged street after heavy rainfall in Dhaka, Bangladesh, Saturday, May 21, 2016. Mixing of rain water and toxicwaste from industries has turned water green. (AP Photo/ A.M. Ahad)

Officials told Reuters that some places were inundated by a storm surge that was 0.9 to 1.2 meters (3 to 4 feet) above normal tide height.

The first tropical cyclone of the season in the Bay of Bengal made landfall in Bangladesh, just north of Chittagong, on Saturday.

While interaction with land is causing Roanu to weaken, in terms of damaging winds, the threat for flooding will persist across northeastern India and northern and coastal Myanmar on Sunday.

In northeastern India, this includes Tripura, Mizoram, Manipur, Nagaland and eastern parts of Assam and Arunachal Pradesh.

Widespread rainfall totals of 150-300 mm (6-12 inches) are expected, raising significant concerns for life-threatening flooding and landslides. Some communities could be cut off by damaged or flood-ravaged roads and bridges.


"There will be localized amounts in excess of 300 mm (12 inches)," AccuWeather Meteorologist Rob Richards said. That is especially true in the higher terrain.

While the heaviest rain has departed, Bangladesh will face locally heavy thunderstorms into Sunday, which threatens to renew more flooding and interfere withcleanup operations.

Prior to the cyclone's arrival, Reuters reported that authorities in Bangladesh relocated about 500,000 people into 3,500 homes.

Roanu also turned deadly in Sri Lanka earlier in the week. The Associated Press reports that more than 70 people have been killed in landslides and flooding since Monday. Dozens are missing after mudslides devastated three villages in the central district of Kegalle.

While the rain spread from Sri Lanka, then up the eastern coast of India, intense heat worsened across western India as the circulation around Roanu pulled in dry and warmer air. On Thursday, Phalodi in Rajasthan set the all-time record high for India when temperatures soared to 51 C (123.8 F).

The extreme heat will ease for this weekend, but hot conditions will continue to put a strain on residents throughout western and northern India well into next week.

What are El Niño and La Niña?


What are El Niño and La Niña?

El Niño and La Niña are complex weather patterns resulting from variations in ocean temperatures in the Equatorial Pacific.

Warmer or colder than average ocean temperatures in one part of the world can influence weather around the globe. Watch this Ocean Today video to see how this works.

El Niño and La Niña are opposite phases of what is known as the El Niño-Southern Oscillation (ENSO) cycle. The ENSO cycle is a scientific term that describes the fluctuations in temperature between the ocean and atmosphere in the east-central Equatorial Pacific (approximately between the International Date Line and 120 degrees West).

La Niña is sometimes referred to as the cold phase of ENSO and El Niño as the warm phase of ENSO. These deviations from normal surface temperatures can have large-scale impacts not only on ocean processes, but also on global weather and climate.

El Niño and La Niña episodes typically last nine to 12 months, but some prolonged events may last for years. While their frequency can be quite irregular, El Niño and La Niña events occur on average every two to seven years. Typically, El Niño occurs more frequently than La Niña.

El Niño

El Niño means The Little Boy, or Christ Child in Spanish. El Niño was originally recognized by fishermen off the coast of South America in the 1600s, with the appearance of unusually warm water in the Pacific Ocean. The name was chosen based on the time of year (around December) during which these warm waters events tended to occur.

The term El Niño refers to the large-scale ocean-atmosphere climate interaction linked to a periodic warming in sea surface temperatures across the central and east-central Equatorial Pacific.

Typical El Niño effects are likely to develop over North America during the upcoming winter season. Those include warmer-than-average temperatures over western and central Canada, and over the western and northern United States. Wetter-than-average conditions are likely over portions of the U.S. Gulf Coast and Florida, while drier-than-average conditions can be expected in the Ohio Valley and the Pacific Northwest. The presence of El Niño can significantly influence weather patterns, ocean conditions, and marine fisheries across large portions of the globe for an extended period of time.

La Niña

La Niña means The Little Girl in Spanish. La Niña is also sometimes called El Viejo, anti-El Niño, or simply "a cold event."

La Niña episodes represent periods of below-average sea surface temperatures across the east-central Equatorial Pacific. Global climate La Niña impacts tend to be opposite those of El Niño impacts. In the tropics, ocean temperature variations in La Niña also tend to be opposite those of El Niño.

During a La Niña year, winter temperatures are warmer than normal in the Southeast and cooler than normal in the Northwest.

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