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According to scientists, the El Nino weather pattern, which can drive droughts and flooding, is underway in the tropical Pacific for the first time in 5 years.

Australia’s Bureau of Meteorology predicted that El Nino could be a “substantial” event.

The phenomenon arises from variations in ocean temperatures.

The El Nino is still in its early stages, but has the potential to cause extreme weather around the world.

US scientists announced earlier in April that El Nino had arrived, but it was described then as “weak”.El Nino 2015

Australian scientists said models suggested it could strengthen from September onwards, but it was too early to determine with confidence how strong it could be.


“This is a proper El Nino effect, it’s not a weak one,” David Jones, manager of climate monitoring and prediction at the Bureau of Meteorology, told reporters.

“You know, there’s always a little bit of doubt when it comes to intensity forecasts, but across the models as a whole we’d suggest that this will be quite a substantial El Nino event.”

El Nino had been expected during last year’s record-breaking temperatures, but failed to materialize.

The last El Nino in 2010 was linked with monsoons in Southeast Asia, droughts in southern Australia, the Philippines and Ecuador, blizzards in the United States, heatwaves in Brazil and extreme flooding in Mexico.

El Nino is a warming of the Pacific Ocean as part of a complex cycle linking atmosphere and ocean.

The event is known to disrupt weather patterns around the world, and can bring wetter winters to the southwest US and droughts to northern Australia.

The consequences of El Nino are much less clear for Europe.

Extreme weather events like El Nino will become more intense as global temperatures rise, researchers say.

California Department of Water Resoucers (DWR) has announced it may for the first time be unable to deliver water to local agencies, amid a worsening drought.

Two-thirds of state residents and 1 million acres (404,500 hectares) of farmland get part or all of their drinking and irrigation supplies from the agency.

A state-wide drought was declared earlier this month, as the largest reservoirs sank to record low levels.

Forecasters have warned 2014 could be California’s driest year on record.

The extreme conditions have already caused a wildfire that destroyed homes in the Los Angeles area.

California Department of Water Resoucers has announced it may for the first time be unable to deliver water to local agencies

California Department of Water Resoucers has announced it may for the first time be unable to deliver water to local agencies

Previous extremely dry years led to catastrophic wildfire seasons in California in 2003 and 2007.

It is the first time in the water agency’s history that it has predicted a so-called “zero allocation”, which will affect around 25 million people.

State governor Jerry Brown said the announcement was a “stark reminder that California’s drought is real”.

Jerry Brown urged residents to conserve water, suggesting they avoid flushing toilets unnecessarily and to turn off the tap while shaving.

Meanwhile a spokesman for the state’s farming federation called the news “a terrible blow”.

The water originates from the Sacramento-San Joaquin River Delta.

It is delivered to local agencies via a vast network of reservoirs, pipelines, aqueducts and pumping stations.

The 29 agencies that draw from the state’s water-delivery system have other sources, AP reports, although these too have been badly hit.

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