La Nina likely to develop in coming months: UN weather body

Jul 06, 2010
The UN weather agency said Tuesday that El Nino, which wreaks havoc around the Pacific and east Africa, has dissipated, but La Nina -- another disruptive weather phenomenon, is likely to develop.

The UN weather agency said Tuesday that El Nino, which wreaks havoc around the Pacific and east Africa, has dissipated, but La Nina -- another disruptive weather phenomenon, is likely to develop.

"Following the rapid dissipation of in early May 2010, cool-neutral to weak La Nina conditions have developed in the tropical Pacific," said the World Meteorological Organisation in a statement.

"These conditions are more likely than not to strengthen into a basin-wide La Nina over the coming months."

The WMO said however, that "the timing and magnitude of such an event in 2010 are as yet uncertain."

is the opposition condition of El Nino. It is characterised by unusually cool ocean temperatures in the eastern equatorial Pacific.

In late 2008, it was blamed for icy conditions that claimed dozens of lives across Europe.

The weather phenomenon can also bring about strong in Indonesia, Malaysia and Australia, as well as in South America.

El Nino, meanwhile, is characterised by unusually warm ocean temperatures in the central and eastern equatorial Pacific.

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3 / 5 (1) Jul 06, 2010
Sigh! The Pacific moves from La Nina to El Nino and back again. It is an oscillation that has been going on for (at least) centuries. Now we have this headline: "The UN weather agency said Tuesday that El Nino, which wreaks havoc around the Pacific and east Africa, has dissipated, but La Nina -- another disruptive weather phenomenon, is likely to develop."

Wreaks havoc? Another disruptive weather phenomenon? With no end in sight? El Nino and La Nina don't do that. Other weather phenomena, like hurricanes and ice storms which can occur in El Nino, La Nina, or in between do the damage. This would be a science story if it wasn't for the political scare words. Recently the ENSO (El Nino Southern Oscillation) has been milder and switches from El Nino to La Nina (and back again) more common.

Extreme El Nino or La Nina conditions that cause prolonged droughts and floods need longer swings. So a short El Nino followed by a mild La Nina is good news.

not rated yet Jul 07, 2010
In this comment I don't see the warning for East Africa, where we have seen very severe drought from 2007 till October 2009 during La Nina conditions with people dying by starvation, followed by heavy rains in 2010 during El Nino. Please create a good warning system around the world. Rainfall patterns here follow the cycle, where global warming in future will bring the same as El Nino conditions.
not rated yet Jul 13, 2010
Normally La nina makes Fla dry but we have had a very wet yr so far. It also causes more hurricanes to hit us, hopefully that won't happen. But neither changes weather that much, justs moves it to s different place.

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