GLG
Well-Known Member
It's never a good sign for Salmon when this happens.
El Niño set to return before end of the year
October 10, 2018
LONDON (Reuters) - El Niño conditions are developing across the Pacific Ocean, with meteorologists now putting the probability of a full event developing by the end of the year at almost 75 percent.
Sea surface temperatures are warming counter-seasonally across much of the equatorial Pacific and trade winds are slackening, both common precursors of an El Niño episode.
The principal impacts of El Niño (and its opposite weather pattern La Niña) are felt in Southeast Asia, Australia and South America, where it can have a major effect on temperatures and rainfall, with a big effect on agriculture.
The impacts on North America are more complicated and variable, but it has an effect on both total heating demand and its regional distribution in the winter months.
El Niño conditions alter the position of the polar jet stream, typically bringing warmer temperatures to Canada and the northern United States during the northern hemisphere winter from December to February.
But El Niño also results in a stronger and more persistent Pacific jet stream into the southwestern United States, bringing more rain, snow, storms and cooler temperatures to California and other southern states.
As the ocean warms, government forecasters in the United States and Australia estimate there is now triple the normal chance of El Niño occurring this winter, though it is likely to be a relatively weak episode.
https://www.reuters.com/article/us-...urn-before-end-of-the-year-kemp-idUSKCN1MK28C
El Niño set to return before end of the year
October 10, 2018
LONDON (Reuters) - El Niño conditions are developing across the Pacific Ocean, with meteorologists now putting the probability of a full event developing by the end of the year at almost 75 percent.
Sea surface temperatures are warming counter-seasonally across much of the equatorial Pacific and trade winds are slackening, both common precursors of an El Niño episode.
The principal impacts of El Niño (and its opposite weather pattern La Niña) are felt in Southeast Asia, Australia and South America, where it can have a major effect on temperatures and rainfall, with a big effect on agriculture.
The impacts on North America are more complicated and variable, but it has an effect on both total heating demand and its regional distribution in the winter months.
El Niño conditions alter the position of the polar jet stream, typically bringing warmer temperatures to Canada and the northern United States during the northern hemisphere winter from December to February.
But El Niño also results in a stronger and more persistent Pacific jet stream into the southwestern United States, bringing more rain, snow, storms and cooler temperatures to California and other southern states.
As the ocean warms, government forecasters in the United States and Australia estimate there is now triple the normal chance of El Niño occurring this winter, though it is likely to be a relatively weak episode.
https://www.reuters.com/article/us-...urn-before-end-of-the-year-kemp-idUSKCN1MK28C