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Saturday, January 21, 2023 10:45:28 PM
Incredible photographs show California has ‘gone green’ after sustained heavy rainfall
""Torrents of water spill from Wyangala Dam in central west NSW, increasing flood risk
Nigeria floods: Braving the rising waters in Kogi state
"Why are Pakistan’s floods so extreme this year?
"Asia floods.... "
Related: Unusually strong drought/flood action kind of points to more climate turbulence due to turning up the thermostat.
https://investorshub.advfn.com/boards/read_msg.aspx?message_id=170452925
For the past month a series of atmospheric rivers have dumped 94 trillion litres of water on the Golden State.
William Gittins WillGitt
Update: January 18th, 2023 19:38 EST
MAXAR TECHNOLOGYvia REUTERS
The state of California is experiencing a series of atmospheric rivers .. https://www.reuters.com/business/environment/flooding-california-what-are-atmospheric-rivers-2023-01-16/ .. that have brought huge amounts of rain, and even snow, to the state in recent weeks. Weather trends in the Golden State are becoming more extreme and this period of intense rain comes while the region is technically still undergoing a period of drought.
Jay Lund, co-director of the Center for Watershed Sciences, told the New York Times .. https://www.nytimes.com/interactive/2023/01/18/climate/california-drought.html .. that simultaneous flooding and drought are “basically a byproduct of the high variability of California’s climate”.
Atmospheric rivers are streams of clouds in the sky that travel like rivers and can dump huge amounts of rain for a sustained period, increasing the risk of flooding and mudslides. These ‘rivers in the sky’ are fairly common and NASA estimates that there are typically about 11 on the planet at any one time.
Tweet
Often this phenomenon can bring much-needed precipitation in areas that may not have consistent rain or snow, but the more powerful atmospheric rivers can overwhelm local flood defences. In the sky they look like a line of wispy clouds, but the a single formation can carry up to 15 times as much water as the entire Mississippi River, the National Oceanic and Atmospheric Administration .. https://cpo.noaa.gov/News/News-Article/ArtMID/6226/ArticleID/2438/Is-Climate-Change-Increasing-Weather-Whiplash .. estimates.
Farmers suffer as fluctuating weather both fries and floods
Throughout the state, California has seen almost daily deluges of rain for the past month. It is thought that more than 94 trillion litres of water has fallen on the state since Christmas Eve, and that is causing concern for the region’s many farmers.
California has been reeling from an extremely hot and dry summer that caused droughts and hurt farmers’ harvest significantly.
Tweet
You may think that the recent spell of heavy rain would have helped, but rain that falls after a period of drought is less than ideal. The ground in some areas was so dry that the rainwater was unable to soak beyond the upper layer, simply running off into rivers and, eventually, the ocean.
The state has invested huge amounts into water management in recent decades, with huge reservoirs built to ensure a consistent supply of water. But these large-scale infrastructure efforts struggle to adapt to the rapidly changing California weather and are easily overwhelmed by intense rainfall.
Technically the state has been in a period of drought for the past three years and water shortages are becoming increasingly common. Agriculture is responsible for around 80% of California’s waters usage .. https://www.cbc.ca/news/world/as-california-faces-droughts-and-floods-together-farmers-look-to-new-water-technologies-1.6715257 .. , and farmers will struggle to access the required water if weather trends continue as they are.
https://en.as.com/latest_news/new-photographs-show-california-has-gone-green-after-sustained-heavy-rainfall-n/
Again, likely now forever - Related: Unusually strong drought/flood action kind of points to more climate turbulence due to turning up the thermostat.
https://investorshub.advfn.com/boards/read_msg.aspx?message_id=170452925
Australia could swing from three years of La Niña to hot and dry El Niño in 2023
Bureau of Meteorology climate models indicate sea-surface temperatures in the Pacific may exceed El Niño thresholds by June
Scientists say there is a prospect Australia will move from three years of La Niña weather conditions to a hotter, drier El Niño this year. Photograph: Brook Mitchell/Getty Images
Peter Hannam
Wed 4 Jan 2023 01.00 AEDT
Last modified on Thu 5 Jan 2023 17.39 AEDT
Australia could swing from three years of above-average rainfall to one of the hottest, driest El Niño periods on record, as models show an increasing likelihood the climate driver may form in the Pacific in 2023.
The latest climate models used by the Bureau of Meteorology – which will update its forecasts on Wednesday – indicate sea-surface temperatures may exceed El Niño thresholds in the key region of the equatorial Pacific by June.
Scientists caution that models may be less accurate ahead of the “autumn predictability gap .. https://www.theguardian.com/australia-news/2022/mar/18/when-will-eastern-australias-wet-weather-end-and-will-we-get-a-la-nina-three-peat ” in April – the time of year when the Pacific enters a reset mode, allowing small influences to have big effects. But they suggest that after three consecutive La Niña years, the ocean is primed for a switch.
“The Pacific must be quite charged with heat ready to have an El Niño,” Cai Wenju, a senior CSIRO climate scientist, told Guardian Australia. “I wouldn’t be surprised if we had an El Niño by the end of the year.”
Agus Santoso, a senior researcher at the University of New South Wales’s Climate Change Research Centre, agreed. “Definitely an El Niño is a prospect [for 2023]”, he said. “You could have a weak El Niño. A strong El Niño is a possibility but neutral conditions are also a possibility.”
People living on the east coast of Australia will be glad to see the end of the La Niña .. https://www.theguardian.com/environment/la-nina , which sees strong easterly winds cause the build-up of warm waters north and east of the country, supporting the formation of rain clouds and storms.
Australia notched three straight years of above-average national rainfall to the end of 2022. Extensive flooding in some regions of NSW and South Australia .. https://www.theguardian.com/australia-news/2023/jan/01/river-murray-fish-kill-concerns-grow-as-flood-waters-peak-in-south-australia .. remain ongoing, and Indonesia has also been affected by flooding.
In an El Niño the trade winds stall or even reverse, increasing the risk of severe heatwaves, droughts and fires.
Australia’s record-breaking weather in 2022: a very wet and sometimes very hot year
Read more > https://www.theguardian.com/australia-news/2022/dec/30/australias-ninth-wettest-and-20th-hottest-year-looking-back-at-the-weather-in-2022
The US National Oceanic and Atmospheric Administration, which uses different thresholds than the BoM to determine La Niña and El Niño events, last month .. https://coralreefwatch.noaa.gov/satellite/analyses_guidance/enso_current_conditions.php .. rated odds of an El Niño forming by August-October as a two-in-three chance.
The current La Niña had been of “moderate” strength compared with the 2010-11 event and “is on the way towards decay” by autumn, Santoso said.
One factor in favour of an end to the string of La Niñas is that there are no recorded instances of four in a row, he said. While a La Niña event can be followed by an El Niño, the reverse combination is more common.
Both Santoso and Cai caution that having conditions tilting towards an El Niño does not guarantee one will develop.
They point to 2014, when models indicated an El Niño was very possible but one failed to develop. However, the following summer of 2015-16 produced one of the strongest El Niños on record.
La Niña years tend to be relatively cool at a global scale – and particularly so in Australia – as the Pacific absorbs relatively more warmth from the atmosphere.
Even so, 2022 was on track to be either the fifth or sixth hottest on record, the World Meteorological Organization has said .. https://library.wmo.int/doc_num.php?explnum_id=11359 .
Australians are feeling the heat of climate change. For the fossil fuel industry it’s still business as usual
Bill Hare Read more > https://www.theguardian.com/commentisfree/2022/dec/28/australian-government-must-take-its-foot-off-the-gas-to-ensure-real-emission-reductions
Should an El Niño develop, 2023 could turn out to be one of the hottest years in history, building as it would on the background rise of greenhouse gases and global heating.
“When the next El Niño comes, we are going to have much, much worse conditions in terms of heatwaves,” Cai said.
A typical El Niño might add about 0.1C to global mean temperatures but he warned the next one might top that “because there’s so much heat in the equatorial Pacific”.
The intensity and frequency of La Niña and El Niño were likely to increase in a hotter world, Santoso said. The processes that trigger such events were reinforced by the warming of the sea-surface temperatures, enhancing the coupling between atmosphere and ocean.
“We don’t know whether [the next dry spell] is going to be a long one or not,” Santoso said.
https://www.theguardian.com/australia-news/2023/jan/04/australia-could-swing-from-three-years-of-la-nina-to-hot-and-dry-el-nino-in-2023
""Torrents of water spill from Wyangala Dam in central west NSW, increasing flood risk
Nigeria floods: Braving the rising waters in Kogi state
"Why are Pakistan’s floods so extreme this year?
"Asia floods.... "
Related: Unusually strong drought/flood action kind of points to more climate turbulence due to turning up the thermostat.
https://investorshub.advfn.com/boards/read_msg.aspx?message_id=170452925
For the past month a series of atmospheric rivers have dumped 94 trillion litres of water on the Golden State.
William Gittins WillGitt
Update: January 18th, 2023 19:38 EST
MAXAR TECHNOLOGYvia REUTERS
The state of California is experiencing a series of atmospheric rivers .. https://www.reuters.com/business/environment/flooding-california-what-are-atmospheric-rivers-2023-01-16/ .. that have brought huge amounts of rain, and even snow, to the state in recent weeks. Weather trends in the Golden State are becoming more extreme and this period of intense rain comes while the region is technically still undergoing a period of drought.
Jay Lund, co-director of the Center for Watershed Sciences, told the New York Times .. https://www.nytimes.com/interactive/2023/01/18/climate/california-drought.html .. that simultaneous flooding and drought are “basically a byproduct of the high variability of California’s climate”.
Atmospheric rivers are streams of clouds in the sky that travel like rivers and can dump huge amounts of rain for a sustained period, increasing the risk of flooding and mudslides. These ‘rivers in the sky’ are fairly common and NASA estimates that there are typically about 11 on the planet at any one time.
Tweet
Often this phenomenon can bring much-needed precipitation in areas that may not have consistent rain or snow, but the more powerful atmospheric rivers can overwhelm local flood defences. In the sky they look like a line of wispy clouds, but the a single formation can carry up to 15 times as much water as the entire Mississippi River, the National Oceanic and Atmospheric Administration .. https://cpo.noaa.gov/News/News-Article/ArtMID/6226/ArticleID/2438/Is-Climate-Change-Increasing-Weather-Whiplash .. estimates.
Farmers suffer as fluctuating weather both fries and floods
Throughout the state, California has seen almost daily deluges of rain for the past month. It is thought that more than 94 trillion litres of water has fallen on the state since Christmas Eve, and that is causing concern for the region’s many farmers.
California has been reeling from an extremely hot and dry summer that caused droughts and hurt farmers’ harvest significantly.
Tweet
You may think that the recent spell of heavy rain would have helped, but rain that falls after a period of drought is less than ideal. The ground in some areas was so dry that the rainwater was unable to soak beyond the upper layer, simply running off into rivers and, eventually, the ocean.
The state has invested huge amounts into water management in recent decades, with huge reservoirs built to ensure a consistent supply of water. But these large-scale infrastructure efforts struggle to adapt to the rapidly changing California weather and are easily overwhelmed by intense rainfall.
Technically the state has been in a period of drought for the past three years and water shortages are becoming increasingly common. Agriculture is responsible for around 80% of California’s waters usage .. https://www.cbc.ca/news/world/as-california-faces-droughts-and-floods-together-farmers-look-to-new-water-technologies-1.6715257 .. , and farmers will struggle to access the required water if weather trends continue as they are.
https://en.as.com/latest_news/new-photographs-show-california-has-gone-green-after-sustained-heavy-rainfall-n/
Again, likely now forever - Related: Unusually strong drought/flood action kind of points to more climate turbulence due to turning up the thermostat.
https://investorshub.advfn.com/boards/read_msg.aspx?message_id=170452925
Australia could swing from three years of La Niña to hot and dry El Niño in 2023
Bureau of Meteorology climate models indicate sea-surface temperatures in the Pacific may exceed El Niño thresholds by June
Scientists say there is a prospect Australia will move from three years of La Niña weather conditions to a hotter, drier El Niño this year. Photograph: Brook Mitchell/Getty Images
Peter Hannam
Wed 4 Jan 2023 01.00 AEDT
Last modified on Thu 5 Jan 2023 17.39 AEDT
Australia could swing from three years of above-average rainfall to one of the hottest, driest El Niño periods on record, as models show an increasing likelihood the climate driver may form in the Pacific in 2023.
The latest climate models used by the Bureau of Meteorology – which will update its forecasts on Wednesday – indicate sea-surface temperatures may exceed El Niño thresholds in the key region of the equatorial Pacific by June.
Scientists caution that models may be less accurate ahead of the “autumn predictability gap .. https://www.theguardian.com/australia-news/2022/mar/18/when-will-eastern-australias-wet-weather-end-and-will-we-get-a-la-nina-three-peat ” in April – the time of year when the Pacific enters a reset mode, allowing small influences to have big effects. But they suggest that after three consecutive La Niña years, the ocean is primed for a switch.
“The Pacific must be quite charged with heat ready to have an El Niño,” Cai Wenju, a senior CSIRO climate scientist, told Guardian Australia. “I wouldn’t be surprised if we had an El Niño by the end of the year.”
Agus Santoso, a senior researcher at the University of New South Wales’s Climate Change Research Centre, agreed. “Definitely an El Niño is a prospect [for 2023]”, he said. “You could have a weak El Niño. A strong El Niño is a possibility but neutral conditions are also a possibility.”
People living on the east coast of Australia will be glad to see the end of the La Niña .. https://www.theguardian.com/environment/la-nina , which sees strong easterly winds cause the build-up of warm waters north and east of the country, supporting the formation of rain clouds and storms.
Australia notched three straight years of above-average national rainfall to the end of 2022. Extensive flooding in some regions of NSW and South Australia .. https://www.theguardian.com/australia-news/2023/jan/01/river-murray-fish-kill-concerns-grow-as-flood-waters-peak-in-south-australia .. remain ongoing, and Indonesia has also been affected by flooding.
In an El Niño the trade winds stall or even reverse, increasing the risk of severe heatwaves, droughts and fires.
Australia’s record-breaking weather in 2022: a very wet and sometimes very hot year
Read more > https://www.theguardian.com/australia-news/2022/dec/30/australias-ninth-wettest-and-20th-hottest-year-looking-back-at-the-weather-in-2022
The US National Oceanic and Atmospheric Administration, which uses different thresholds than the BoM to determine La Niña and El Niño events, last month .. https://coralreefwatch.noaa.gov/satellite/analyses_guidance/enso_current_conditions.php .. rated odds of an El Niño forming by August-October as a two-in-three chance.
The current La Niña had been of “moderate” strength compared with the 2010-11 event and “is on the way towards decay” by autumn, Santoso said.
One factor in favour of an end to the string of La Niñas is that there are no recorded instances of four in a row, he said. While a La Niña event can be followed by an El Niño, the reverse combination is more common.
Both Santoso and Cai caution that having conditions tilting towards an El Niño does not guarantee one will develop.
They point to 2014, when models indicated an El Niño was very possible but one failed to develop. However, the following summer of 2015-16 produced one of the strongest El Niños on record.
La Niña years tend to be relatively cool at a global scale – and particularly so in Australia – as the Pacific absorbs relatively more warmth from the atmosphere.
Even so, 2022 was on track to be either the fifth or sixth hottest on record, the World Meteorological Organization has said .. https://library.wmo.int/doc_num.php?explnum_id=11359 .
Australians are feeling the heat of climate change. For the fossil fuel industry it’s still business as usual
Bill Hare Read more > https://www.theguardian.com/commentisfree/2022/dec/28/australian-government-must-take-its-foot-off-the-gas-to-ensure-real-emission-reductions
Should an El Niño develop, 2023 could turn out to be one of the hottest years in history, building as it would on the background rise of greenhouse gases and global heating.
“When the next El Niño comes, we are going to have much, much worse conditions in terms of heatwaves,” Cai said.
A typical El Niño might add about 0.1C to global mean temperatures but he warned the next one might top that “because there’s so much heat in the equatorial Pacific”.
The intensity and frequency of La Niña and El Niño were likely to increase in a hotter world, Santoso said. The processes that trigger such events were reinforced by the warming of the sea-surface temperatures, enhancing the coupling between atmosphere and ocean.
“We don’t know whether [the next dry spell] is going to be a long one or not,” Santoso said.
https://www.theguardian.com/australia-news/2023/jan/04/australia-could-swing-from-three-years-of-la-nina-to-hot-and-dry-el-nino-in-2023
It was Plato who said, “He, O men, is the wisest, who like Socrates, knows that his wisdom is in truth worth nothing”
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