18 Tornadoes Reported in 5 States Monday
Extreme weather spawned 18 tornadoes across five states Monday, USA Today reported. Tornadoes were reported in Texas, Oklahoma, Kansas, Missouri and Arizona, but were not as dangerous as forecasters had initially feared, the Associated Press reported.
The National Weather Service's Storm Prediction Center (SPC) had raised the probability of tornadoes in northwest Texas and central Oklahoma from 35 to 45 percent Monday afternoon. The last time chances were that high was April 14, 2012, when 122 tornadoes killed six people in Kansas and Oklahoma, according to USA Today.
"I'd certainly label this the 'nightmare scenario,'" meteorologist Mike Smith tweeted of Monday's forecast, as USA Today reported.
The latest forecast from SPC has increased the tornado probabilities from 30% to 45% from northwest Texas into central Oklahoma.— NWS SPC (@NWSSPC) May 20, 2019
The last time a 45% tornado outlook was issued was during the Tornado Outbreak in Oklahoma and Kansas on 14 April 2012.https://t.co/DFvb0sQlo3 pic.twitter.com/lTfcEkv5hk
All of Oklahoma City was included in the "high-risk" area, and most of the largest school systems in the center of the state closed Monday, including the University of Oklahoma campus. It appeared to be the first time such a mass closure had taken place in central Oklahoma ahead of an extreme weather event, the Weather Underground reported.
"This event should result in a significant threat to life and property," the SPC said.
Luckily, the tornadoes touched down in remote areas and no injuries were reported, according to the Associated Press.
One tornado struck Mangum, Oklahoma, damaging some roofs and destroying the high school barn, though the animals survived.
"The pigs are walking around wondering what happened to their house," Greer County emergency management director Glynadee Edwards told the Associated Press.
Another tornado damaged a home and destroyed a barn near Lucien, Oklahoma.
The storm system produced golf-ball sized hail, and raised the risk of flooding, especially in parts of Oklahoma, Kansas and Missouri, AccuWeather reported. The risk of tornadoes and flooding continued into Tuesday, but was less severe, according to USA Today.
The outbreak comes during a stormy month for the South-Central U.S. At least 50 tornadoes were reported in the central and southern plains last week and into the weekend, according to AccuWeather. And more storms are expected in the region later this month.
"It looks like there is no end in sight to this very active pattern of severe weather into the end of May," AccuWeather extreme meteorologist Reed Timmer said, as USA Today reported.
The relationship between tornado outbreaks and climate change is not yet fully understood.
The science of how climate change is affecting tornadoes is still evolving, but there's reason to believe major outbreak days (like today could be) are getting worse.— Eric Holthaus (@EricHolthaus) May 20, 2019
It's certain that extreme rainfall events are becoming more intense as the world warms.https://t.co/w35cWMzq2P
A 2016 study co-authored by Columbia University professor Michael Tippett found that tornado outbreaks (systems that spawn multiple tornadoes in an area within hours or days) were becoming more extreme. An outbreak with a 20 percent chance of occurring in a given year would have produced 40 tornadoes in 1965, but 80 in 2015. However, the researchers found that the cause of those outbreaks was the opposite of what they would have expected if climate change were to blame, as Climate Central explained:
Why some storms produce tornadoes but others don't still isn't fully understood, but two components are essential: an unstable atmosphere, which promotes the convection that drives severe storms, and wind shear, or changes in wind speed and direction at different levels of the atmosphere, which helps create a tornado's rotation.
Climate models have suggested that instability should increase with warming, because of the excess water vapor a warmer atmosphere can hold, but that wind shear should decrease. The increase in instability was seen to win out, though, suggesting it could be behind the tornado trends.
But when Tippett and his team looked at trends in particular atmospheric measures of these two factors, "we found the opposite," he said: Wind shear was behind the trends in extreme outbreaks.
National Severe Storms Laboratory senior scientist Harold Brooks, who was not involved with the study, said more research needed to be done to determine if climate change were not responsible, or if scientists simply did not yet fully understand how it impacts storm systems. If climate change is to blame, then the increase in the severity of tornado outbreaks will continue. However, if the cause is related to a natural cycle, the trend could eventually reverse, Climate Central reported.
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A herdsman in the Chinese autonomous region of Inner Mongolia was diagnosed with the bubonic plague Sunday, The New York Times reported.
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By Matt Kasson, Brian Lovett and Carolee Bull
Home gardening is having a boom year across the U.S. Whether they're growing their own food in response to pandemic shortages or just looking for a diversion, numerous aspiring gardeners have constructed their first raised beds, and seeds are flying off suppliers' shelves. Now that gardens are largely planted, much of the work for the next several months revolves around keeping them healthy.
Start With Prevention<p>Just as preventive steps like maintaining a balanced diet help keep humans healthy, home growers can take many actions to help their gardens thrive.</p><p>One key step is assessing soil fertility – the ability of soil to sustain plant growth – which can vary widely depending on your location and soil type. Low soil fertility limits food production and predisposes plants to disease and pests. University extension <a href="https://soiltesting.wvu.edu/" target="_blank">soil testing labs</a> can help evaluate the quality of garden soil and identify nutrient deficiencies and acidic soils, often at no charge.</p>
Using weed barrier landscape cloth for planting rows and mulching between rows is an effective way to suppress weeds. Matt Kasson, CC BY-ND
Diagnosing Problems<p>Common plant pathogens include <a href="https://www.apsnet.org/edcenter/disandpath/viral/introduction/Pages/PlantViruses.aspx" target="_blank">viruses</a>, <a href="https://www.apsnet.org/edcenter/disandpath/prokaryote/intro/Pages/Bacteria.aspx" target="_blank">bacteria</a>, <a href="https://www.apsnet.org/edcenter/disandpath/nematode/intro/Pages/IntroNematodes.aspx" target="_blank">nematodes</a>, <a href="https://www.apsnet.org/edcenter/disandpath/oomycete/introduction/Pages/IntroOomycetes.aspx#:%7E:text=The%20oomycetes%2C%20also%20known%20as,foliar%20blights%20and%20downy%20mildews." target="_blank">oomycetes</a> and <a href="https://www.apsnet.org/edcenter/disandpath/fungalasco/intro/Pages/IntroFungi.aspx" target="_blank">fungi</a>. All of these microorganisms, especially at an early stage of infection, are too small to see. But when they proliferate, they cause changes in plants that we can recognize.</p><p>Unlike insects, which move around on six legs or on wings through the air, pathogens can move unseen and unchecked from leaf to leaf on the wind, through the soil or in droplets of water. Some microbes have even formed intimate relationships with insects and use them as vehicles to move from plant to plant, which makes these pathogens even more challenging to manage. Unfortunately, by the time some pathogens make their presence known, the damage is already done.</p><p>We recently conducted a <a href="https://twitter.com/kasson_wvu/status/1265989041725624323" target="_blank">Twitter poll</a> of gardeners nationwide to find out which culprits plagued their gardens. People named <a href="https://ento.psu.edu/extension/factsheets/aphids" target="_blank">aphids</a>, <a href="https://ento.psu.edu/extension/factsheets/squash-vine-borer" target="_blank">squash vine borers</a>, <a href="https://ento.psu.edu/extension/factsheets/squash-bug" target="_blank">squash bugs</a> and <a href="https://ento.psu.edu/extension/factsheets/flea-beetle" target="_blank">flea beetles</a> as the most problematic insect pests. Their most troublesome pathogens included <a href="https://extension.wvu.edu/lawn-gardening-pests/plant-disease/fruit-vegetable-diseases/powdery-mildew" target="_blank">powdery mildew</a>, <a href="https://plantpath.ifas.ufl.edu/rsol/Trainingmodules/BWTomato_Module.html" target="_blank">tomato bacterial wilt</a> and <a href="https://extension.wvu.edu/lawn-gardening-pests/plant-disease/fruit-vegetable-diseases/downy-mildew" target="_blank">cucurbit downy mildew</a>.</p><p>To manage such perennial challenges, the first step is to spend time closely looking at your plants. Do you notice any insects consistently hanging around, or molds colonizing leaves or other plant parts? How about symptoms such as blight, stunting, or leaves that are yellowing, browning or wilting?</p>
This white fungal growth is an early sign of powdery mildew on a leaf of susceptible summer squash. Matt Kasson, CC BY-ND
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By Emma Charlton
The effects of climate change may more far-reaching than you think.
Hotter temperatures have been linked to a rise in energy poverty, with more people struggling to meet their energy bills from their household income, according to a new study published on ScienceDirect by researchers from Italy's Ca' Foscari University.
Value of air conditioning imports in selected OECD countries. ScienceDirect
The ‘Golden Thread’<p>The <a href="https://www.endenergypoverty.org/reports" target="_blank">Global Commission to End Energy Poverty</a> calls access to energy the "golden thread" that weaves together economic growth, human development, and environmental sustainability. And one of the <a href="https://www.weforum.org/agenda/archive/sdg-07-affordable-and-clean-energy" target="_blank">United Nations' Sustainable Development Goals</a> is to ensure access to affordable, reliable, sustainable and modern energy for all by 2030.</p><p>Sustainability also has a large role to play in the future of energy and failing to embed green policies in COVID-19 stimulus packages and underinvesting in green infrastructure are current risks, according to the <a href="http://www3.weforum.org/docs/WEF_COVID_19_Risks_Outlook_Special_Edition_Pages.pdf" target="_blank">World Economic Forum</a>.</p><p>In its vision for a 'Great Reset' – building a better world after the pandemic – the Forum and the IMF jointly backed the <a href="https://www.weforum.org/agenda/2020/06/end-fossil-fuel-subsidies-economy-imf-georgieva-great-reset-climate/" target="_blank">transition to a green economy</a> and called for an end to fossil fuel subsidies.</p>
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Scores of people remained stranded in southern Japan on Sunday after heavy rain the day before caused deep flooding and mudslides that left at least 34 people confirmed or presumed dead.
Care Home Inundated<p>Altogether 16 residents at an elderly care home in Kuma Village are presumed dead after the facility was flooded by water and mud.</p><p>Fifty-one other residents have been rescued by boats and taken to hospitals for treatment, officials said.</p><p>Eighteen other people elsewhere have been confirmed dead, while more than a dozen others were still missing as of Sunday afternoon.</p><p>The Fire and Disaster Management Agency said many others were still waiting to be rescued from other inundated areas.</p><p>Hitoyoshi City was also badly affected by flooding, as rains in the prefecture exceeded 100 millimeters (4 inches) per hour at their height.</p>
More Rain Forecast<p>The disaster in the Kumamoto prefecture on Kyushu island is the worst natural catastrophe since Typhoon Hagibis in October last year, which cost the lives of 90 people.</p><p>Although residents in Kumamoto prefecture were advised to evacuate their homes following the downpours on Friday evening into Saturday, many people chose not to leave for fear of contracting the coronavirus.</p><p>Officials say, however, that measures are in place at shelters to prevent the transmission of the disease.</p><p>More rain is predicted in the region, and the Japan Meteorological Agency has warned of the danger of further mudslides.</p>
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