Tag Archives: tornadoes

Where Tornadoes Are a Known Danger, the One That Hits Home Still Stuns

A series of deadly tornadoes have ravaged large areas of the South this week, killing at least 35 people and leaving residents stunned and weary. See the article here –  Where Tornadoes Are a Known Danger, the One That Hits Home Still Stuns ; ;Related ArticlesA Grim Toll as Storms Sweep South and MidwestDot Earth Blog: Dome it! Schools Can Affordably Survive TornadoesYears After Chernobyl, Building Progress ;

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Where Tornadoes Are a Known Danger, the One That Hits Home Still Stuns

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PHOTOS: 2013′s Most Terrifying Weather Disasters

Many may be harbingers of a changing climate. The year 2013 has seen no less than 39 weather-related disasters costing $1 billion or more in damage. That’s far more than last year, when there were only 27, according to an analysis of disaster statistics by the Weather Underground’s Jeff Masters—and very near the all time high of 40, in 2010. In other words, even as most of us lived in relative comfort this year, we shouldn’t forget that nature dealt out quite a lot of misery and suffering in the world around us. So here’s a rundown of some of the most extreme weather events of 2013, from around the world: 1. BRAZIL’S WORST DROUGHT IN 50 YEARS Dead farm animals in Pernambuco, northeastern Brazil. Rodrigo Lobo/ZUMA From January through May, northeastern Brazil experienced a devastating drought. According to the agricultural secretary of the Brazilian state of Bahia, it was the worst in 50 years. All told, the damage toll was an estimated $8 billion. The drought was so powerful that some experts speculated that the dryness influenced the North Atlantic hurricane season, which was much quieter than expected. 2. AUSTRALIA’S HOTTEST SUMMER EVER A bushfire in Tasmania on Jan. 4, 2013. ToniFish/Wikimedia Commons The continent had never seen a summer like it. January 2013 was Australia’s hottest month since recordkeeping began. Sydney set a new record temperature of 114.4 degrees Fahrenheit on Jan. 18, and that’s just one in a very, very long list of heat records. A study subsequently published in the journal Geophysical Research Letters found that global warming had increased the odds of this type of extreme heat wave. 3. OKLAHOMA’S TERRIFYING TORNADOES Moore, Okla., on May 23. Zhang Yongxing/ZUMA The US always has tornadoes, but this year they were particularly devastating. The May 20 Moore, Okla., tornado was the third most destructive in history. It was an EF-5 on the Enhanced Fujita scale, the highest classification. Twenty-four people were killed, and the total damage was on the order of $2 billion, due to the fact that the tornado stayed on the ground for a long time in a highly populated area. And the Moore tornado was followed shortly afterward by the largest tornado on record on May 31: The El Reno tornado, an EF-5 whose winds reached 295 miles per hour, and whose maximum width was 2.6 miles. (Whenever there are devastating tornadoes, some ask whether climate change could be responsible. The answer is that at this point, top experts just don’t know what effect global warming may be having on tornadoes.) 4. CENTRAL EUROPE’S HISTORIC FLOODING Budapest, Hungary, on June 9. Attila Volgyi/ZUMA In late May and early June, many Central European countries—including Germany, Switzerland, Austria, and the Czech Republic—experienced record flooding as the Danube, Vltava, and Rhine rivers overtopped their banks. The result was $22 billion in damage, representing the fifth costliest non-US weather disaster on record. It was the worst European flooding “since the Middle Ages,” according to weather expert Jeff Masters. As with so many extremes of late, the flooding was tied to “blocked weather” as a result of a stuck jet stream pattern, which led to extreme rains. Some climate experts think global warming is producing more of these blocking patterns and the resultant extremes. 5. HEAT RECORDS FALL FROM SHANGHAI TO SLOVENIA Pedestrians in Shanghai cover themselves from the sun on Aug. 6. Imaginechina/ZUMA In many parts of the northern hemisphere, the summer of 2013 brought record heat. Alaska tied its all-time heat record of 98 degrees Fahrenheit during a July heat wave. As for Death Valley, Calif., 129.2 degrees Fahrenheit on June 30 just might be Earth’s overall heat record (see discussion here). Austria, Slovenia, and Shanghai also all set new heat records. On Aug. 7, Shanghai’s temperature hit 105.4 degrees. 6. NORTH INDIA’S DEADLY MONSOON FLOODS Flooding in New Delhi. Partha Sarkar/Xinhua/ZUMA According to data from the reinsurance industry intermediary firm Aon Benfield, the deadliest weather event officially recorded so far in 2013 occurred in June in northern India and Nepal, where severe flooding claimed 6,500 lives. The disaster was caused by extreme monsoon rains over the Indian state of Uttarakhand, whose capital, Dehradun, received more than 14 inches of rain in a 24-hour period, a new record. Monsoon floods are often deadly, but this single event may be the deadliest ever. 7. CALIFORNIA’S MASSIVE RIM FIRE A firefighter in Groveland, Calif., battles the Rim Fire. Elias Funez/Modesto Bee/ZUMA After starting in late August, the enormous Yosemite Rim fire eventually grew to encompass more than 250,000 acres, gaining it a ranking of the third largest in California history. To put that in perspective, the Rim Fire grew almost as large as all the other 2013 California fires combined (thus far). It was not fully contained until October 26, more than two months after it formed. (Notably, seven of the 10 largest California fires have occurred since the year 2000.) 8. COLORADO’S THOUSAND YEAR FLOOD Country Road 34 near Platteville, Colo., on Sept. 14. Dejan Smaic/ZUMA The local office of the National Weather Service just went ahead and called it “biblical.” NOAA climate scientist Martin Hoerling added that “this single event has now made the calendar year (2013) the single wettest year on record for Boulder.” The rains that fell in Colorado in September were so intense, and the flooding so damaging, that in some areas, it was the kind of disaster that will only happen once in a thousand years. (The total damage was estimated at $2 billion.) Was climate change involved? For extreme rainfall events, global warming is already contributing a small percentage of additional rainfall through increased atmospheric water vapor. What’s more, the Colorado Floods were also tied to yet another suspicious atmospheric blocking pattern. 9. THE BAY OF BENGAL’S MASSIVE CYCLONE PHAILIN Cyclone Phailin on Oct. 10. NASA The deadliest cyclones in the world, historically, have occurred in the Bay of Bengal. So when a storm here named Phailin reached Category-5 strength in October, fears were great that it could rival the deadly 1999 Odisha Cyclone, which killed as many as 10,000 people in India. Fortunately, evacuation planning and preparedness measures prevented a comparable disaster when Phailin made landfall in India at near full strength. Due to data problems, it is hard to say whether Phailin was the strongest storm ever observed in the Bay of Bengal, but it was certainly close. 10. SUPER TYPHOON HAIYAN DEVASTATES THE PHILIPPINES The devastated town of Tanauan, the Philippines. Lucas Oleniuk/The Toronto Star/ZUMA Super Typhoon Haiyan in the Northwestern Pacific didn’t just reach Category-5 strength: With winds of 195 miles per hour, it may be the strongest hurricane by wind speed ever reliably observed. We’ve all seen the ensuing images of disaster: The death toll is over 6,000, and there are still more than 1,000 people missing. In the end, Haiyan may be 2013′s deadliest weather event as well. Read article here:   PHOTOS: 2013′s Most Terrifying Weather Disasters ; ; ;

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PHOTOS: 2013′s Most Terrifying Weather Disasters

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A Closer Look at Tornadoes in a Human-Heated Climate

Tornado scientists clarify what is and isn’t known about how tornadoes may be influenced by global warming. Source:  A Closer Look at Tornadoes in a Human-Heated Climate ; ;Related ArticlesAn Update on Risks of Abrupt Jolts from Global WarmingThe Politics of Runaway Trains and Other Avoidable CalamitiesDot Earth Blog: An Update on Risks of Abrupt Jolts from Global Warming ;

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A Closer Look at Tornadoes in a Human-Heated Climate

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The Future of Storms

Scientists disagree over whether climate change is altering hurricanes. It is impossible, when looking at one storm, to know whether global warming had an impact, but researchers see a trend. Link:  The Future of Storms ; ;Related ArticlesJapan Backs Off From Emissions Targets, Citing Fukushima DisasterDot Earth Blog: Room for Agreement on Next Steps for Nuclear Power?Developing a Fax Machine to Copy Life on Mars ;

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The Future of Storms

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Dot Earth Blog: Assessing the Role of Global Warming in Extreme Weather of 2012

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Warhammer 40,000 Altar of War: Space Marines II – Games Workshop

Space Marines are masters of shock tactics and swift assaults, often winning wars before their foes even know they are under attack. The Altar of War missions presents a series of scenarios specifically tailored to the Space Marines and their unique ways of waging war, from lightning orbital drops to brutal assaults against enemy strong points.

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Codex: Space Marines (Enhanced Edition) – Games Workshop

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Space Marines Digital Collection – Games Workshop

The Space Marines are the superhuman warriors of humanity, fighting across the galaxy to hold back the Imperium’s endless tide of enemies. Few can stand against these peerless soldiers, and even a single company is often enough to change the fate of a world forever. This digital collection gathers together the brand new Codex: Space Marines, How to Paint Cit […]

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How to Paint Citadel Miniatures: Vanguard Veterans – Games Workshop

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How to Paint Citadel Miniatures: Sternguard Veterans – Games Workshop

Sternguard veterans deploy wherever the battleline is most vulnerable, facing down the most impossible odds with icy calm and precise bursts of bolter fire. They are the very image of what every Space Marine aspires to become, and the pinnacle of any Chapter’s fighting force. About this Guide: In this guide demonstrates how to paint Space Marine Sterngu […]

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Cat Sense – John Bradshaw

Cats have been popular household pets for thousands of years, and their numbers only continue to rise. Today there are three cats for every dog on the planet, and yet cats remain more mysterious, even to their most adoring owners. In Cat Sense , renowned anthrozoologist John Bradshaw takes us further into the mind of the domestic cat than ever before, using […]

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Codex: Space Marines (eBook Edition) – Games Workshop

The Space Marines are the chosen warriors of the Emperor, and the greatest fighting force of the Imperium. Each Space Marine is a genetically enhanced super soldier, easily a match for a dozen lesser men, armed with the some of the deadliest weapons in the galaxy and encased in a formidable power armour. This Codex explores the formations and Chapters of the […]

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How to Paint Citadel Miniatures: Centurions – Games Workshop

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Dot Earth Blog: Assessing the Role of Global Warming in Extreme Weather of 2012

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A Tornado Chaser Falls Doing Extreme Science

A potent tornado kills a storm-chasing scientist, two colleagues and seven others. Originally posted here –  A Tornado Chaser Falls Doing Extreme Science ; ;Related ArticlesDot Earth Blog: Experts Foresee No Detectable Health Impact from Fukushima RadiationExperts Foresee No Detectable Health Impact from Fukushima RadiationDot Earth Blog: Take Back the Asphalt ;

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A Tornado Chaser Falls Doing Extreme Science

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Old Batteries Crossing Borders Leave a Toxic Lead Trail

A proposal for cleaning up lead contamination from small car-battery recyclers in poor countries. Link to article:   Old Batteries Crossing Borders Leave a Toxic Lead Trail ; ;Related ArticlesScience Group Criticizes Politicians for Global Warming DistortionsSeeking Clarity on Terrible Tornadoes in a Changing ClimateDot Earth Blog: Terrible Tornadoes in a Changing Climate ;

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Old Batteries Crossing Borders Leave a Toxic Lead Trail

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Racing the Clock and a Storm: A Way of Life in Tornado Alley

In the breeding ground of Oklahoma tornadoes, people prepare for the season with the care that the defensive coordinator for their Sooners prepares for the inevitable autumn. Original post: Racing the Clock and a Storm: A Way of Life in Tornado Alley ; ;Related ArticlesJet Stream Causing Tornado OutbreakDot Earth Blog: Science Group Criticizes Politicians for Global Warming DistortionsWorld Briefing | Asia: India: Power Failures Set Off Protests ;

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Racing the Clock and a Storm: A Way of Life in Tornado Alley

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Where did all the tornadoes go?

Where did all the tornadoes go?

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The drought that parched much of the nation during the past year didn’t just stunt crops — it also stunted the annual yield of tornadoes. And an unseasonably chilly spring is so far helping to keep the hellish twisters at bay — although weather forecasters warn that trend may be short-lived.

During the past 12 months, the U.S. was hit by an estimated 197 tornadoes rated EF1 or stronger on the Enhanced Fujita scale, which ranks tornadoes according to their destructive potential from a low “0″ up to a devastating “5.” That was the lowest number of such tornadoes during any 12-month period since record-keeping began in 1954 — well below the previous low of 247 recorded between July 1990 and June 1991.

That’s in huge contrast to the onslaught of tornadoes that tore deadly paths of destruction through the nation in 2011, which was a record-busting year of tornadoes galore.

These tornado statistics come from NOAA National Severe Storms Laboratory researcher Harold Brooks. He also noted in a blog post that the number of people killed by tornadoes during the past year — 7 — was the lowest since 1899. Here’s a graph lifted from his post:

NOAA

(Click to embiggen.)

The record tally of tornadoes in 2011 had people wondering then whether climate change was to blame, and the sudden dearth of the storms has people again wondering the same thing. It certainly feels like one of those boom-bust weather cycles that we expect from climate change. But there doesn’t appear to be any evidence directly linking the recent tornado cycle to global warming.

The dearth of tornadoes over the past year was linked to the lack of moisture in the air amid the shortage of rainstorms nationwide. There are divergent views on whether the recent droughts affecting the tornado states were caused by climate change — although climate models do predict more droughts in central North America, which is often a vast playpen of deadly twisters.

Likewise, we can’t singularly blame climate change for the cold snap that recently hit the Great Plains and the Midwest. But climatologists have drawn links between global warming and the weather patterns that delivered the cold spurt.

Climate Central delves into the tornado/climate question:

The drought that enveloped the majority of the lower 48 states during the past year has contributed greatly to the paucity of tornadoes, since the dry conditions have robbed the atmosphere of the water vapor that fuels severe thunderstorms. Other tornado ingredients, such as strong upper-level winds and atmospheric wind shear, have also been missing. …

Since tornado seasons vary considerably from one year to the next due to natural variability, it is unclear that the absence of tornadoes during the past 12 months has anything to do with global warming, just as it’s unclear if the 2011 tornado outbreaks were connected to it, either.

Tornadoes are complicated beasts, affected not only by moisture and temperature but also by wind shear and other factors.

Meanwhile, the Weather Channel warns that the cold conditions that have been recently keeping tornadoes at bay might soon break:

[T]he stubborn cold air of this past week will … gradually give way to more typical warm and humid air returning from the Gulf of Mexico into the central and southern Plains, to the east of a sharpening dryline.

With that said, the polar jet stream will remain well to the north in Canada through at least mid-week, rather far north for early May. Instead, weaker wind flow aloft, despite the upper-level system limping east from California, will be in play.

What that means is while severe thunderstorms and some tornadoes are possible in the Plains this week, the weaker wind flow aloft may keep this episode from reaching a full-fledged, widespread outbreak [of tornadoes] that May is so notorious for.

John Upton is a science aficionado and green news junkie who

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Where did all the tornadoes go?

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