616 tornado events reported in the European Severe Weather Database in 2017! pic.twitter.com/8LKelSyD0h
— severe-weather.EU (@severeweatherEU) January 12, 2018
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A large stovepipe tornado touched down near Vienna International Airport in Austria during the afternoon hours of July 10, 2017. Although local media reports mention a preliminary rating of F1, the event was accompanied by fist-sized hailstones that damaged huge swaths of agricultural land, causing a total damage of 15 million euros. This is the second highest damage in a storm in Austria.
The tornado, somewhat rare for this region, touched down around 16:20 CET (18:20 UTC). It was produced by an isolated supercell that crossed the eastern part of Austria, on its way toward Slovakia.
At this time, there are no specific reports of the infrastructural damage it caused, but the twister temporarily suspended all nearby air traffic and was accompanied by fist-sized hailstones that pounded Vienna metropolitan area, damaging around 10 000 hectares (24 710 acres) of agricultural land. Some of the hailstones were reportedly as large as 5.5 cm (2.1 inches).
A trend of well-below the 10-year average number of estimated tornadoes, observed since 2012, continues so far, according to the US Storm Prediction Center (SPC) and local storm reports from the National Weather Service (NWS).
770 tornadoes were reported up to July 17, 2016, while the data collected in the period between 2005 and 2015 indicates the average number of recorded tornadoes to the same date is 1 069.
H/t reader kevin a.
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Portsmouth Daily Times, Nov. 18, 2013: Tornado hit Paducah plant Sunday [in Kentucky]
WPSD, Nov. 17, 2013: One of the plant’s four enrichment production buildings, the adjacent cooling towers and nearby electrical switchyard sustained most of the damage. Several of the transite panels that cover the building were torn off or broken. Electrical power poles, wiring and other electrical circuits were also damaged. The shrouds or collars that surround the fans on this set of cooling towers were destroyed.
NBC Lexington, KY, Nov. 18, 2013: Officials were continuing to monitor the facility Monday, but said there had been no hazardous material releases, according to the statement.
NRC Report, Nov. 17, 2013: [A]n alert was declared at the Paducah Gaseous Diffusion Plant due to an apparent tornado strike/severe weather event. […] “This event is reportable under 10 CFR 76.120(a)(4) where an emergency condition has been declared an Alert. […]”
– Deadly El Reno, Okla. tornado was widest ever measured on Earth, had nearly 300 mph winds (Washington Post, June 4, 2013):
The tornado that killed 18 people, including 4 storm chasers, west of Oklahoma City Friday was wider than any tornado ever observed or surveyed according to the National Weather Service and leading tornado researcher, Howard Bluestein. The massive El Reno, Okla. twister reached an unthinkable maximum width of 2.6 miles.
“This is the biggest ever,” Bluestein said.
— NWS Norman (@NWSNorman) June 4, 2013
The previous widest tornado record was the F4-rated (on the 0-5 scale) Wilber – Hallam, Nebraska twister that touched down on May 22, 2004. It had a maximum width of 2.5 miles.
The El Reno tornado, originally rated an EF-3 (on the 0-5 Enhanced Fujita scale), was also upgraded to an EF-5, the most intense class of twisters. The upgrade arose not due to the funnel’s width, but because of astonishing wind speed information sensed from several mobile doppler radar units that were in the field, staffed by research meteorologists.
Bluestein, a University of Oklahoma professor, said two of his graduate students clocked wind speeds as high as 296 mph on their mobile doppler unit while observing the storm from the east.
— Angela Fritz (@WunderAngela) June 4, 2013
That 296 mph gust came close to matching the highest wind speed ever measured on Earth. Joshua Wurman, another leading tornado researcher who runs the Center for Severe Weather Research, and his team clocked 301 mph winds in a tornado that struck near Moore, Okla on May 3 1999.
– 5/20/2013 — Oklahoma City, Massive tornado damage — RADAR pulse / “HAARP ring” / Scalar Square confirmation (Dutchsinse, May 20, 2013)
Another website on weather modification: Aircrap.org
– Two-mile-wide tornado slams Oklahoma City area (CNN, May 20, 2013):
Shawnee, Oklahoma (CNN) — A powerful tornado blasted an area outside of Oklahoma City on Monday, ripping roofs off buildings, leveling homes and leaving a massive band of destruction in its wake.
In the desperate seconds and minutes after the storm passed, the human toll was not yet clear.
Survivors emerged from shelters to see an apocalyptic vision — the remnants of cars twisted and piled on each other to make what had been a parking lot look like a junk yard. Bright orange flames roaring from a structure that was blazing even as rain continued to fall.
Links on what will happen if reactor No.4 SFP collapses are down below.
From the article:
“Tepco completed installing a temporary cover at the No. 1 reactor building to prevent the diffusion of radioactive substances by the end of October. The cover is designed to withstand winds of 25 meters per second (56 miles per hour), Matsumoto said.”
What can you say?
– Fukushima Plant Faces Typhoon Summer With Added Tornado Threat (Bloomberg, June 22, 2012):
Tokyo Electric Power Co. (9501)’s crippled Fukushima nuclear plant faces its second typhoon season since the March 11 disaster last year, raising the risk of further radiation leaks if storms thrash exposed pools of uranium fuel rods or tanks holding contaminated water.
Typhoon Guchol hit Japan this week and moved up the main island of Honshu, prompting warnings of floods and landslides from the Japan Meteorological Agency. The Fukushima Dai-Ichi plant wasn’t damaged by the storm, which passed north of the crippled nuclear station, Tokyo Electric spokesman Taichi Okazaki said by telephone on June 21.
Typhoons rake through Japan’s islands most summers. The difference this year is Guchol arrived just a month after one of the most powerful tornadoes ever recorded in the nation hit Tsukuba, about 170 kilometers (106 miles) southwest of the Fukushima Dai-Ichi facility. The tornado, one of four to make landfall on May 6, ripped through an area 17 kilometers long and 500 meters wide, the weather agency said in a May 16 report.
The twisters killed a teenage boy, injured 50, wrecked nearly 300 houses and raised concern among scientists about tornado risk at the Fukushima plant, where explosions last year blew roofs off pools holding spent uranium fuel rods.
“Uranium spent fuel pools of No. 3 and No. 4 reactors are currently naked,” Kazuhiko Kudo, a research professor of nuclear engineering at Kyushu University, said on June 5. “A tornado with winds of 100 meters per second like the one that hit Tsukuba could suck up the pool water,” exposing the fuel rods. He raised the concern during a meeting assessing safety measures at the crippled plant in May, he said.
As dismantling and decommissioning the reactors will take decades, Tepco should review the plant’s safety measures against not only aftershocks and tsunamis but also tornadoes and huge typhoons, even if the possibility of extreme phenomena are very low, said Kudo, one of 12 members of the advisory panel to the Nuclear and Industrial Safety Agency, or NISA.