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Dark ovals in Jupiter's polar haze, visible only at UV wavelengths, were first noticed 25 years ago, then ignored. A new study shows that these dark UV ovals are common, appearing at the south pole in...
At their most extreme, supercell thunderstorms -- those with persistent rotating updrafts -- can spawn tornadoes, causing widespread devastation.How do tornadoes form? What ingredients do they require...
Advanced radar techniques may help distinguish which severe storms are likely to produce dangerous tornadoes, leading to more accurate warnings, according to National Science Foundation-funded sc...
Tornadoes and severe thunderstorms kill people and damage property every year. Estimated U.S. insured losses due to severe thunderstorms in the first half of 2016 were $8.5 billion. The largest U.S. i...
It was the afternoon of May 9, dead center in Tornado Alley: Oklahoma. Severe thunderstorms were forecast for the southern part of the state.That was the "go" call for atmospheric scientists Josh Wurm...
One tornado alone can cause intense destruction, but the largest impact on both death rates and economic losses stems from “outbreaks,” in which six or more tornadoes occur within a limited time.
Now, a new study shows that the average number of tornadoes in these outbreaks has risen since 1954, and that the chance of extreme outbreaks—tornado factories like the one in 2011—has also increased.
WEST LAFAYETTE, Ind. - Significant tornado outbreaks and especially strong tornadoes are more likely occur within periods of activity lasting three or more days, according to a Purdue University torna...
The Tornado nebula (G357.7-0.1) is a mysterious radio source with bright "head" and faint "tail" located in the direction of the Galactic center (GC) region. We here report the discovery of two diffus...
Tornado activity is associated with extreme convective weather which can cause extended damage and even in some cases the loss of life. The complex inland terrain of Greece along with the Ionian Sea a...
On 7 May 2005, a squall line with an embedded bow echo formed over Southern Romania causing severe wind damage. The length of the wind damage was around 150 km. Three tornadoes have been reported, two...
On 7 May 2005, a squall line with an embedded bow echo formed over Southern Romania causing severe wind damage. The length of the wind damage was around 150 km. Three tornadoes have been reported, two...
On 7 May 2005, a squall line with an embedded bow echo formed over Southern Romania causing severe wind damage. The length of the wind damage was around 150 km. Three tornadoes have been reported, two...
This paper presents an observational study of the tornado outbreak that took place on the 7 September 2005 in the Llobregat delta river, affecting a densely populated and urbanised area and the Barcel...

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