The Living Force
#gers and #orage also in #ariege and #bigorre instability will increase in the coming days @pierre_
#Perú . Video Juan José Finch
Motion 2 - A 2020 Short Time-lapse Film created by David Baxter III. All scenes were captured during the 2020 storm chase season. All time-lapses in scenes are available for licensing up to 8K resolution.
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In Gard, France ping pong ball size hail were reported. Here is a video recorded during the aftermath of the storm, which transformed the highway into a river:We thus noted 244 mm in Saint-Dionizy (30) in 3 hours, an episode which occurs statistically less than once per century. This absolute record for the Gard department is also close to the record for the whole of metropolitan France (253 mm in 3 hours in Montpellier in 2014)
He also uploaded it to Youtube, open can the recording and play it at 0.25 speed. I think it is a fascinating observation; below are a few points regarding the nature of this event, and how one might be able to observe others.A GIGANTIC JET WITH FIREBALLS: Lightning on Earth is getting weirder and weirder. On the evening of Sept. 20th, Puerto Rican photographer Frankie Lucena pointed his Sony A7s camera at an offshore electrical storm. This is what he saw:
On Gigantic jets captured near Mauna Kea, Hawaii -- Sott.net there was one image, also by Frankie Lucena, the same person who recorded the present video. One notices the stars behind and the clouds below, showing he was quite a distance away.On September 14, 2001, scientists at the Arecibo Observatory photographed a gigantic jet—double the height of those previously observed—reaching around 70 km (45 mi) into the atmosphere. The jet was located above a thunderstorm over an ocean, and lasted under a second. The jet was initially observed to be traveling up at around 50,000 m/s (110,000 mph; 180,000 km/h) at a speed similar to typical lightning, increased to 160,000 and 270,000 m/s (360,000–600,000 mph; 580,000–970,000 km/h), but then split in two and sped upward with speeds of at least 2,000,000 m/s (4,500,000 mph; 7,200,000 km/h) to the ionosphere where it then spread out in a bright burst of light.
Wondering about Transient Luminous Events and meteoric or cometary dust“This chart provides just a glimpse of what can be seen and photographed above very strong thunderstorms,” says Lucena. “I used actual images, enhanced and slightly modified to better show what they actually look like.” “This is the first chart to show the Ghost and a Negative Sprite event,” he continues. “The Ghost is a green colored shadow that appears above some sprites. The green color is caused by electrons exciting oxygen molecules in the mesosphere, approximately 80 km high. A Negative Sprite is triggered by a -CG lightning discharge as opposed to a regular sprite which is triggered by a +CG lightning discharge.” (Note: CG means “cloud to ground.”) DEFINITIONS:
SPRITES: They initiate between 65 and 85 km in altitude and are typically triggered by a positive cloud-to-ground lightning strike. The streamers first grow downward and then upwards before disappearing. They are mainly red in color but as they grow downward they will transition to purple and then to blue.
HALOS: They are typically triggered by a positive cloud-to-ground lightning strike like sprites and will sometimes appear together with sprites. They initiate at about 80-85 KM and will typically look like a red oval shaped cloud.
TROLLS: They occur during long-lasting sprite events with ongoing lightning activity in the cloud and with long lasting +CG currents to ground. Its hard to link them to a particular cloud-to-ground lightning strike. They are mainly purple in color like the tendrils of a sprite and will transition to blue towards the bottom.
ELVES: They are an electromagnetic pulse that originates at the same time as the cloud-to-ground lightning strike. They project a ring of red light as electrons at the base of the ionosphere excite nitrogen molecules. They typically appear at about 90 Km in altitude and are considered the most common type of Transient Luminous Event.
BLUE STARTERS: A blue starter is an electric streamer discharge that initiates under the screening layer at the cloud top. They start out as a white channel rising from the cloud top that quickly transitions to a blue fan shaped plume as it travels upwards to about 26 Km in altitude. The white channel is rarely seen because they are typically obscured by the cloud.
BLUE JETS: They are often linked to charge removal by negative cloud-to-ground lightning. They initiate under the screening layer at the cloud top and they start out as a bright white channel rising from the top of the storm cloud that quickly transitions to a blue coned shaped plume as it travels upwards to about 40 Km in altitude. The white channel is rarely seen because they are often obscured by the cloud.
GIGANTIC JETS: Unlike Blue Jets and Starters, a Gigantic Jet initiates in the middle of the storm cloud. They start out as a bright white channel rising from the cloud top that quickly transitions to blue and then to red as it climbs as high as 80-90 Km in altitude. They are usually preceded by multiple negative cloud-to-ground lightning and will typically appear during a null in the lightning activity.
NEGATIVE SPRITE: These sprites are similar to regular sprites but are triggered by a negative polarity cloud to ground lightning discharge (-CG). A negative sprite requires a higher Charge Moment Change than a regular sprite and is usually located above the convective core, or the surrounding area, because this is where -CG lightning usually occurs.
GHOST: Newly discovered so little is known. They sometimes appear at the top of a Sprite event and are green in color. The green color is caused by electrons exciting Oxygen molecules high up in the Mesosphere at around ~80 Km.
PIXIES: They are blue emissions of light that are very small in size and usually located either on top or on the outer wall of the convective core of a storm cell.
SECONDARY GIGANTIC JET: They originate from the cloud top, under the shielding area of the preceding sprites, and develop upward to reach the lower ionosphere at ∼90 km. The streamers branch outward towards the top, which is similar to what occurs in a Gigantic Jet event.
Leaving the speculations, next is something one might try.Changes in the conductivity parameters, especially in the lower E-region can also be caused by the ambient dust particles of meteoric origin. Statistical studies have shown that the monthly occurrence rate of reversals in the electrojet currents is highly correlated to the monthly mean of meteor showers. This high correlation is seen even during geomagnetically disturbed periods. The meteoric dust particles thus play a very important role in altering the local electrical conductivities in the lower E-region and in controlling the electrodynamic processes in this region.
A mesoscale convective system mentioned in the drawing is explained in the Wiki as:“I was about 200 miles away from the thunderstorm,” says Smith. Turns out, that’s about the right distance. You have to be far away to see sprites over the top of the thunderclouds.
Ready to observe?A mesoscale convective system (MCS) is a complex of thunderstorms that becomes organized on a scale larger than the individual thunderstorms but smaller than extratropical cyclones, and normally persists for several hours or more. A mesoscale convective system's overall cloud and precipitation pattern may be round or linear in shape, and include weather systems such as tropical cyclones, squall lines, lake-effect snow events, polar lows, and mesoscale convective complexes (MCCs), and generally forms near weather fronts. The type that forms during the warm season over land has been noted across North and South America, Europe, and Asia, with a maximum in activity noted during the late afternoon and evening hours.
NEW YORK (VINnews) — A Russian plane travelling from Yekaterinburg to the southern city of Krasnodar was forced to make an emergency landing after being buffeted by severe turbulence as well as being hit by lightning. A short video captured the terrifying experience of the 175 passengers aboard the Boeing 737-800 as it went into free-fall while approaching the Black Sea resort of Sochi, according to a Daily Mail report.