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Found 43 results

  1. As I'm sure you're aware, lightning bolts can display a wide variety of colours ranging from lilac, white and blue, to even more exotic colours like yellow, orange and even green. There are many causes for this wide variety of colours. This ranges from the temperature of the lightning to atmospheric and environmental conditions, as mentioned below: Lilac/purple lightning Lilac or purple-tinted lightning is usually the most commonly observed colour. It is often caused by precipitation, so the observation of it most likely means that the thunderstorm generating it will be a high-precipitation storm. Lilac lightning is also rumoured to produce louder thunder, though this is disputed. Blue lightning Blue lightning bolts tend to be the hottest lightning bolts to occur on earth. They are also some of the more commonly observed colours (after lilac lightning). Atmospheric-wise, they maybe caused by small amounts of dust in the atmosphere. This is because these dust particles scatter the light coming from the lightning, in a similar way to how molecules in the atmosphere scatter the sun's light, making the sky also look blue. White lightning The light radiated by virtually all lightning bolts is white. This means that to observe it, the air must be free of pollutants and dust which can scatter and refract light - so essentially you're seeing the lightning with very little interference from the atmosphere. White lightning is also the some of the hottest lightning that occurs on earth (after blue lightning). Yellow lightning Yellow lightning bolts are much more uncommon and tend to be cooler than blue, white and lilac lightning bolts are. They also tend to be indicative of dry thunderstorms, so the presence of yellow-tinted lightning could mean that an approaching thunderstorm is a low-precipitation storm. Other colours Other colours of lightning have also been reported. Orange and red lightning has been observed and these bolts tend to be some of the coldest lightning. These colours also tend to be observed near the base of the lightning, as it strikes the ground. Green-tinted lightning is also occasionally seen, and this may be caused by the lightning heating up certain gases in the air, giving it a greenish tint. Well that was a bit of fulminology for you there. I hope you stuck with it, and thanks for reading.
  2. Been searching around for pictures & videos of this supercell that brought down trees near Canterbury I believe & had golf-ball sized hail? All photo links I've found for it in past forums are dead & I'm interested if anyone still has any pics of it. Thanks. Please move if I've plopped this in the wrong area!
  3. Captured looking North just over Dartmoor

    © Ultimate Shot - Sam Whitfield

  4. whitty-southwest-uk

    July 2019

    Chase up to Exeter to catch the active storm cell producing lightning

    © Ultimate Shot - Sam Whitfield

  5. whitty-southwest-uk

    June 2018

    Shot just west of Plymouth looking south

    © Ultimate Shot - Sam Whitfield

  6. One of the best storms seen overlooking Plymouth as it tracks North from the English Channel

    © Ultimate Shot - Sam Whitfield

  7. Active Thunderstorms producing lots of fierce lightning just a mile north from Princetown, Dartmoor National Park, Devon

    © Ultimate Shot - Sam Whitfield

  8. After my first trip with Netweather, storm chasing in Canada and USA, a look back at what occurs on tour. https://www.netweather.tv/weather-forecasts/news/9774-storm-chasing-in-the-usa-and-canada---my-first-experience-as-a-storm-chaser?fbclid=IwAR0M4JVIbdEE00Rc2kyYBHy_N3hW-NK0Vcmh3sp0AbxX38sgSGa39nJJSTo
  9. Came across this channel a few years back when he was creating his own mine in the US, this video recently popped into my subscription box. He talks about the science behind why you can hear thunder underground before you can hear it through the air, really interesting topic.
  10. During the 28th the weather was rather humid, but there were no signs in our part of the approaching chaos that was to hit the hythe/kent area that night, even though the forecasts warned of possible storms. By late evening about 10pm, I could hear rumbles and decided to look outside to see if it was a Thunderstorm or just some old person putting the bin out. Sure enough from then on, it turned from the odd flash, to strikes and flashes every few mins. One of the most amazing storms I have ever seen in my life. What was really gutting though, was I didn't have a fully charged camera and missed out on many strikes that not only knocked our power out, but set car alarms off!
  11. Lightning from the 1st July 2015 thunderstorm from Irlam, UK
  12. This video shows a thunderstorm roll through, along with a bunch of weird but interesting cloud formations. The storm was frontal.
  13. I'm one of those people who can feel so completely alive durng a thunderstorm but find them incredibly relaxing too. I know that people finding storms relaxin and using the sounds as sleep aids is incredibly common and I was wondering if anyone knew the science behind it?
  14. A shiny new thread as we head into the second half of July and the mid point of the summer. What a summer it has been. We started the summer with a lot of thunderstorms as June came in with a bang. Unfortunately as June came to a close and we moved into July the temperatures dropped and so did the storm risk. The most thundery early June I can remember has been balanced by the poorest early July I can remember. This looks like it is all set to change though as temperatures rise and summer returns. Temperatures are already rising across the south and this building warmth and humidity will spread northwards through the early part of the coming week, with the heat likely peaking on Tuesday. The first 30c is very likely this week. The increasing heat and humidity also looks likely, on current modelling, to culminate in the possibility of some dramatic thunderstorms. The thoughts of Weather09 in the previous thread provide a good view of what we could expect from current modelling, seen on page 140 of the thread. The very high CAPE values being modeled for Tuesday are unlikely to be realised with strong ridging. It is currently late Tuesday night into Wednesday the period of interest (subject to change of course). Pin pointing an area to be at risk at this range is pointless. I am thinking this thread is going to get busy with lots of excitement, forecasts and thoughts regarding what is likely to happen, even what you are hoping will happen. I am hoping it will be busy with lots of reports of thunderstorms and convective activity by the middle of this week and beyond. I think most of us would not want to see it fill up with "why do I always miss out", "nothing here", "wishing for no storms" or other moaning posts that should be in the correct moaning thread like the one below. Good luck to all those that want a storm. A chart showing MLCAPE for early Wednesday, just to get the excitement flowing
  15. From the album: Thunderstorms

    Up at 3am to catch this powerful thunderstorm as it skirts up the east side of the Island.

    © 2014 Joshua Risker

  16. From the album: Thunderstorms

    One of the two thunderstorms I got to see whilst on holiday in Greece, July/ August 2014.

    © 2014 Joshua Risker

  17. Sprites are a form of lightning (yes I'm talking about a form of lightning, not the drink!) that occur in the mesosphere above thunderstorms in the troposphere. They are often triggered by discharges between the thundercloud below and the Earth. Despite all of this, they are rarely documented. There have only been a few instances of them being observed, like the image below that was taken from an aircraft in July 1994.
  18. Hello, wasn't sure if this will be any interest to anyone but though I'd might post it. I have big interest in weather and tsunamis so personally was very interested when I found out this, I hope it not off topic "Folkestone (Kent) and Brighton (Sussex), 20 July 1929 — large tsunami-like wave struck the Kent and Sussex coasts, busy with tourists, and drowned two people, at Brighton and Worthing the wave was accompanied by sudden downpours of rain and high winds, but at Folkestone and Hastings, where one person drowned at each, the weather was clear and the unexpected wave was estimated to be c. 3.5 and 6 m high, respectively. Douglas (1929) suggests the wave was caused by a squall-line travelling up the English Channel, coincident with thunderstorms, and so may be referred to as a meteotsunami." http://www.hadesign.co.uk/worthing_history/history_pages/html/Wish_you_were_not_here.html http://www.bgs.ac.uk/research/highlights/2011/tsunamiSWEngland2011.html
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