Storms and Convective discussion - October 2024 onwards

[Thunders]

 something in Cherbourg now on blitzortung 

 hailcore the vid kind of reminds me of some of those storm structures that Florida saw before Helene

[Snowspout]

 Thunders Typical that it strengthens over Cherbourg. How there was such scarce lightning activity I do not know. Cloud tops over 22,000ft which is getting near spontaneous nucleation and there should have been plenty of charge separation. Only explanation is that it was still towering and developing as it passed us meaning the tops may have been slightly lower. We even had a marginally severe thunderstorm warning on the soundings.

[Thunders]

 hailcore well,  thats not great really, but still some impressive looking structure on that thing 

[Liamkaboom]

This is from September, but on the night I was helping out at my school's open evening there was a pretty... bad thunderstorm. Little did I know that I missed out on a funnel cloud apparently (according to torro anyway). I've attached the only images I got on my camera of that storm, aswell as the torro confirmation.

[Danunosus]

 Weather-history Ah! I've been following your YouTube channel for years. Love your timelapses, yo.

[Thunders]

its not looking hopeful tbh

[Weather-history]

 Danunosus

Thank you

[Thunderspotter]

thunderstorms today are adopting a new 'ding dong ditch' strategy in northern France, striking once, never to show their faces again.

Not only does this leave the English with nothing more than a distant tease, but the French must also be a bit startled...

Edited October 6 by Thunderspotter

[Thunderspotter]

Well I wasn't expecting anything today but looks like the show never started.

The sky looks incredible currently though - grey cloud shadowed by misty orange and pink.... It's a really interesting colour. 

[Danunosus]

 Thunderspotter Oooo. Can you please take some pics?  Sounds lovely!

Shame about the thunderstorm situation today. The models definitely amped things up too much this time around. Tomorrow looks interesting for popcorn/single-cell showers. Not sure about thunder potential, but the cloudscapes should at least be nice.

[Thunderspotter]

 Danunosus here are 2 I managed to take:

Second photo is very over-exposed, but otherwise you couldn't see the colour. First picture (zoomed shot of the clouds) is much more colour-accurate.

Clouds keep coming and going very fast now, it feels very dark now and the colour is gone. Much cooler-looking (in terms of colour temperature) now.  

[Thunderspotter]

Whoah I spoke too soon earlier!
 

The clouds have awoken (and I missed when it happened)!

 

[*Stormforce~beka*]

 Flash bang flash bang etc no chance 

[Thunders]

Quite heavy rain rn

[Sprites]

Wait until it clears into the North Sea 

[The Tall Weatherman]

I just got round to making the video of the huge nighttime storm on the 21st/22nd. There were a few rumbles that had explosion-like phenomena after the main rumble, I was thinking it might of been the rapid expansion of the air being superheated.

 

[A Face like Thunder]

Tomasz S was talking this evening of 'heavy thundery showers' almost anywhere in England tomorrow, interspersed with sunny intervals which may help to activate the showers 

Edited October 6 by A Face like Thunder

[Danunosus]

 The Tall Weatherman Nice! The explosive thunder, particularly the thunder 1:43 in, sounds like it could have been from a positively charged lightning strike. They're renowned for creating bomb-like thunder. 

[The Tall Weatherman]

@Danunosus That thunder was unlike anything I’ve heard before and another point was 2:18, which sounds like it was a positive strike with multiple high energy flickers that explain the anomalous pair of short explosions.

[Danunosus]

 The Tall Weatherman I love those ones where they continue to pop off after the main bit of thunder has decayed. So cool! Damn, I really want another thunderstorm... Sounds like you had an epic night that night!

[Snowspout]

 The Tall Weatherman That reminds me of this video showing a +CG. Definitely above 120kA some of those strikes. 

Also try using audacity with the audio and turning it into a spectrogram. You could see if there are any EMP interreferences as below.

Edited October 6 by hailcore

[Danunosus]

 hailcore Ahh, that's epic!

Have you ever seen this video before? By far the loudest positive strike I've heard on video before. Wait for it, though, as it isn't the initial explosion that's the most impressive part; it gets intense as fvkk after... \m/
 

 

Edited October 6 by Danunosus

[Snowspout]

 Danunosus Yeah that's probably also above 150kA. But their camera doesn't have the greatest sound quality as its so loud that amplification clipping occurs, if it was a professional audio quality, you can hear the EMP errors that would occur before a positive strike and also the ionization of the air

[Danunosus]

 hailcore Ooo. How do you find EMP interferences using a spectogram? What do you look out for?  

[Snowspout]

 Danunosus Here's a spectrogram from a positive CG. You can see for the most part before the boom the audio ranges in the low to mid frequency ranges. Then suddenly the audio cuts out entirely represented by the black vertical gap two times no frequencies recorded. This is due to EMP interference. The strike induces an electromagnetic current that likely exceeds the recording devices voltage limit, causing the audio to clip as it tries to process more signal than it was designed for.