Curved cloud with lightning

[stardust steve (Steve)]

Hi. Found this photo from the last lightning storm that hit Adelaide. I was enhancing the colours that were there to try and bring out that lightning bolt when upon reducing the red luminance, this curved cloud appeared. I can push it further to bring out the roll even more but the noise follows.
Was wondering if anyone knows about or has seen this type before?
Thank for viewing

[Astroman (Andrew Wall)]

Could be the gust front of the storm but tend not to look that smooth, what was the exposure time?

[stardust steve (Steve)]

Originally Posted by Astroman

Could be the gust front of the storm but tend not to look that smooth, what was the exposure time?

Hi. Was 30 secs@ iso1600 with my 500 D and 18-55mm kit lens@18mm
I have a few more images taken just afterwards, will look at them and see is there is anything else too
Edit- will check re ISO but was 30 secs

[Astroman (Andrew Wall)]

Yep exposure time could have smoothed out the cloud, it looks lit up by the light pollution so it would look smoother. Hence the red colouring.

[stardust steve (Steve)]

Ok excellent. Thanks. Oh and the ISO was 100 not 1600
Too many astro images at 1600 haha.
Cheers

[MrB (Simon)]

Hi Steve.
Hard to make out, but it could be a Shelf cloud or a Wall cloud.
Tho more likely to be a Shelf cloud.

[stardust steve (Steve)]

Thanks Simon for the info i will check them out. i found another one. Thet seem to show up better when the sky has been illuminated by lightning further away.

I used the exact same settings to bring out the cloud as the previous image.