On 23/08/2015 12:33, ss wrote:
On 23/08/2015 09:40, Martin Brown wrote:
On 23/08/2015 09:00, Harry Bloomfield wrote:
From around 15:00 through to 21:00 yesterday, we had a bit of a storm.
I recorded 60mm of rain came down during the course of it and several
properties were flooded at the lower extremes of the village.

What was really weird, was the noise from the thunder. Aside from the
usual crashes, there was a continuous noise, which sounded rather like a
jet engine roar, which lasted for tens of minutes at a time. I have
never heard the likes of it before and just wondered what mechanism
would allow the noise from the thunder to continue for such a long time
and such a steady noise?

There was a lot of cloud to cloud lightning that was bouncing around
here. Pretty much did for any chance of connecting to the internet. It
wasn't strictly continuous but the storm was so extensive that there was
always some noise from long thunderstrikes reverberating around.

Only superficial flooding of the usual places round here.

It sounded so unlike thunder, I went out several times, to see if it
might be wind noise or some other locally generated noise. It wasn't
because several others reported the same noise, in the path of the same
storm.

Interesting how under such very thick cloud the grass looks super green
and red flowers redder but blue flowers look noticeably dimmer.

Could it be the severity and size of the storm, I have heard similar in
Turkey where they have spectacular thunder storms, sometimes it is like
the thunder never stops and I put that down to there being so many
lightning flashes over such a wide area that in between the ones viewed
locally you got the rumble from more distant ones without seeing the flash.

I think the extent of the storm was large enough that it could have been.

The other noise you can sometimes get in a thunderstorm and it is bad
news if you hear it is a sort of fizzy noise as the air starts to break
down. A strike is imminent and in roughly your location...

Annoyingly the strike doesn't always follow the obvious highest point
path. I was in a building with a large metal roof area underneath a much
higher supergrid pylon that took a direct hit. That is the lightning
went for the building rather than the higher pointy pylon. It was
incredibly loud and did for the switchboard and all mains power.

--
Regards,
Martin Brown