Re: Close lightning strike and strange tick (fwd)

["High Voltage list" <hvlist@xxxxxxxxxx>]

Original poster: Steven Roys <sroys@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Sun, 08 Jul 2007 16:49:52 -0700
From: Jim Lux <jimlux@xxxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>, hvlist <hvlist@xxxxxxxxxx>
Subject: Re: Close lightning strike and strange tick (fwd)

At 02:11 PM 7/8/2007, High Voltage list wrote:
>Original poster: Steven Roys <sroys@xxxxxxxxxx>
>
>
>
>---------- Forwarded message ----------
>Date: Sun, 8 Jul 2007 11:14:06 -0600 (MDT)
>From: Chip Atkinson <chip@xxxxxxxxxx>
>To: hvlist@xxxxxxxxxx
>Subject: Close lightning strike and strange tick
>
>Greetings,
>
>I was out walking yesterday with my gf and experienced a really strange
>phenomenon. Lightning struck fairly close to where I was so that the
>thunderclap was about .1 second after the flash.  The amount of time
>separating the flash and boom was long enough that you could notice a
>delay but not really any longer.  My .1 second estimate is based on the
>fastest I could start and stop a stop watch.
>
>But anyway, the most interesting thing was that simultaneous with the
>flash was a weird "tick" sound.  It was kind of like a "plasticky" tick
>like you flipped a plastic dinner plate with your fingernail.  I know
>I wasn't imagining anything since my girlfriend heard the sound too.  She
>also felt that it was pretty much simultaneous with the flash.


You're hearing the leader?

There's a lot of strange effects right before the stroke, if you're 
reasonably near.  If the field builds slowly, you get the hair 
standing on end effect (feels like someone tickling the top of your 
head) and a buzzing sound.  I can see the field coming up very 
quickly, and you're hearing just the start of this.



>Any ideas anyone?
>
>Thanks in advance.
>
>Chip