Re: pinhole heat lightning

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From: Paul Doherty (pauld@exploratorium.edu)
Date: Thu May 13 2004 - 09:46:20 PDT

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Message-Id: <l03110737bcc9566940e8@[192.168.112.30]>
Date: Thu, 13 May 2004 09:46:20 -0700
From: Paul Doherty <pauld@exploratorium.edu>
Subject: Re: pinhole heat lightning

Hi Roy

Heat lightning is the name applied to lightning without audible thunder.

It is ordinary lightning and it makes ordinary thunder, but refraction of
sound by temperature variations in the atmosphere can bend the propagating
sound so that it misses places on the ground.

This is almost always true of lightning over 20 miles away. It's rare overhead.

Paul D

Next message: Jim Hill: "Re: Shocken solenoids"
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In reply to: ROY MAYEDA: "heat lightning"
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