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- Newsgroups: sci.geo.meteorology
- Path: sparky!uunet!europa.asd.contel.com!darwin.sura.net!mips!news.cs.indiana.edu!bronze!bigbang.astro.indiana.edu!turner
- From: turner@bigbang.astro.indiana.edu (George Wm Turner)
- Subject: Re: What causes the yellow?
- Message-ID: <1992Jul30.164305.1078@bronze.ucs.indiana.edu>
- Lines: 27
- Sender: news@bronze.ucs.indiana.edu (USENET News System)
- Nntp-Posting-Host: bigbang.astro.indiana.edu
- Reply-To: turner@bigbang.astro.indiana.edu (George Wm Turner)
- Organization: Indiana University
- References: <24937@scicom.AlphaCDC.COM> <1992Jul27.003907.6737@cco.caltech.edu> <1992Jul29.145806.20919@nsslsun.nssl.uoknor.edu>
- Date: Thu, 30 Jul 92 16:43:05 GMT
-
-
- In article <24937@scicom.AlphaCDC.COM>, wats@scicom.AlphaCDC.COM (Bruce Watson)
- writes:
- >The usual afternoon thunderstorm buildup occurred yesterday with
- >a large one in the early stages as it passed overhead here in
- >Denver as headed to the east. As I looked at the underside, I noticed
- >the usual twisted, boiling, texture, but mixed in among the white and
- >grey was yellow. This was reported by radio amateurs on the severe
- >weather net so it must be a common occurrance in pre-tornadic activity.
- >What is it? And what does it mean to a tornado chaser?
-
-
- we had a thunderstorm blow through southern indiana yesterday afternoon;
- actually it was early evening, 6:00-6:30 local time;. the sun was to
- the west backlighting the cloud. as the cloud moved east and the sun set
- lower in the sky it begain to highlight (lowlight) the lower portions on
- the thunderstorm.
-
- i noticed the orangish (someone might have called it yellow) highlights
- before the sun actually appeared below the thunderstorm. the orangish
- tint comes from the blue light being scattered leaving red & green
- to produce yellow/orange; (this is the same reasons the sky is blue &
- sunsets are red).
-
-
- George Wm Turner turner@bigbang.astro.indiana.edu
- i speak for myself; iu speaks for itself. sometimes we agree; sometimes we don't.
-