Have you seen twisters materialize from mammatus clouds yourself? The
University of Illinois link about mammatus clouds on the page Moose
posted says:
"Sometimes very ominous in appearance, mammatus clouds are harmless and
do not mean that a tornado is about to form; a commonly held
misconception. In fact, mammatus are usually seen after the worst of a
thunderstorm has passed."
See: <http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/cld/cldtyp/oth/mm.rxml>
ps: I never thought I'd see mammary shapes that looked threatening.
Chuck Norcutt
Chris Barker wrote:
> Fantastic Moose! I learned about various cloud formations during my
> flying training (met being of particular interest to sensible
> pilots ;-)), but I had never seen mammatus until I got to Florida.
> Then, they seemed often to precede twisters, where a "nipple" formed
> and touched the land or sea (Tampa Bay).
>
> But I have seen them in the UK occasionally over the last 2 years;
> that might be climate change for us ...
>
> Chris
> ~~ >-)-
> C M I Barker
> Cambridgeshire, Great Britain.
> +44 (0)7092 251126
> www.threeshoes.co.uk
> homepage.mac.com/zuiko
>
>
> On 17 Nov 2005, at 05:51, Moose wrote:
>
>
>>Many of us have posted various cloud photos. There have been
>>postings of
>>links to other interesting and/or terrifying cloud photos.
>>
>>I've never seen anything like these
>><http://www.hprcc.unl.edu/nebraska/june2004hastings-mammatus.html>.
>>
>>Moose
>
>
>
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