On Mon, 9 Sep 2013 10:44:47 +0100, "Ophelia"
> wrote:

>
>
>"Jeßus" > wrote in message
.. .
>> On Sun, 8 Sep 2013 22:09:31 +0100, "Ophelia"
>> > wrote:
>>
>>>
>>>
>>>"Cheryl" > wrote in message
raweb.com...
>>>> On 9/8/2013 6:36 AM, Ophelia wrote:
>>>>
>>>>> Yes, skies like that are fairly common here, but I know what you
>>>>> mean
>>>>> The spookiest thing I've experienced (perhaps you are all used to it
>>>>> but
>>>>> I've only ever seen it once) was when I was driving through a heavy
>>>>> snow
>>>>> storm with lightening directly above! Seems it is called
>>>>> 'Thundersnow'!
>>>>
>>>> I've only experienced thundersnow a few times, but it's eery. Thinking
>>>> about what causes thunder and lightning being hot and cold air masses
>>>> colliding, it's strange to see heavy snow with that going on.
>>>
>>>Just the one time for me, and it was spectacular
>>
>> A couple of months ago we had a classic frosty morning with crystal
>> clear skies... and a rainbow.
>
>Blimey! Any idea how that happened?

No, other than there had to be some moisture in the air for that to
happen.

Like all frosty mornings (I do recall one notable exception to that)
the sky looked to be crystal-clear... once the sun began melting the
frost I guess there was a lot of evaporation. I'm no weatherman
though!