In article <v00vu0dq6h8a10qgkb9pg2uvtc2gjaasb9@[EMAIL PROTECTED]
>, RdM wrote:
>nico@[EMAIL PROTECTED]
(Nico Coesel) notes in
>alt.binaries.schematics.electronic<41dee5c8.1580411121@[EMAIL PROTECTED]
>:
>
>: Jim Thompson <thegreatone@[EMAIL PROTECTED]
> wrote:
>:
>: >See...
>: >
>: >http://www.analog-innovations.com/Musings/Funnel.gif
>:
>: I recently visited Auckland (New Zealand). Its now supposed to be
>: summer over there. I've had rain, hail, clouds and sun****ne in one
>: day. According to a taxi driver its not uncommon to have all four
>: seasons in one day.
Hail is actually typically a phenomenon of spring and summer! Hail
traditionally falls from thunderstorms, but also from ***ulonimbus clouds
that are a bit short of thunderstorms, but generally requiring the cloud
base to be above freezing (usually associated with air temperature at
ground level substantially above freezing).
The frozen raindrops that fall from nimbostratus clouds in some winter
storms is not hail, but sleet.
Larger hailstones (20 mm in dianmeter or larger) is one of two factors
that can qualify the responsible storm cell as a severe thunderstorm.
Most or at least a large number of storm cells that qualify on this basis
are "supercells", which in the areas they form the most do so mostly from
2 months before to about a month after the summer solstice. Areas where
supercells are most severe have some trend of getting them earlier in the
"season", as in springtime.
(The other factor that cn qualify a thunderstorm as "severe" is wind
gusts 58 MPH-plus. A thunderstorm qualifies as severe if only one of
these two factors is present. Rainfall and lightning are not factors for
qualifying a thunderstorm as "severe" in the USA. A ***ulonimbus storm
cell having minimal lightning and dumping .1 inch of rain where it dumps
the most rain qualifies in the USA as a severe thunderstorm if peak wind
gusts at ground level or treetop level hit 58 MPH or more or if the storm
cell drops hail reaching the ground with a size of 20 mm or larger.)
>This is a saying that sometimes applies:- However, we have been having
>an extraordinarily wintery summer this year. The best summer weather is
>usually found in late January and February, despite midsummer's
>theoretical December date ...
In most parts of the world that get a summer warm/hot season,
temperatures on a long term trend maximize close to 3 weeks after the
summer solstice - anywhere from 2.5 to 4 weeks, even 5-6 weeks where air
temperature is greatly affected by an upwind body of water. The main
exception is monsoon areas where spring is dry and summer is rainy -
temperatures there may have a long term trend of peaking out closer to or
even in some monsoon areas a bit ahead of the summer solstice.
- Don Klipstein (don@[EMAIL PROTECTED]
)
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