Many times I've watched the setting sun. And if the wind is still, as the
sky gets darker and the air cooler, I often feel a breeze coming from the
direction of the sunset.

Has anyone else noticed that, or am I just nuts?


--
"The probability of anything happening is in inverse ratio to its
desirability." -- Gumperson's Law

Gregory L. Hansen wrote:

Many times I've watched the setting sun. And if the wind is still, as the
sky gets darker and the air cooler, I often feel a breeze coming from the
direction of the sunset.

Has anyone else noticed that, or am I just nuts?

Probably and maybe.

Warm air, i.e. where the Sun hasn't yet set, is usually at a higher
pressure than cool air, i.e. where the Sun has set.

Assuming geography like mountains or an ocean doesn't compicate things,
high pressure air will tend to flow to a low pressure region.

For more than you ever wanted to know about the weather, download
"Aviation Weather for Pilots and Flight Operations Personnel", AC 00-06A
in PDF from:

http://www.airweb.faa.gov/Regulatory...e?OpenFrameSet


--
Jim Pennino

Remove .spam.sux to reply.

How close to the ocean do you live?

Are you sure that you're not experiencing a simple 'land breeze'/'sea
breeze' type of effect?

Harry C.

"Gregory L. Hansen" wrote in message
...

Many times I've watched the setting sun. And if the wind is still, as the
sky gets darker and the air cooler, I often feel a breeze coming from the
direction of the sunset.

Has anyone else noticed that, or am I just nuts?


If there are no dominant "weather cells" nearby
all other things being equal and the wind being
still, and you are nowhere near the ocean, as the
sun sets and the temperature drops you'd expect
some form of differential to be set up and
established by the passage of day to night.


Wind will follow this, leastways, its seems to do
so here at Falls Creek in rural Australia.

Some of your colleagues will ask for stats.

Have you tried the converse?
Watching the rising of the sun?


Let me know how it goes.

Best wishes,




--
Pete Brown
Falls Creek
OZ
www.mountainman.com.au

Gregory L. Hansen wrote:

Many times I've watched the setting sun. And if the wind is still, as the
sky gets darker and the air cooler, I often feel a breeze coming from the
direction of the sunset.

Has anyone else noticed that, or am I just nuts?

The empirical facts are what they are, you should trust them. At a
nearby peak the convection current, that occurs exactly at sunset as the
sun dips behind the adjacent hill 5 miles away, will sometimes lift the
hat from your head. The hang gliding crowd capitalizes on it, so no,
you're not nutz, but i know a couple of those guys and they definitely
are There is also an inverse effect near some of our larger very
cold lakes called (I think) inversions; the cold lake cause a down draft
of the cooled and thus denser air that later rises along the shoreline
as it warms back up.

The breeze at our local "Point", is probably due to the sudden cooling
of the air in the valley between the mountains due in turn to the sudden
loss of solar heating. Since the Point is the last area illuminated in
this big ditch as the sun drops there is a convection current that flows
down the adjacent side of the adjacent mountain, and thus up and past
the Point, which is still warm up until the last seconds before the sun
dips completely behind the other mountain.

If you're on flat terrain I'd have to consider that you're nutz

Richard Perry

In article ,
(Gregory L. Hansen) wrote:

Many times I've watched the setting sun. And if the wind is still, as the
sky gets darker and the air cooler, I often feel a breeze coming from the
direction of the sunset.

Are you next to a lake or ocean or mountains? Here I get
little breeze and miss it since I grew up near the shore
of Lake Michigan.

/BAH




Has anyone else noticed that, or am I just nuts?



Subtract a hundred and four for e-mail.

In article , wrote:
Gregory L. Hansen wrote:

Many times I've watched the setting sun. And if the wind is still, as the
sky gets darker and the air cooler, I often feel a breeze coming from the
direction of the sunset.

Has anyone else noticed that, or am I just nuts?

Probably and maybe.

Warm air, i.e. where the Sun hasn't yet set, is usually at a higher
pressure than cool air, i.e. where the Sun has set.

Assuming geography like mountains or an ocean doesn't compicate things,
high pressure air will tend to flow to a low pressure region.

I couldn't decide which direction I thought the wind should flow. Because
as the sun sets, the air in front of me cools and I thought it was just as
likely that the wind would blow towards the sunset.
--
"For every problem there is a solution which is simple, clean and wrong."
-- Henry Louis Mencken

On a sunny day (Sat, 28 May 2005 02:11:15 +0000 (UTC)) it happened
(Gregory L. Hansen) wrote in
:


Many times I've watched the setting sun. And if the wind is still, as the
sky gets darker and the air cooler, I often feel a breeze coming from the
direction of the sunset.

Has anyone else noticed that, or am I just nuts?
No, but simple explanation he
Wind is mostly south west through the year where I live,
sun sets in west.
These wind patterns rotate, so I dunno where you are, lookup
statistics on wind direction.

'often' is not very precise, keep logs ;-)

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On Sat, 28 May 2005 11:49:15 +0000 (UTC), Gregory L.
Hansen wrote:

I couldn't decide which direction I thought the wind should flow. Because
as the sun sets, the air in front of me cools and I thought it was just as
likely that the wind would blow towards the sunset.

When you cool a spot in the gas the pressure decreases
at that spot and gas flows towards that spot. When
you're looking at the last seconds of the sun the air
behind you is the only area that has cooled, hence the
wind is toward you.
--

"injA sang ruye sang band nist"

Hi Gregory this happen all the time in Florida. Sunrise causes the
surface temperature to drop about 3 degrees,and creates an inversion.
Bert