http://weather.noaa.gov/weather/current/LFML.html

That's the Mistral for you.

Tudor Hughes, Warlingham, Surrey

On 12 Oct, 15:15, Tudor Hughes wrote:
* *http://weather.noaa.gov/weather/current/LFML.html

That's the Mistral for you.

Tudor Hughes, Warlingham, Surrey

Tres interessant - as above but with some gust information, gusted to
60 knots so far.

http://weather.uwyo.edu/cgi-bin/wyow...M&STATION=LFML

Good weather to batten down the hatches and drink vast quantities of
red wine.

Richard

On Oct 12, 3:15*pm, Tudor Hughes wrote:

* *http://weather.noaa.gov/weather/current/LFML.html

That's the Mistral for you.

That's the one with the cold cloud in a sort of diminishing lenticular
return sort of thing is it?

Something to do with lunar phases of 12to 12:30 in posive anomalous
surface pressures.
(Or is that "not"? Whichever the case may be.)

Richard Dixon wrote:

On 12 Oct, 15:15, Tudor Hughes wrote:
* *http://weather.noaa.gov/weather/current/LFML.html

That's the Mistral for you.

Tudor Hughes, Warlingham, Surrey

Tres interessant - as above but with some gust information, gusted to
60 knots so far.

http://weather.uwyo.edu/cgi-bin/wyow...nt&HOUR=curren
t&UNITS=M&STATION=LFML

Good weather to batten down the hatches and drink vast quantities of
red wine.

Richard


Surprisingly low gust ratio. The countryside upwind must be very open and free
from obstructions.


Norman

Tudor, here is an image from this afternoon's noaa19 pass showing the
roughened sea due to the mistral (sun glint effect). Note the longer
wavelength waves imposed on the sea surface, presumably due to orographic
waves embedded in the flow

http://www.woksat.info/etcrj12/rj12-1258-j-fr-s.html

--
Bernard Burton
Wokingham, Berkshire, UK.

Satellite images at:
www.woksat.info/wwp.html

"Tudor Hughes" wrote in message
...

http://weather.noaa.gov/weather/current/LFML.html

That's the Mistral for you.

Tudor Hughes, Warlingham, Surrey

On Oct 12, 4:35*pm, "Bernard Burton" b.j.burton-
wrote:
Tudor, here is an image from this afternoon's noaa19 pass showing the
roughened sea due to the mistral (sun glint effect). Note the longer
wavelength waves imposed on the sea surface, presumably due to orographic
waves embedded in the flow

http://www.woksat.info/etcrj12/rj12-1258-j-fr-s.html

--
Bernard Burton
Wokingham, Berkshire, UK.

Satellite images at:www.woksat.info/wwp.html

"Tudor Hughes" wrote in message

...





* *http://weather.noaa.gov/weather/current/LFML.html

That's the Mistral for you.

Tudor Hughes, Warlingham, Surrey- Hide quoted text -

- Show quoted text -

Thanks for that, Bernard. It was all a bit dark and I couldn't
see the roughness but the long-wave disturbance was there.
Another point worth making is the Mistral is often referred to
as a cold wind but I have found from monitoring it for a few years
that even for a warm place like Marseille this is not really true
though it may feel a bit like it, the dryness adding to the effect.
Could this warmth be due to a slight föhn effect?

Tudor Hughes, Warlingham, Surrey.

I have had a quick look at the ascents, Tudor, what few are available. There
may have been a minimal fohn effect, but the ascent for Nimes (07645) for
midday on 12th, and that for Payerne (06610), suggest that the air below the
subsidence inversion was just heated by insolation, and as one might expect
from the high wind speeds and resultant turbulent mixing, this gave a dry
adiabatic lapse from the surface to 770 mbar. The upwind ascent at Payerne
had a moist layer just below the subsidence inversion, but a much deeper
moist layer would be required for any substantial fone effect. With such
high wind speeds though, there was likely some entrainment of air into the
boundary layer from above the subsidence inversion, and this too would
contribute to the observed surface temperatures.

--
Bernard Burton
Wokingham, Berkshire, UK.

Satellite images at:
www.woksat.info/wwp.html

"Tudor Hughes" wrote in message
...
On Oct 12, 4:35 pm, "Bernard Burton" b.j.burton-
wrote:
Tudor, here is an image from this afternoon's noaa19 pass showing the
roughened sea due to the mistral (sun glint effect). Note the longer
wavelength waves imposed on the sea surface, presumably due to orographic
waves embedded in the flow

http://www.woksat.info/etcrj12/rj12-1258-j-fr-s.html

--
Bernard Burton
Wokingham, Berkshire, UK.

Satellite images at:www.woksat.info/wwp.html

"Tudor Hughes" wrote in message

...





http://weather.noaa.gov/weather/current/LFML.html

That's the Mistral for you.

Tudor Hughes, Warlingham, Surrey- Hide quoted text -

- Show quoted text -

Thanks for that, Bernard. It was all a bit dark and I couldn't
see the roughness but the long-wave disturbance was there.
Another point worth making is the Mistral is often referred to
as a cold wind but I have found from monitoring it for a few years
that even for a warm place like Marseille this is not really true
though it may feel a bit like it, the dryness adding to the effect.
Could this warmth be due to a slight föhn effect?

Tudor Hughes, Warlingham, Surrey.