"Alastair McDonald" Unfortunately I think they are in this case-as
splitting starts over the
open ocean.

Oh well, third time lucky. Look at it this way; you have a prevailing
south westerly flow over the British Isles. Thus the air mass first
hits Kerry in the south west of Ireland where it has to rise a few
hundred feet. As it travels further north eastwards, it eventually
reaches Fort William where Ben Nevis takes it to over 4000 feet.
Now if that air mass was a stunt motor car with its right wheels
being raised by a factor of ten (huh?) then it too would probably
roll over into the Atlantic, just as the air mass does! Or does it
roll the other way :-?

Cheers, Alastair.

Now you've totally lost, not for the first time.;-)
Breaking waves -yes,stunt cars -no.Have a look at-
http://ams.allenpress.com/amsonline/...S%3E2.0.CO%3B2

http://makeashorterlink.com/?W21F52CAC
Weather and Forecasting: Vol. 1, No. 1, pp. 23–41.
Conceptual Models of Precipitation Systems
Keith A. Browning

Imagery from radars and satellites is one of the main ingredients of
nowcasting. When used to provide very detailed forecasts of precipitation
for a few hours ahead, the imagery needs to be interpreted carefully in
terms of synoptic and mesoscale phenomena and their mechanisms. This paper
gives an overview of some conceptual models that are useful for this
purpose. The models represent a variety of systems associated with
midlatitude cyclones and also mesoscale convective systems in the tropics
and midlatitudes. Specific phenomena discussed are
warm conveyor belts, including those with rearward- and forward-sloping
ascent in ana and kata cold frontal situations, respectively;
.................................................. .................................................. .................................................. ........................................

--
regards,
David

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