![background image](http://html1.mh-extra.com/html/vetus/meteo-liner/meteo-liner_manual_1010425035.webp)
Preliminary remark
Unfortunately, an absolute atmos-
pheric pressure value on its own can-
not tell us anything at all about the
weather. Thunderstorms, rain, gales
and calms are all possible at any
given air pressure.
There is, however, a very close rela-
tionship indeed between the extent
and direction of change in atmos-
pheric pressure per unit of time - i.e.
what meteorologists call the ‘pres-
sure tendency’ - and the way the
weather develops.
In short, wind and weather are
shaped by how fast the air pressure
changes! However, latidude plays a
part here as well - the further away
one is from the Equator, the less will
be the wind speed likely to result
from a given pressure tendency.
Your baroscope shows these
changes very clearly, both in terms of
time and of pressure. The pressure
tendency is indicated in hPa per hour
(N.B. hPa = hectoPascal).
10.0801
35
Baroscope
Date
Time
Pressure
in hPa
Time scale (past 24 hours)
Typical warm front - slightly active (summer)
Typical warm front - active (winter)
Typical cold front - slightly active
Typical cold front - active
Date
Time
Pressure
in hPa
Time scale (past 24 hours)
Date
Time
Pressure
in hPa
Time scale (past 24 hours)
Date
Time
Pressure
in hPa
Time scale (past 24 hours)
ENGLISH