Weather Trend; Barometric / Atmospheric Pressure - Bresser Weather Center 5in1 Comfort Mode D'emploi

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Illustration 3: (A) Northern hemisphere, (B) Southern hemisphere
1 New moon
3 First quarter
5 Full moon
7 Third quarter

22 Weather Trend

The weather station will calculate a weather trend for the next 12 hours on basis of the measured val-
ues.
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Illustration 4: Weather trend indicators
1 Sunny
3 Cloudy
5 Storm

23 Barometric / Atmospheric Pressure

Atmospheric Pressure is the pressure at any location on earth, caused by the weight of the column of
air above it. One atmospheric pressure refers to the average pressure and gradually decreases as alti-
tude increases. Meteorologists use barometers to measure atmospheric pressure. Since variation in
atmospheric pressure is greatly affected by weather, it is possible to forecast the weather by measur-
ing the changes in pressure.
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B
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2 Waxing crescent
4 Waxing gibbous
6 Waning gibbous
8 Waning crescent
4 5
2 Partly cloudy
4 Rain
6 Snow
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