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With different time scale selected, the
pressure history graph can be used to
display past 24h or 7 days pressure change
(updating every 60 second).
4.5 Weather Forecast Algorithm
1.
Weather Forecast: comparison between
past 24 hour average against past 30 day
average pressure.
Pressure Difference
Weather status
>=4hpa
Sunny
-0.5hpa to 3.5hpa
Partly cloudy
-3.5hpa to -1hpa
Cloudy
<=-4hpa
Rainy
2.
Storm forecast
:
If there is a sudden pressure decrease due
to storm approaching reason, weather
forecast will having “Rainy” displayed and
flashing. This is to tell there might be a
storm approaching.
