Situation 3-6 hours ago Situation last 3 hours
Dropped heavy (>2 hPa/
3hours)
Dropping heavily (>2 hPa/
3hours)
Remained stable Rising heavily (>2 hPa/
3hours)
Rose heavy (>2 hPa/3hours) Dropping heavily (>2 hPa/
3hours)
TIP: If the weather trend indicator shows that the air pressure is
constantly rising, there is a higher possibility of sunny weather
upcoming. Again, if the air pressure is constantly dropping, there is
a higher possibility of rainy weather.
7.4 Activating storm alarm
The storm alarm notifies you that a pressure drop of 4 hPa / 0.12
inHg or more has occurred during a 3-hour period. Suunto Essential
will activate an alarm and flash an alarm symbol on the display for
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