Suunto TRAVERSE 1.0 User Manual page 71

The storm alarm is off by default. You can turn it on in the options
menu under ALTI-BARO » Storm alarm.
NOTE: The storm alarm does not work if you have altimeter
profile activated.
When a storm alarm sounds, pressing any button ends the alarm. If
no button is pressed, the alarm repeats once after five minutes. The
storm symbol remains on the display until the weather conditions
stabilize (pressure drop slows down).
A special lap (called 'storm alarm') is generated when a storm alarm
occurs while recording an activity.
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