- Implement check_rate_of_change() to detect rapid water level rises
- Monitor water level changes over configurable lookback period (default 3 hours)
- Define rate-of-change thresholds for P.1 and other stations
- Alert on moderate (15cm/h), rapid (25cm/h), and very rapid (40cm/h) rises
- Only alert on rising water levels (positive rate of change)
- Integrate rate-of-change checks into run_alert_check() cycle
- Support both SQLite and PostgreSQL database adapters with fallback
Rate thresholds for P.1 (Nawarat Bridge):
- Warning: 0.15 m/h (15 cm/hour) - moderate rise
- Critical: 0.25 m/h (25 cm/hour) - rapid rise
- Emergency: 0.40 m/h (40 cm/hour) - very rapid rise
Default thresholds for other stations:
- Warning: 0.20 m/h, Critical: 0.35 m/h, Emergency: 0.50 m/h
Alert messages include:
- Rate of change in m/h and cm/h
- Total level change over period
- Time period analyzed
This early warning system detects dangerous trends before absolute
thresholds are reached, allowing for earlier response to flooding events.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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