Which statement accurately describes indicators and thresholds in I&W and how to use them to avoid false alarms?

• A. Thresholds are automatic triggers only.
• B. Indicators are only rumors.
• C. Indicators are signals; thresholds define triggers. Use multiple corroborating indicators, track trends, require consistency across sources, and adjust as information evolves.
• D. Thresholds never change.

Answer: (C)

In indications and warning, indicators are signals from multiple sources that point toward a possible development, and thresholds are defined levels that trigger a decision or action. To avoid false alarms, you use multiple corroborating indicators rather than relying on a single signal, you track trends over time to distinguish genuine movement from noise, you require consistency across sources, and you adjust thresholds as new information arrives or the situation evolves. This approach helps separate signal from noise and keeps the warning process adaptive.

Why the other ideas don’t fit: thresholds aren’t automatic triggers in every case; they require interpretation and corroboration before prompting action. Indicators aren’t just rumors; they are signals derived from observations, data, and reporting. Thresholds aren’t fixed forever—they should be updated as new information comes in and the context changes.