The monitoring component of a modern flood-threat recognition system can range from a collection
of automated precipitation and stream gauges (e.g., Automated Local Evaluation in Real Time
[ALERT] systems) to more advanced systems that utilize weather radars, satellites, and sophisticated
hydro meteorological numerical models of the atmosphere and watersheds. The objectives of
the measurement and detection task are to monitor developing hydro meteorological and watershed
conditions and project what might develop in the near term. Reliable data transmissions from the
sensors to a central location for display and assessment are essential for these systems, as are transmissions
of the assessments and warnings to response authorities and citizens.