| Term | Definition |
|---|---|
| Advisory | Highlights special weather conditions that are less serious than a warning. They are for events that may cause significant inconvenience, and if caution is not exercised, it could lead to situations that may threaten life and/or property. |
| Flood Stage | A gage height at which a water course overtops its banks and begins to cause damage to any portion of the defined reach. Flood stage is usually higher than or equal to bank full stage. |
| Monitor Stage | An established river stage at a certain point along a river which is intended to represent the maximum safe water level which will not overflow the river banks or cause any significant damage within the reach of the river |
| Warning | A warning is issued when a hazardous weather or hydrologic event is occurring, is imminent, or has a very high probability of occurring. A warning is used for conditions posing a threat to life or property. |
| Watch | A watch is used when the risk of a hazardous weather or hydrologic event has increased significantly, but its occurrence, location, and/or timing is still uncertain. It is intended to provide enough lead time so that those who need to set their plans in motion can do so. |