Last Update: 12/8/08

The Pierce County River Flood Warning Phase Web Service provides information on flooding conditions and phases for the Puyallup, Carbon, White and Nisqually Rivers. By moving the mouse cursor over a given reach of a river, one can easily see what level or phase level of flooding the river may be at.

Four phases of flow or flooding have been developed which the river flows may be at. These are:

Phase 1 - No Flooding
Phase 2 - Minor Flooding
Phase 3 - Moderate Flooding
Phase 4 - Severe Flooding

Phase 1 means that no flooding is occurring, however river flows may be at elevated flow stages.
Phase 2 means that minor flooding may likely occur in which low lying areas and pasture may flood due to some overtopping flows.
Phase 3 means that moderate flooding may likely occur in which adjacent property may be flooding and have more dangerous high velocity flow and debris.
Phase 4 means that severe flooding may likely occur in which adjacent and nearby property may be flooding with very dangerous high velocity flow, debris and deep water.

The information on the web page is updated as river flow and flooding conditions change. Therefore, viewers may need to check the site several time during the course of an event to track the phase levels as river conditions can change rather quickly. If you wish to zoom in to see more detailed flood plain information for a particular area or tax parcel, place your cursor on the river you wish to learn more about and then click on the link labeled 'Go to Public GIS'.

We hope you find this site useful and helpful in order to help you plan and take the proper actions to protect your life, family and property.

Pierce County Emergency Management Department - 24 hour number: 253-798-6595