Chehalis River Authority - Centralia Inundation Maps

Chehalis River at Porter, WA

Current NWS Forecast

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River Stage (ft)
Hover mouse over river stage to show corresponding flood map

45.1

46.1

47.1

Minor Flood Stage

48.1

49.1

Moderate Flood Stage

50.1

51.1

Major Flood Stage

52.1

53.3

54.2

55.3

56.4

Disclaimer: Inundation maps show estimated areas of flooding associated with river stages reported or forecast at National Weather Service forecast points. These maps are prepared in advance using assumed storm conditions. The exact extent of flooding during an actual event for an observed or forecast elevation may vary due to specific local storm conditions.