Visit this site for the narrative of the 2024 Spring Flood Outlook

**Click here for a more in depth look at the 2024 Spring Flood Outlook**

These graphics represent the general probabilities of exceeding minor, moderate, and major flood levels based on ensemble streamflow prediction analysis.  The long-range probabilistic outlook contains forecast values that are calculated using multiple season scenarios from 30 or more years of climatological data including current conditions of the river, snow cover, and soil moisture.  Go to WFO NWPS pages to view more detailed probabilistic information for each river location.

Click here for detailed explanation of the graphics.

Probabilities of exceeding MAJOR Flood Levels (click on specific points to view forecasts)

Probabilities of Exceeding MODERATE Flood Levels (click on specific points to view forecasts

Difference between conditional and historical probabilities for MAJOR flooding

(conditional minus historical)

Difference between conditional and historical probabilities for MODERATE flooding

(conditional minus historical)