June-9-2025_Lake-Data

Prolonged hot and dry forecasts continue to decrease the streamflow runoff forecasts for the Flathead Basin significantly. The lake was as full as allowed for flood risk management on May 26 and then the project ramped down to required minimum outflows to fill the...

June-2-2025_Lake-Data

Prolonged hot and dry forecasts have decreased the streamflow runoff forecasts for the Flathead Basin significantly. The lake was as full as allowed for flood risk management on May 26 and then the project ramped down to required minimum outflows to fill the lake as...

May-27-2025_Lake-Data

Snowpack and streamflow runoff forecasts for the Flathead Basin are near 80% of average. The lake is steadily filling and is anticipated to reach full pool in early or mid-June. Both weather and streamflows are highly uncertain. A warm and rainy event can rapidly...

May-19-2025_Lake-Data

Streamflow runoff forecasts for the Flathead Basin are near normal for May and below normal for June through August. The lake is steadily filling and is anticipated to reach full pool in early or mid-June. Both weather and streamflows are highly uncertain. A warm and...

May-12-2025_Lake-Data

Snowpack and streamflow runoff forecasts for the Flathead Basin are near 85% of average. The lake is steadily filling and is anticipated to reach full pool in early or mid-June. Both weather and streamflows are highly uncertain. A warm and rainy event can rapidly...

April-7-2025_Lake-Data

Snowpack and streamflow conditions in the Flathead Basin have improved during March and runoff forecasts are near 90% of average. The project is ramping up outflow to meet Flood Risk Management objectives and to minimize spill operations later in the season. Both...