Streamflow Forecasts

Northern Water’s Snowpack and Streamflow Comparisons reports show snow-water content comparisons and streamflow forecasts for the watersheds in the Colorado-Big Thompson Project. Northern Water publishes the reports on this page from the beginning of February through the beginning of May. Go to the SnoWatch Snowpack Data page for snowpack data from remote Snowpack Telemetry (SNOTEL) platforms in eight watersheds, covering an area from west of Loveland, CO to east of Kremmling, CO.

 Colorado SNOTEL Statewide Snowpack Map
 Colorado Snowpack Update – All State River Basins

February 2018 Streamflow Forecast
Snow accumulation throughout Colorado got off to a slow start in January and continues to be below average statewide. All basins have below average snow water equivalent and the most probable streamflow forecasts are also below average. As of Feb. 1, Colorado's statewide snowpack was 59 percent of average. The Upper Colorado River basin was 81 percent of average and the South Platte Tributaries were 74 percent of average. Learn more>> 

March 2018 Streamflow Forecast

Snowpack across the state improved during the past month, and the same was true for the Upper Colorado River basin and South Platte River tributaries that feed Northern Water's Colorado-Big-Thompson Project. Despite those improvements, snowpack still remains behind average levels for this time of the year. As of March 1, Colorado's statewide snowpack stood at 72 percent of average (an improvement from sitting at 59 percent on Feb. 1), the Upper Colorado River basin was at 85 percent of average (up from 81 percent on Feb. 1), and the South Platte River tributaries collectively were at 84 percent of average (up from 74 percent on Feb. 1). Learn more>> 

April 2018 Streamflow Forecast
The snowpack continue to struggle across most of Colorado. Fortunately, some of the March storms brought precipitation to the Poudre basin. As of April 1, the statewide snowpack was 68 percent of average, the Upper Colorado River basin 78 percent and South Platte tributaries were at 77 percent of average. Learn more>>

May 2018 Streamflow Forecast
Precipitation in the mountains and within Northern Water's district boundaries was below average for April. Mountain snowpack also began to melt in watersheds Northern Water monitors. Colorado's statewide snowpack was 57 percent of average, while the Upper Colorado and South Platte were 83 and 74 percent of average, respectively.  Learn more >>

Winter at Pinewood Reservoir