Water Supply Outlook
Although most of Idaho received below-normal precipitation during March, two storms at the end of the month brought 1 to 3 inches of much-needed precipitation to central Idaho. Nearly all of Idaho received some precipitation from these recent events, with lesser amounts in the far southwest corner of the state.
“Even with below-normal precipitation in March, slight snowpack improvements were observed across most of Idaho since March 1, said Daniel Tappa, Supervisory Hydrologist with the Idaho Natural Resources Conservation Service. “While this seems paradoxical, it implies that little snowmelt occurred and the precipitation that we did receive came in the form of snow.”
Daily conditions updates are available on the Real-Time Conditions page from the NRCS Idaho Snow Survey web page.
Streamflow forecasts have changed little since last month, and for the majority of Idaho runoff is expected to be approximately 80 to 120% of normal. The main areas of concern continue to be centered in the Wood & Lost basins, where median streamflow forecasts range from approximately 20 to 60% of normal.
For information on specific basins, streams, and reservoirs, please view the full report online at April Water Supply Outlook Report.