Oregon low snowpack threatens reservoirs
- Baker and Union county reservoirs in northeast Oregon entered late April below typical refill levels after a mild winter left mountain snowpack too thin. - Colorado’s statewide snowpack fell to 18% of median on April 27, while Montana guides said summer river flows now hinge on rain. - Across the West, warm storms turned snowfall into rain, cutting runoff that farms, towns and recreation businesses count on. (nrcs.usda.gov)
Reservoirs in Baker and Union counties are heading into spring below normal because northeast Oregon’s winter snowpack was too thin to deliver a strong runoff. (bakercityherald.com) In the West, mountain snow works like a natural reservoir: it stores water in winter and releases it gradually as temperatures rise. When more winter precipitation falls as rain instead of snow, less water is held back for late spring and summer. (nrcs.usda.gov 1) (nrcs.usda.gov 2) That is the setup this year in Oregon’s Baker Project, where Thief Valley Reservoir on the Powder River helps supply irrigation and recreation in Baker Valley. The Bureau of Reclamation says the project serves crops including grain, alfalfa hay, grass hay and pasture. (usbr.gov) (data.usbr.gov) Local reporting from Baker County has described a winter with scarce mountain snow and only brief April storms, not the deep accumulation that usually feeds reservoirs through meltwater. Baker City Herald coverage earlier this month called the county’s snowpack “skimpy” even after a spring storm. (bakercityherald.com 1) (bakercityherald.com 2) Colorado shows the same pattern in starker numbers. The Natural Resources Conservation Service’s Colorado snow dashboard said statewide snowpack was 18% of median as of 12:00 a.m. on April 27. (wcc.nrcs.usda.gov) Federal snow officials said back in January that Colorado’s problem was not just low precipitation but warmth: much of the moisture that did arrive fell as rain. The agency said reservoir storage was already below normal and slightly lower than the same time last year. (nrcs.usda.gov) That matters beyond farms and municipal water systems. Colorado outdoor coverage has warned that low snowpack and drought could mute wildflower blooms, while Denver Water moved to Stage 1 drought restrictions in March with a 20% reduction target. (denvergazette.com 1) (denvergazette.com 2) In Montana, river guides told Yellowstone Public Radio this week that rafting and fishing conditions will depend on how much rain falls in spring and summer, not on a robust snowmelt already in the bank. The station said guides in southwestern Montana and Glacier National Park are preparing to adjust through the season. (ypradio.org) Scientists say Montana’s below-average snowpack is part of a broader western snow drought, especially at lower elevations. Boise State geosciences professor Alejandro Flores told Yellowstone Public Radio that the season may be a preview of more frequent “low to no-snow” winters. (ypradio.org) For Oregon reservoirs, Colorado wildflower watchers and Montana outfitters, the same calculation now runs through the rest of spring: whether rain can make up for snow that never really arrived. (bakercityherald.com) (wcc.nrcs.usda.gov) (ypradio.org)
