Cache County, UT — Agricultural Water Intelligence Brief

Bear River Basin | Issued: May 15, 2026

Situation Summary

Cache County agricultural water users are entering the 2026 irrigation season facing a severely stressed water supply. Following one of the worst snow years on record in the Mountain West, the regional snowpack that typically sustains late-season irrigation has been largely eliminated weeks ahead of schedule. While a handful of stations and current streamflows show some residual supply, the overall outlook for the Bear River Basin serving Cache County is significantly below normal, and producers should plan now for a constrained irrigation season. Dairy operations and alfalfa producers — the backbone of Cache County agriculture — face meaningful supply risk through midsummer and into the late-season period.

Snowpack Conditions

The snowpack picture across the Bear River Basin watersheds serving Cache County is deeply concerning. As of May 14, 2026, the majority of monitored SNOTEL stations have reported zero snow water equivalent (SWE) and zero snow depth — weeks earlier than typical seasonal norms:

Only two stations retain any measurable snowpack:

The one notable exception is USU Doc Daniel, which is reporting 13.1" SWE (49% of the 26.6" median) with 31.0" depth. While this represents meaningful remaining storage, it is the lone bright spot in an otherwise depleted landscape. The regional snowpack reserve available to replenish streams and reservoirs through late spring and early summer is, for practical purposes, nearly exhausted.

Streamflow Conditions

Current streamflows across the Bear River Basin present a mixed but generally cautionary picture as of May 15, 2026:

The rising trend on the Logan River offers some near-term relief, but the falling trends on the Little Bear River, Blacksmith Fork (stable but modest), Bear River at Pescadero, and Bear River near Corinne indicate that peak runoff may have already passed on several tributaries. With snowpack reserves nearly gone across most of the basin, flows are unlikely to be sustained at current levels through the heart of irrigation season.

Key Reservoir Systems

Cache County's primary water storage infrastructure includes Hyrum Reservoir, Porcupine Reservoir, and Newton Reservoir for local irrigation supply. Cutler Reservoir on the lower Bear River is managed by PacifiCorp and plays a role in regional flow management. Bear Lake — managed by PacifiCorp under FERC license P-20 in coordination with the Bear River Commission (not USBR) — functions as the primary multi-year carryover storage for the broader Bear River system and is a critical buffer in low-water years.

For current storage data on local reservoirs, contact your water district or the U.S. Bureau of Reclamation. Bear Lake operational status should be directed to the Bear River Commission or PacifiCorp.

Water Rights Administration Outlook

Given the severely depleted snowpack and early runoff trajectory, there is a high likelihood that water rights administration on the Bear River and its Cache Valley tributaries will become increasingly active as the season progresses. Junior water right holders — including those with more recently established irrigation rights — face elevated curtailment risk if streamflows decline to levels that cannot satisfy all decreed rights in priority order.

Utah operates under the prior appropriation doctrine ("first in time, first in right"), and Cache Valley has a well-established hierarchy of senior irrigation and municipal rights. Producers holding junior priority dates should begin contingency planning now. Contact the Utah Division of Water Rights for your specific priority information and to monitor any active calls or curtailment notices.

Groundwater Considerations

Cache County sits above the Cache Valley Groundwater Basin, a productive alluvial aquifer system that provides supplemental irrigation and municipal supply across the valley. In below-normal surface water years, groundwater demand typically increases as producers seek to offset reduced canal deliveries.

Increased pumping by multiple users simultaneously can accelerate aquifer drawdown and, in some cases, trigger interference issues between well users. Producers considering increased groundwater reliance this season should verify that their water rights authorize the intended use, confirm any applicable pumping restrictions with the Utah Division of Water Rights, and coordinate with their water district on aquifer conditions.

Management Recommendations

Immediate Actions (Now through June):

Planning Actions (June through August):

Efficiency Actions (All Season):

Historical Context

The 2026 season bears comparison to several significant low-snowpack years in the Mountain West. The 2021 drought year produced significant water rights curtailments across Utah and Idaho, with many junior users receiving no deliveries during peak summer months. The 2015 drought brought widespread emergency water management actions and highlighted the vulnerability of junior water right holders in the Bear River system. The 1977 drought remains one of the most severe on record, forcing substantial agricultural adjustments and accelerating investments in water use efficiency across the region.

In each of these analog years, the producers who fared best were those who assessed their situation early, communicated proactively with water managers, and made planting and herd management decisions before the crisis reached its peak. The 2026 season warrants the same proactive posture.

*Cache County dairy and alfalfa producers are encouraged to stay in close contact with the Cache County Water District, local canal companies, and USU Extension for ongoing local guidance as conditions evolve.*

Data Sources: NRCS SNOTEL network (8 stations), USGS National Water Information System (7 gauges), National Weather Service seasonal outlooks

Data Current As Of: SNOTEL data through May 14, 2026; USGS streamflow data through May 15, 2026

Important Disclaimers: This brief provides automated analysis for informational purposes only. Specific numerical claims have not been independently verified. Consult official sources including your local water district, Utah Division of Water Rights, and U.S. Bureau of Reclamation for regulatory decisions and water rights administration.