Franklin County, ID — Agricultural Water Intelligence Brief

Issued: April 27, 2026

1. Situation Summary

Franklin County agricultural water users are entering the 2026 irrigation season facing a significantly below-normal water supply outlook. Snowpack across the Bear River Basin is severely depleted following what has been characterized as one of the worst snow years on record in the Mountain West, compounded by an extreme March heat wave that drove exceptionally early snowmelt. While a small number of higher-elevation SNOTEL stations retain meaningful snowpack, the majority of monitoring points are at or near zero — well ahead of typical melt-out timing. Streamflow conditions are mixed, with some gauges showing active runoff while others reflect already-diminished seasonal contributions. Water managers, irrigators, and canal companies should anticipate a compressed and potentially constrained irrigation season and plan accordingly.

2. Snowpack Conditions

Snowpack across the Bear River Basin is highly variable by elevation but overwhelmingly below normal overall.

The lower- and mid-elevation stations have largely lost their snowpack entirely. Bear River RS and Slug Creek Divide both report 0.0 inches SWE — representing 0% of their respective medians of 1.2" and 8.2". Emigrant Summit records just 0.3" SWE (1% of its 19.6" median), effectively snowless. Garden City Summit holds 0.8" SWE (5% of its 13.6" median), with only 5.0 inches of snow depth remaining.

The upper-elevation stations offer a modestly more encouraging picture but remain well below normal. Franklin Basin reports 14.0" SWE (56% of its 24.8" median) with 31.0 inches of depth. Tony Grove Lake shows 16.8" SWE (54% of its 31.1" median) at 42.0 inches depth. USU Doc Daniel is the strongest station in the network at 20.5" SWE (70% of its 29.0" median) with 59.0 inches of depth.

Taken together, the basin-wide picture is one of severely depleted seasonal storage. The snowpack that remains is concentrated at the highest elevations, and those reserves — while meaningful — are not sufficient to offset the dramatic deficits across the broader basin. Melt contribution to streamflow will be shorter in duration and lower in volume than a normal year.

3. Streamflow Conditions

Current streamflow readings reflect a basin in active but uneven runoff conditions.

Bear River at Border, WY is reporting 158 cfs and rising as of April 27, suggesting upper basin contributions are still arriving. Downstream, Bear River near Corinne, UT records 923 cfs but is falling, indicating the peak pulse of runoff may already be passing through the lower system. Logan River above State Dam reads 264 cfs (stable), and Little Bear River at Paradise, UT shows 119 cfs and rising. Blacksmith Fork is holding at 81 cfs (stable). The Malad River near Bear River City, UT is at a low 6 cfs.

Notably, Bear River Below Stewart Dam near Montpelier, ID — a gauge directly relevant to Franklin County — has no recent flow data available, which limits local situational awareness. Water managers should seek direct contact with the operating entity or Idaho Department of Water Resources for current conditions at that location.

The falling trend at the Corinne gauge, combined with exhausted low-elevation snowpack, suggests that the primary runoff pulse for many portions of the system may be peaking or past peak earlier than normal.

4. Key Reservoir Systems

Franklin County agricultural water users draw primarily from the Bear River system. Relevant storage infrastructure in the regional basin includes:

Current storage figures are not included in this brief. Users are strongly encouraged to contact the U.S. Bureau of Reclamation and their respective canal or water district for current reservoir storage status, as those figures are critical inputs for seasonal planning.

5. Water Rights Administration Outlook

Given significantly below-normal snowpack and early depletion across most of the Bear River Basin, there is a high likelihood of tightened water availability during the peak irrigation season. Franklin County users holding junior priority water rights under Idaho's prior appropriation system should be prepared for the possibility of curtailment notices from the Idaho Department of Water Resources (IDWR).

The Bear River is an interstate compact-administered system involving Idaho, Wyoming, and Utah. Compact administration and in-state priority calls can interact in ways that affect delivery timing and volume. Users should proactively contact IDWR and their local water district to understand where their rights fall within the priority structure and what administration actions may be anticipated.

This assessment does not predict specific curtailment outcomes, as those determinations rest with regulatory authorities based on real-time conditions and legal priority analysis.

6. Groundwater Considerations

Franklin County overlies the southern margin of the Eastern Snake Plain Aquifer (ESPA), one of the region's most significant groundwater resources. In below-normal surface water years, pressure on groundwater sources typically increases as irrigators seek supplemental supply. Users considering increased groundwater pumping should:

7. Management Recommendations

Immediate Actions (Now through Early May)

Planning Actions (Mid-Season Preparation)

Efficiency and Conservation Actions

8. Historical Context

The 2026 season draws meaningful comparisons to prior low-snowpack years in the Bear River region. 2021 brought significantly below-normal water supplies across southern Idaho and northern Utah, resulting in widespread agricultural adjustments, curtailment actions on junior rights holders, and reduced crop plantings in some areas. 2015 was marked by an exceptionally warm and dry winter across the Mountain West, prompting emergency water conservation measures and difficult allocation decisions across multiple river systems. 1977 remains one of the most severe drought years in regional memory, with extreme curtailments, significant economic impacts to irrigated agriculture, and long-term management changes that shaped subsequent water policy.

The current season's snowpack profile — with low-elevation stations exhausted and upper-elevation stations running at roughly half to two-thirds of normal — is consistent with the type of conditions that produced significant water supply stress in those analog years. Early action and proactive planning have historically been the most effective tools available to individual agricultural operations in navigating low-water seasons.

9. Required Footer Elements

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

Data Current As Of: SNOTEL data through April 26, 2026; USGS streamflow data through April 27, 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, Idaho Department of Water Resources, Wyoming State Engineer's Office, and U.S. Bureau of Reclamation for regulatory decisions and water rights administration.

*Next update scheduled upon availability of updated SNOTEL and USGS data. Users with urgent water supply questions should contact Idaho Department of Water Resources, Twin Falls Regional Office, or their local irrigation district directly.*