Gooding County, ID — Water Intelligence Brief

June 22, 2026 | Free-Tier Edition

Situation Summary

Gooding County's 2026 water supply picture is defined by an early-melt season — Big Wood River headwater snowpack melted out 4–6 weeks ahead of the historical median meltout date, accelerating tributary inflows to the Snake River earlier in the season than typical. ESPA spring discharge, the critical supply variable for Hagerman Valley trout aquaculture, continues to flow at the Malad River near Gooding gauge, though the trend direction warrants monitoring. Reservoir storage data and 7-day forecast details are available in the full brief.

Snowpack Conditions

Galena Summit (490:ID:SNTL) — June 21, 2026

Snow water equivalent: 0.0" | Snow depth: 0.0"

Galena Summit, the primary SNOTEL station monitoring Big Wood River headwaters in the Sawtooth Range, is fully melted out as of June 21. No percent-of-median figure is available for this date, which is consistent with normal seasonal conditions — the median SWE at this station is also 0.0" at this point in the calendar. The meaningful signal for 2026 is not today's reading but the timing of meltout: the Big Wood River system shed its snowpack approximately 4–6 weeks ahead of the historical median meltout date, driven by the anomalous March heat wave that affected the broader Mountain West.

For Gooding County irrigators and trout aquaculture operators, the practical consequence of early meltout is that the snowmelt pulse driving Big Wood River tributary inflows to the Snake River has already passed. There is no remaining snowpack reservoir to sustain late-June or July tributary contributions from the Wood River system.

Streamflow Conditions

Malad River near Gooding, ID (USGS 13152500) — June 22, 2026

Current flow: 53 cfs | Trend: Falling

The Malad River near Gooding is the primary indicator of ESPA spring discharge for the Hagerman Valley. Unlike snowmelt-driven rivers, Malad River flows reflect Eastern Snake Plain Aquifer water levels and Thousand Springs complex discharge rates rather than seasonal precipitation or runoff timing — this gauge behaves fundamentally differently from the snowmelt-governed rivers elsewhere in the Magic Valley corridor.

At 53 cfs and falling, the gauge is providing a real-time signal of ESPA spring output at the western end of the Magic Valley corridor. The falling trend is the key operational data point for this brief period. For Hagerman Valley trout aquaculture operators, who depend on steady, consistent spring water flow rates from Thousand Springs to maintain raceway conditions and fish health, any sustained downward trend in this gauge warrants close attention. Trout farms hold separate IDWR spring water appropriations distinct from canal irrigation rights — their supply exposure is to ESPA spring discharge decline, not to Milner Dam diversion curtailment.

For dairy operations and alfalfa producers receiving Snake River canal deliveries, the Snake River mainstem context is inherited from upstream gauges at Milner and Twin Falls. With Galena Summit fully melted out and no remaining Big Wood River tributary snowpack, the incremental tributary contribution from the Wood River system to the Snake near Gooding has effectively concluded for the season.

Seasonal Guidance

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Data Sources: SNOTEL data through June 21, 2026; USGS streamflow data through June 22, 2026. Data provided by NRCS SNOTEL network and USGS National Water Information System.

Data Current As Of: June 22, 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 (IDWR — administers Water District 36, the middle Snake River and tributary water rights; also administers separate spring water appropriations for Hagerman Valley trout aquaculture and dairy operations), Idaho Department of Fish and Game (co-manages Thousand Springs State Park area), and U.S. Bureau of Reclamation, Pacific Northwest Region (Boise office — upstream context), for all regulatory decisions and water rights administration.