Juab County Water Intelligence Brief

Eastern Juab Valley Agricultural Corridor | August 3, 2026

Situation Summary

Salt Creek is flowing at low late-season levels as of August 3, reflecting normal seasonal drawdown following an exceptionally early snowmelt year — Mount Nebo snowpack melted out 4–6 weeks ahead of the historical median meltout date, compressing the runoff window that local hay and alfalfa producers depend on. Local irrigation supplies are in the critical late-summer period, and producers should plan accordingly for reduced streamflow through the remainder of the season. Reservoir storage data and 7-day forecast details are available in the full brief.

Snowpack Conditions

Mount Nebo (11,928 ft) is the highest peak in the Wasatch Range and the primary snowmelt source for Salt Creek and Currant Creek — the two streams that sustain eastern Juab Valley agriculture. Juab County has no active SNOTEL station. There is no in-county snowpack monitoring infrastructure, which is a meaningful data gap for local irrigators.

What is known for the 2026 season: snowpack across the broader Wasatch and central Utah mountains melted out approximately 4–6 weeks ahead of the historical median meltout date, driven by an anomalous March heat wave. For Juab County irrigators, this means the Mount Nebo snowpack that normally sustains Salt Creek flows into June and July was largely exhausted well ahead of schedule. By early August, no meaningful snowpack contribution to local streamflow should be expected — this is consistent with the falling trend observed at the Salt Creek gauge.

Monitoring gap advisory: Local irrigators should consult the Payson Ranger Station SNOTEL site (Utah County, to the north of Mount Nebo) for the closest available snowpack reference data, and contact the Utah Division of Water Resources for seasonal snowpack assessments relevant to the Salt Creek watershed. There is no substitute for an in-county monitoring station, and this gap limits early-season supply forecasting for Juab Valley producers.

Streamflow Conditions

Salt Creek at Nephi (primary local indicator): 2 cfs, falling, as of August 3. This is the defining supply signal for Nephi-area agriculture. A falling trend at 2 cfs reflects classic late-season conditions following an early-melt year — the snowpack-driven pulse is long past, and flows are sustained only by baseflow and any residual groundwater contribution from the Salt Creek watershed. Producers diverting from Salt Creek should expect continued low or declining flows.

Salt Creek Below Nephi Powerplant Diversion: 4 cfs, falling, as of August 3. The higher reading below the powerplant diversion reflects return flows or additional tributary inputs entering the system below the Nephi gauge. Both readings confirm low and declining conditions on Salt Creek.

Currant Creek near Mona: 2 cfs, rising, as of August 3. The rising trend on Currant Creek is a modest positive signal and distinguishes it from Salt Creek's falling pattern — however, at 2 cfs, absolute flows remain low. Producers with Currant Creek rights should monitor this trend closely.

Sevier River near Juab: 262 cfs, stable, as of August 3. This gauge reflects the full Sevier River system (approximately 5,165 square miles of upstream watershed) arriving at Yuba Lake. It is not a Juab County local supply indicator — it reflects basin-wide conditions from Sanpete, Sevier, and Piute counties upstream. Noted here for regional context only.

Sevier River near Lynndyl: 229 cfs, stable. Downstream of Yuba Lake; confirms stable regional basin routing.

Manti Creek, Sevier River at Hatch, near Kingston, and near Sigurd gauges reflect upstream or adjacent basin conditions with no direct bearing on eastern Juab Valley irrigation supply.

Seasonal Guidance

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Data Sources: SNOTEL data through August 2, 2026; USGS streamflow data through August 3, 2026

Data Current As Of: Utah Division of Water Rights

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 (primary regulator for all Juab County water rights), Utah Division of Water Resources (for Yuba Lake / Sevier Bridge Reservoir storage data), and local irrigation companies including Nephi Irrigation Company, for regulatory decisions and water rights administration.