Juab County Water Intelligence Brief

Eastern Juab Valley Agricultural Corridor | August 31, 2026

Situation Summary

Salt Creek at Nephi is running at 4–5 cfs and rising this week, providing modest but active late-season flow to local irrigators in the Nephi, Mona, and Levan corridor. Currant Creek near Mona is similarly rising at 2 cfs, signaling continued — if limited — runoff contribution from the Mount Nebo watershed. With the irrigation season in its final weeks, rising flow trends are a mildly positive signal, though late-August volumes remain at the low end of what hay and alfalfa producers need for final cuttings. Reservoir storage data and 7-day forecast details are available in the full brief.

Snowpack Conditions

Monitoring gap — no in-county SNOTEL data available. There is no active SNOTEL station on or near Mount Nebo (11,928 ft) or elsewhere in Juab County. This is a known limitation of the local monitoring network. Mount Nebo sits directly above the eastern Juab Valley and is the primary snowmelt source for both Salt Creek and Currant Creek — yet no automated snowpack data exists for the peak or its immediate drainages.

As of August 31, current SWE at all regional SNOTEL stations reads 0.0" — which is the normal seasonal condition for this date, not a below-normal signal. Snowpack at this point in the calendar has fully melted out across the Wasatch Range. What matters for 2026 context is *when* meltout occurred: across the Mountain West, snowpack melted out 4–6 weeks ahead of the historical median meltout date, driven by an anomalous March heat wave. For Juab County irrigators, that means the bulk of Mount Nebo's snowmelt pulse arrived and passed earlier than typical, compressing the spring delivery window.

For current snowpack assessments, consult neighboring SNOTEL data (Payson Ranger Station, Utah County, to the north) via the NRCS Water and Climate Center, and contact the Utah Division of Water Resources for seasonal analysis relevant to the Salt Creek watershed.

Streamflow Conditions

Salt Creek at Nephi (primary local indicator): 4 cfs, rising. This is the gauge that directly reflects Mount Nebo melt and Salt Creek watershed runoff reaching Nephi-area irrigators. A rising trend at the end of August is modest but notable — likely reflecting recent precipitation or residual late-season drainage from the upper watershed rather than snowmelt.

Salt Creek below Nephi Powerplant Diversion: 5 cfs, rising. Slightly higher than the above-diversion reading, consistent with powerplant return flows joining the channel. Both Salt Creek gauges are trending in the same direction, reinforcing the rising signal.

Currant Creek near Mona: 2 cfs, rising. Currant Creek provides secondary flow to the Mona area and is also trending upward, which is a positive late-season signal for irrigators in that sub-area.

Sevier River near Juab (regional context only): 1 cfs, rising. This gauge reflects conditions across the entire upstream Sevier River system — roughly 5,100 square miles of basin — as water approaches Yuba Lake. It is not a local Juab County supply indicator; treat it as regional basin context only.

Additional Sevier basin gauges for broader context: Sevier River near Lynndyl at 79 cfs (falling), Sevier River at Hatch at 41 cfs (stable), Sevier River near Kingston at 9 cfs (rising), Manti Creek below Dugway near Manti at 4 cfs (stable). These gauges reflect conditions in adjacent Sanpete and Sevier counties and are provided for basin-wide reference.

Seasonal Guidance

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Data Sources: SNOTEL data through August 30, 2026; USGS streamflow data through August 31, 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.