Juab County Water Intelligence Brief

Eastern Juab Valley Agricultural Area — October 5, 2026

Situation Summary

Salt Creek at Nephi is running at 2 cfs and falling, with the gauge below the Nephi Powerplant diversion reading a stable 4 cfs — conditions consistent with the tail end of the irrigation season and minimal active snowmelt contribution from Mount Nebo. Local irrigators in the Nephi, Mona, and Levan corridor should treat current flows as near-seasonal-floor levels, with no significant natural recharge expected until winter snowpack begins to accumulate. Reservoir storage data and 7-day forecast details are available in the full brief.

Snowpack Conditions

No SNOTEL stations are active within Juab County. Mount Nebo (11,928 ft), the highest peak in the Wasatch Range and the primary snowmelt source for Salt Creek and Currant Creek, has no in-county snowpack monitoring infrastructure. This is a known data gap. Local irrigators should consult the Payson R.S. SNOTEL station in neighboring Utah County to the north, and contact the Utah Division of Water Resources for seasonal assessments relevant to the Salt Creek watershed.

For context: the 2026 season was characterized by an anomalous March heat wave that caused snowpack across the region to melt out 4–6 weeks ahead of the historical median meltout date. At this point in the calendar — early October — SWE readings at regional stations are at their normal seasonal floor of 0.0", reflecting standard late-season conditions rather than any current deficit. The operative question for Juab County irrigators is not today's snowpack reading but when meaningful new accumulation begins on Mount Nebo ahead of the 2027 season.

Streamflow Conditions

Salt Creek at Nephi, UT — 2 cfs, falling (10/05)

This is the primary supply indicator for Nephi-area agriculture. At 2 cfs and trending downward, Salt Creek is delivering at or near seasonal minimum. Irrigators drawing from Salt Creek should expect little to no increase in natural flow in the near term.

Salt Creek Below Nephi Powerplant Diversion, Nr Nephi, UT — 4 cfs, stable (10/05)

The higher reading below the powerplant diversion reflects return flows and system structure rather than additional watershed input. The stable trend suggests no acute change in the delivery configuration at this time.

Currant Creek Near Mona, UT — 0 cfs, rising (10/04)

Currant Creek is effectively dry at the Mona gauge, though the rising trend signal warrants monitoring. At this point in the season, any increase is likely minor.

Sevier River Near Juab, UT — 1 cfs, falling (10/05)

This gauge reflects conditions at Yuba Lake and represents the full upstream Sevier River basin (over 5,000 square miles) — it is a regional indicator, not a local Juab County supply signal. The very low reading is consistent with late-season basin conditions.

*Additional basin-context gauges outside Juab County:*

Manti Creek Below Dugway Creek, Nr Manti, UT — 2 cfs, stable (10/05); Sevier River Near Lynndyl, UT — 13 cfs, rising (10/05); Sevier River Near Kingston, UT — 10 cfs, rising (10/05); Sevier River at Hatch, UT — 43 cfs, stable (10/05); Sevier River Near Sigurd, UT — no recent data. These readings reflect conditions across the broader Sevier basin and are provided for regional context only.

Seasonal Guidance

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Data Sources: SNOTEL data through October 4, 2026; USGS streamflow data through October 5, 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.