Water Intelligence Brief · Archive

Juab County, UT

September 7, 2026

Juab County Water Intelligence Brief

Eastern Juab Valley Agricultural Corridor — September 7, 2026


Situation Summary

Salt Creek at Nephi is running at 3 cfs and falling, with flows just below the powerplant diversion point reading 4 cfs and stable — direct diversion supply for Nephi-area hay and alfalfa growers is at late-season lows with no improvement expected as the irrigation season winds down. Currant Creek near Mona has dropped to zero, ending meaningful delivery from that source for the season. 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. This is a known data gap — local irrigators should consult the Payson Ranger Station SNOTEL (Utah County, to the north) and the Utah Division of Water Resources for seasonal snowpack context.

For the 2026 season: an anomalous March heat wave drove snowpack meltout 4–6 weeks ahead of the historical median meltout date across the region. By this point in September, all local snowpack has been gone for months — current streamflow reflects residual baseflow only, not active melt contribution.


Streamflow Conditions

Salt Creek at Nephi, UT: 3 cfs, falling. This is the primary supply indicator for eastern Juab Valley irrigators and reflects current watershed runoff available from the Salt Creek drainage above Nephi.

Salt Creek below Nephi Powerplant Diversion, nr Nephi, UT: 4 cfs, stable. Slightly higher reading below the diversion point; conditions appear stable at this location.

Currant Creek near Mona, UT: 0 cfs, falling. This source has effectively ceased for the season.

Sevier River near Juab, UT: 1 cfs, falling. This gauge reflects conditions at Yuba Lake, representing the full upstream Sevier basin (over 5,000 square miles) — use for regional context only, not as a local Juab County supply indicator.

For broader basin reference: the Sevier River at Hatch is running 47 cfs (rising), near Lynndyl at 22 cfs (falling), and near Kingston at 8 cfs (falling). Manti Creek below Dugway Creek near Manti is at 3 cfs, falling.


Seasonal Guidance

  • Contact Nephi Irrigation Company directly to confirm remaining delivery schedule and any end-of-season curtailment dates for your headgate.
  • Check the Utah Division of Water Resources (waterresources.utah.gov) for Mount Nebo watershed seasonal runoff summaries and Yuba Lake / Sevier Bridge Reservoir storage status.
  • Verify current water right standing and any late-season administration actions with the Utah Division of Water Rights (waterrights.utah.gov or the Spanish Fork field office).
  • Monitor the USGS National Water Information System (waterdata.usgs.gov) gauge for Salt Creek at Nephi (site 10146000) for daily flow updates through the remainder of the season.

  • Subscribe for the full brief including reservoir storage, weather forecasts, depletion analysis, and detailed operational recommendations.


    Data Sources: SNOTEL data through September 6, 2026; USGS streamflow data through September 7, 2026

    Data Current As Of: September 7, 2026 — 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 all regulatory decisions and water rights administration.

    Data & Disclaimers

    Sources: NRCS SNOTEL network · USGS National Water Information System · National Weather Service

    This brief provides automated analysis for informational purposes only. Consult official sources including your local water district and state Division of Water Rights for regulatory decisions. This document does not constitute legal, regulatory, or engineering advice.

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