Juab County Water Intelligence Brief

Eastern Juab Valley Agricultural Corridor | September 28, 2026

Situation Summary

Salt Creek at Nephi is running at 3–4 cfs and holding stable, signaling that late-season baseflow conditions are in place for the Nephi/Mona/Levan corridor — deliveries are at or near their seasonal floor, and irrigators should plan accordingly as the irrigation season winds down. Currant Creek near Mona has dropped to zero, confirming that tributary supply to the east valley has effectively ended 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. Irrigators seeking snowpack information should consult the Payson Ranger Station SNOTEL site in neighboring Utah County to the north, or contact the Utah Division of Water Resources for current seasonal assessments.

At this point in the calendar — late September — all Wasatch Range stations are at 0.0" snow water equivalent, which is normal for this date. The relevant 2026 context is timing, not current readings: snowpack across the region melted out approximately 4–6 weeks ahead of the historical median meltout date, driven by an anomalous March heat wave. That early meltout accelerated the spring runoff pulse and compressed the irrigation delivery window. The current 0.0" readings reflect normal seasonal conditions, not an anomaly.

Streamflow Conditions

Salt Creek at Nephi (USGS): 3 cfs, stable (09/28). This is the primary supply indicator for Nephi-area agriculture. Stable but very low flow confirms the season is in its final stage. Salt Creek Below Nephi Powerplant Diversion is reading 4 cfs as of 09/27, consistent with the above-diversion reading.

Currant Creek near Mona: 0 cfs, falling (09/28). Tributary flow to the east valley has ceased. Irrigators relying on Currant Creek deliveries should treat supply from this source as finished for the season.

Manti Creek below Dugway Creek (Sanpete County): 2 cfs, stable (09/28). Provided for adjacent basin context only.

Sevier River near Juab (09/27): 60 cfs, rising. This gauge reflects the full upstream Sevier River system — approximately 5,165 square miles of contributing watershed — as it enters Yuba Lake. It is not a Juab County local supply indicator. The rising signal reflects basin-wide conditions upstream, not Salt Creek watershed dynamics. Note that the Sevier River near Lynndyl is reading 9 cfs and falling, while Sevier River near Juab is rising — the difference reflects Yuba Lake buffering dynamics.

Seasonal Guidance

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Data Sources: SNOTEL data through September 27, 2026; USGS streamflow data through September 28, 2026

Data Current As Of: September 28, 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, 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.