Juab County Water Intelligence Brief

Eastern Juab Valley Agricultural Corridor — June 29, 2026

Situation Summary

Salt Creek is running at 7–8 cfs and holding stable, providing the primary supply signal for Nephi-area irrigators as the season moves into peak demand. The 2026 water year is defined by an anomalous March heat wave that drove snowmelt 4–6 weeks ahead of the historical median meltout date across the region, meaning the seasonal snowpack pulse has already passed. 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 sits directly above the eastern Juab Valley, providing the primary snowmelt that recharges Salt Creek and Currant Creek. Juab County has no active SNOTEL station on or near Mount Nebo. This is a real monitoring gap — local irrigators cannot rely on in-county snowpack data and should consult the Payson Ranger Station SNOTEL (Utah County, to the north) and the Utah Division of Water Resources for any remaining seasonal snowpack assessments.

What is known for 2026: regional SNOTEL stations across the Wasatch and central Utah ranges melted out 4–6 weeks ahead of their historical median meltout dates, driven by the anomalous March heat event. At this point in late June, no meaningful snowpack reservoir remains to feed additional runoff pulses into Salt Creek. The melt-season supply contribution for 2026 is effectively complete. Irrigators should plan accordingly — what is in the stream and in local storage now reflects the full seasonal yield.

Streamflow Conditions

Salt Creek at Nephi, UT: 7 cfs, stable. This is the primary supply indicator for Nephi-area agriculture and directly reflects Mount Nebo watershed runoff available to local irrigators. Stable conditions suggest the channel is holding without significant new inflow or notable decline at this moment.

Salt Creek below Nephi Powerplant Diversion near Nephi, UT: 8 cfs, stable. The 1 cfs difference between the two Salt Creek readings reflects local routing and diversion dynamics through the Nephi reach.

Currant Creek near Mona, UT: 1 cfs, rising. A very modest flow for the Mona-area corridor. The rising trend is a minor positive signal but the absolute volume is low.

Manti Creek below Dugway Creek, near Manti, UT: 9 cfs, stable. Located in adjacent Sanpete County; provided here as basin context only.

Sevier River near Juab, UT: 262 cfs, falling. This gauge reflects the entire upstream Sevier River system — approximately 5,165 square miles of drainage — at Yuba Lake. It is not a Juab County supply indicator. It is cited here as regional basin context. The falling trend is consistent with post-melt seasonal decline across the broader basin.

Sevier River near Lynndyl, UT: 344 cfs, falling. Downstream of Yuba Lake; basin context only.

Other basin gauges (Sevier River at Hatch, near Kingston, near Sigurd; Manti Creek) reflect conditions well outside the eastern Juab Valley corridor and are not directly relevant to local irrigation decisions.

Seasonal Guidance

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Data Sources: SNOTEL data through June 28, 2026; USGS streamflow data through June 29, 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.