Sanpete County Water Intelligence Brief

June 8, 2026 | Sevier River Basin

Situation Summary

All six SNOTEL stations serving Sanpete County and the broader Sevier River Basin have fully melted out, with snowpack melting out 4–6 weeks ahead of the historical median meltout date — meaning the seasonal runoff pulse has largely concluded and streamflows are now in a falling trend across the basin. Water managers and irrigators should plan the remainder of the season around current reservoir storage positions and available direct-flow supply, with no meaningful additional snowmelt contribution expected. Reservoir storage data and 7-day forecast details are available in the full brief.

Snowpack Conditions

All six NRCS SNOTEL stations reporting for the Sanpete County area and Sevier River Basin recorded 0.0" snow water equivalent (SWE) and 0.0" snow depth as of June 7, 2026:

No percent-of-median figures are reported for any station, which reflects that the historical median SWE for this date is also 0.0" — these stations are at their normal seasonal condition for early June. The critical signal for 2026 is timing: an anomalous March heat wave drove meltout 4–6 weeks ahead of the historical median meltout date, compressing the runoff season and delivering peak flows significantly earlier than irrigation infrastructure and storage systems are typically positioned to capture. No further snowmelt contribution to streamflow or reservoir recharge is expected from any monitored station.

Streamflow Conditions

Manti Creek (USGS gauge: Manti Creek Below Dugway Creek, near Manti) is the only active in-county USGS streamflow gauge for Sanpete County and remains the primary local indicator. No active gauge exists on the San Pitch River mainstem, which represents a known monitoring gap — users seeking additional local streamflow context should contact the Sanpete Water Conservancy District directly.

Current gauge readings as of June 8, 2026:

Manti Creek is running at 11 cfs and falling, consistent with the post-meltout recession phase. The broader Sevier River Basin shows a mixed picture: the Hatch and Kingston gauges are both falling, while Lynndyl — the furthest downstream active gauge — is holding stable at 158 cfs, likely reflecting reservoir release management or lagged basin contributions. The absence of recent data at the Sigurd gauge represents an additional monitoring gap for mid-basin users. Falling trends on the upper and middle Sevier system are consistent with the early-meltout pattern and indicate that peak season flows have passed.

Seasonal Guidance

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

Data Sources: SNOTEL data through June 7, 2026; USGS streamflow data through June 8, 2026. NRCS SNOTEL network (6 stations), USGS National Water Information System (5 gauges).

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, U.S. Bureau of Reclamation, and Utah Division of Water Rights for regulatory decisions and water rights administration.