Sanpete County Water Intelligence Brief

June 15, 2026 | Sevier River Basin

Situation Summary

Snowpack across the Sevier River Basin monitoring network melted out 4–6 weeks ahead of the historical median meltout date, meaning the spring runoff pulse that typically sustains early-summer streamflows has already passed. All monitored SNOTEL stations are now at their normal seasonal readings for mid-June, but the basin entered this phase significantly earlier than usual, compressing the window for reservoir recharge and early-season irrigation supply. Reservoir storage data and 7-day forecast details are available in the full brief.

Snowpack Conditions

All six SNOTEL stations serving the Sevier River Basin are reporting zero snow water equivalent and zero snow depth as of June 14, 2026:

Zero SWE at all stations on June 15 is consistent with normal seasonal conditions for this point in the calendar — the median SWE for these stations at this date is also 0.0". The critical signal for 2026 is not current snowpack depth, but meltout timing: the basin's snowpack melted out 4–6 weeks earlier than the historical median meltout date, driven by the anomalous March heat wave reported across the Mountain West. That early departure means the spring runoff contribution to streamflows and storage occurred well ahead of schedule, and no additional snowmelt-driven supply is available for the remainder of the season.

Streamflow Conditions

Manti Creek at the Dugway Creek gauge (the only active USGS streamflow gauge within Sanpete County) is the primary in-county indicator. The Sevier River gauges in adjacent counties provide broader basin context. No active gauge exists on the San Pitch River mainstem — users should contact Sanpete Water Conservancy District for local monitoring data on that drainage.

In-County:

Sevier River Basin Context:

Manti Creek at 11 cfs and falling indicates that peak runoff has passed and flows are receding into the summer baseflow period. The falling trend at both Manti Creek and the Kingston gauge reflects the absence of ongoing snowmelt input following the early-season meltout. The Hatch gauge holding stable at 52 cfs suggests some persistence in upper basin contributions, though that signal should be interpreted cautiously given the broader falling trend across the network. The absence of recent data from the Sigurd gauge represents a monitoring gap at a key mid-basin location. The Lynndyl reading of 123 cfs falling reflects cumulative basin contributions and any reservoir release activity upstream — users relying on lower Sevier River deliveries should monitor this gauge closely as the season progresses.

Seasonal Guidance

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

Data Sources: SNOTEL data through June 14, 2026; USGS streamflow data through June 15, 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 Resources, and Utah Division of Water Rights for regulatory decisions and water rights administration.