Sevier County Water Intelligence Brief

June 8, 2026 | Free-Tier Edition

Situation Summary

Snowpack across the Sevier River Basin has fully melted out, with the Farnsworth Lake SNOTEL station recording 0.0" SWE — a condition that arrived 4–6 weeks ahead of the historical median meltout date, meaning the basin's seasonal snowmelt pulse has already passed. Streamflow readings across the basin reflect this early-melt pattern, with gauges on the Sevier River mainstem showing falling or stable but modest flows as the system transitions into its summer low-flow period. Reservoir storage data and 7-day forecast details are available in the full brief.

Snowpack Conditions

The sole SNOTEL station reporting for Sevier County's portion of the Sevier River Basin is Farnsworth Lake, which recorded 0.0" snow water equivalent (SWE) and 0.0" snow depth as of June 7, 2026. No percent-of-median figure is applicable at this date, as the seasonal median SWE for early June is also 0.0" — this station is at its normal condition for this point in the calendar year. The meaningful signal is timing: driven by an anomalous March heat wave, this station melted out 4–6 weeks ahead of its historical median meltout date. The snowpack-fed recharge window for the 2026 irrigation season has closed.

Streamflow Conditions

Five USGS gauges provide coverage across the Sevier River Basin, with mixed data availability as of June 8, 2026:

The pattern across active gauges is predominantly falling flows, consistent with a basin past its peak runoff period. The Kingston gauge at 7 cfs reflects notably low mainstem flow in the mid-basin reach. The Lynndyl gauge at 158 cfs remains stable and represents the lower basin, where upstream reservoir releases and return flows can influence readings. The absence of recent data at the Sigurd gauge represents a monitoring gap for users in that reach of the valley.

Seasonal Guidance

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Data Sources: SNOTEL data through June 7, 2026; USGS streamflow data through June 8, 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, U.S. Bureau of Reclamation, and Utah Division of Water Rights for regulatory decisions and water rights administration.