Sevier County Water Intelligence Brief

August 3, 2026 | Free-Tier Brief

Situation Summary

The Sevier River Basin enters August 2026 in a late-season supply posture defined by the extraordinary early meltout of the 2026 snowpack, with SNOTEL stations melting out 4–6 weeks ahead of the historical median meltout date and streamflows on a falling trend across most active gauges. With snowmelt-driven recharge effectively complete, irrigation supply for the remainder of the season depends on stored water and residual baseflows. Reservoir storage data and 7-day forecast details are available in the full brief.

Snowpack Conditions

Farnsworth Lake SNOTEL Station (reading: August 2, 2026)

Snow Water Equivalent: 0.1" | Snow Depth: 0.0"

The Farnsworth Lake station is reporting trace SWE with no measurable snow depth, consistent with full seasonal meltout. No percent-of-median figure is shown for this date, which indicates the median SWE for this point in the calendar is also 0.0" — the station is at its normal seasonal condition for early August. The meaningful signal for 2026 is not current snowpack depth but meltout timing: across the Mountain West, including this basin, snowpack melted out approximately 4–6 weeks ahead of the historical median meltout date, driven by an anomalous March heat wave. That early meltout means the pulse of snowmelt-driven streamflow that typically extends into June and early July arrived and passed well ahead of schedule, compressing the high-flow recharge window for reservoirs and soil moisture.

Streamflow Conditions

Active USGS gauges across the Sevier River Basin show a mixed picture of low to moderate flows, with a predominantly falling trend.

Manti Creek Below Dugway Creek, near Manti, UT

5 cfs | Falling | July 31, 2026

Manti Creek is reporting 5 cfs on a falling trend as of July 31. This is a small tributary flow reflecting late-season baseflow conditions in the upper Sanpete/Sevier drainage. The falling trend is consistent with seasonal pattern following meltout.

Sevier River at Hatch, UT

42 cfs | Falling | August 3, 2026

The upper Sevier at Hatch is running 42 cfs on a falling trend. This gauge represents headwater contributions from the Panguitch and Hatch area drainages and is one of the key indicators of supply entering the upper reservoir system.

Sevier River near Kingston, UT

4 cfs | Falling | August 3, 2026

The Kingston gauge — representing mid-basin conditions on the Sevier — is reporting only 4 cfs on a falling trend. This notably low reading reflects significant consumptive use and diversion between Hatch and Kingston, and indicates very limited unappropriated flow in this reach during peak irrigation demand.

Sevier River near Lynndyl, UT

229 cfs | Stable | August 3, 2026

The Lynndyl gauge at the lower end of the basin is reporting 229 cfs on a stable trend. This gauge reflects managed releases from upstream reservoir storage rather than direct runoff conditions, and its stability amid falling upper-basin flows suggests active reservoir management is sustaining downstream deliveries at this time.

Sevier River near Sigurd, UT

No recent flow data available.

The Sigurd gauge — which would provide important mid-basin context between Kingston and Lynndyl — is currently reporting no recent data. Users dependent on flows in the Sigurd reach should contact their water district or consult Utah Division of Water Resources directly for current conditions.

Seasonal Guidance

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

Data Sources: SNOTEL data through August 2, 2026; USGS streamflow data through August 3, 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, Utah Division of Water Rights, and U.S. Bureau of Reclamation for regulatory decisions and water rights administration.