Water Intelligence Brief · Archive

Sanpete County, UT

June 29, 2026

Sanpete County Water Intelligence Brief

June 29, 2026 | Sevier River Basin | Free-Tier Edition

Situation Summary

Snowpack across the Sevier River Basin monitoring network has fully melted out, with SNOTEL stations recording 0.0" SWE — a condition consistent with normal late-June readings, though the 2026 season was defined by meltout occurring 4–6 weeks ahead of the historical median meltout date. Streamflow at in-county and basin gauges reflects that early runoff pulse, with flows now stabilizing or falling across most reporting points. Reservoir storage data, 7-day forecast details, and depletion trend analysis are available in the full brief.

Snowpack Conditions

All six SNOTEL stations in the Sevier River Basin monitoring network are reporting at or near 0.0" snow water equivalent (SWE) as of June 28, 2026 — the expected condition for this point in the calendar year.

  • Beaver Dams: SWE 0.1", snow depth 0.0"
  • GBRC HQ: SWE 0.0", snow depth 1.0"
  • GBRC Meadows: SWE 0.0", snow depth 0.0"
  • Mammoth-Cottonwood: SWE 0.0", snow depth 0.0"
  • Mt. Baldy: SWE 0.0", snow depth 0.0"
  • Thistle Flat: SWE not available, snow depth 1.0"

    • The 0.0" SWE readings at most stations are consistent with normal late-June conditions — when the seasonal median SWE for these dates is also 0.0", a reading of 0.0" reflects expected seasonal conditions rather than a below-normal deficit. The residual snow depth readings at GBRC HQ (1.0") and Thistle Flat (1.0") without corresponding SWE likely indicate instrument artifacts or remnant settled snow with negligible water content.

    The critical supply signal for 2026 is not today's snowpack reading but meltout timing: basin stations melted out 4–6 weeks ahead of the historical median meltout date, driven by an anomalous March heat wave across the Mountain West. That early meltout compressed the spring runoff window and reduced the duration of snowmelt-sustained streamflow. No additional snowmelt-driven recharge to streams or reservoirs should be anticipated for the remainder of the season.

    Streamflow Conditions

    Five USGS gauges provide streamflow context for Sanpete County and the broader Sevier River Basin as of June 29, 2026.

    In-County:

  • Manti Creek Below Dugway Creek, near Manti (Sevier River Basin): 9 cfs, stable. Manti Creek is the only active USGS streamflow gauge within Sanpete County and serves as the primary in-county surface water indicator. A stable 9 cfs reading at this late-June date reflects baseflow conditions following the early-season runoff. For additional local monitoring context beyond this single gauge, contact the Sanpete Water Conservancy District — no active gauge exists on the San Pitch River mainstem, which represents a known data gap for county water managers.

    • Basin Context (adjacent gauges):

  • Sevier River at Hatch, UT: 52 cfs, stable. Reflects upper Sevier Basin conditions from the southern headwaters.
  • Sevier River near Kingston, UT: 4 cfs, rising. A rising trend at Kingston is notable at this stage of the season and warrants monitoring; local factors or tributary contributions may be influencing this reading.
  • Sevier River near Lynndyl, UT: 344 cfs, falling. The Lynndyl gauge integrates flows from much of the Sevier system and reflects the broader basin water budget. The falling trend at this downstream location is consistent with post-peak runoff recession.
  • Sevier River near Sigurd, UT: No recent flow data available.

    • The absence of data at Sigurd limits visibility into the mid-basin reach between the upper Sevier gauges and Lynndyl. Operators and water managers dependent on flows through the Sigurd reach should contact the Utah Division of Water Resources or USGS Utah Water Science Center for current conditions.

    Seasonal Guidance

  • Contact the Sanpete Water Conservancy District to check on current local delivery schedules, San Pitch River monitoring status, and any active water sharing or conservation measures for the remainder of the irrigation season.
  • Check with the Utah Division of Water Resources (water.utah.gov) for current storage status at Gunnison Reservoir, Piute Reservoir, and Yuba Lake/Sevier Bridge Reservoir, which serve Sanpete County irrigators.
  • Contact the Utah State Engineer's Office / Utah Division of Water Rights (waterrights.utah.gov) regarding water right priority and any active administrative actions on the Sevier River system.
  • Check with the Sevier River Water Users Association for current operational status of Piute Reservoir deliveries via the Sevier Valley–Piute Canal, which serves Sanpete County hay and livestock operations.

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

    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 Resources, and Utah Division of Water Rights for regulatory decisions and water rights administration.

    Data & Disclaimers

    Sources: NRCS SNOTEL network · USGS National Water Information System · National Weather Service

    This brief provides automated analysis for informational purposes only. Consult official sources including your local water district and state Division of Water Rights for regulatory decisions. This document does not constitute legal, regulatory, or engineering advice.

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