Summit County, UT — Water Intelligence Brief

August 24, 2026 | Free Tier

Situation Summary

Summit County occupies a rare dual-headwaters position in Utah water geography: the Weber River system originates here, flowing north and west through Echo and Rockport Reservoirs toward the WBWCD delivery network, while the upper Provo River drains east through Kamas Valley before leaving the county toward Jordanelle Reservoir in Wasatch County. The defining condition of 2026 is not what snowpack looks like today — all four in-county SNOTEL stations are at zero, which is normal for late August — but rather that snowmelt ran out 4–6 weeks earlier than the historical median meltout date, compressing the runoff window and reducing the total seasonal water volume entering both reservoir systems. Reservoir storage data and 7-day forecast details are available in the full brief.

Snowpack Conditions

All four in-county SNOTEL stations are reporting 0.0 inches of snow water equivalent (SWE) and 0.0 inches of snow depth as of August 23, 2026. This is the expected seasonal condition for late August — the median SWE for each of these stations on this date is also 0.0 inches, so current readings do not indicate a below-normal snowpack condition relative to today's calendar position.

The meaningful signal is timing, not current depth. On the Weber River side, Chalk Creek #1 (9,160 ft) and Chalk Creek #2 (8,200 ft) monitor snowpack in the upper Chalk Creek drainage above Coalville — both stations melted out 4–6 weeks ahead of the historical median meltout date this season. On the Provo River side, Trial Lake and Beaver Divide — both physically located in Summit County's upper Provo headwaters — show the same early-meltout pattern. The consequence of early meltout is a shortened runoff pulse: peak flows arrived earlier, recession began earlier, and late-summer baseflows reflect a system that has been drawing down longer than a normal year would allow.

Streamflow Conditions

Summit County's gauges tell a consistent late-season story across both watersheds, with the Weber system showing active decline and the Provo side holding at a stable but modest level.

Weber Basin — Integrator Gauge:

The Weber River at Echo (10132000) — the primary integrator of all upper Weber River flow entering the WBWCD reservoir system — is reading 283 cfs and falling as of August 24. This gauge captures what Summit County is delivering to Echo Reservoir and, by extension, to the broader WBWCD system serving Weber, Davis, and Morgan counties. A falling trend at this gauge at this point in the season warrants attention from downstream water managers.

Weber Basin — Mainstem and Tributaries:

Provo Basin:

Provo River near Woodland (10154200) — Summit County's contribution to the Provo system before it crosses into Wasatch County toward Jordanelle — is reading 36 cfs, stable as of August 24. This is the flow leaving Summit County. Kamas Valley irrigators and downstream Jordanelle operations should note this as the current upper basin delivery rate.

Seasonal Guidance

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

Data Sources: SNOTEL data through August 23, 2026; USGS streamflow data through August 24, 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, Weber Basin Water Conservancy District (WBWCD — operates Echo Reservoir and Rockport Reservoir, both physically located in Summit County), U.S. Bureau of Reclamation (Upper Colorado Region), Park City Municipal Corporation (municipal water for Park City and Snyderville Basin), Summit Water Distribution Company (Kamas Valley), Provo River Water Users Association (upper Provo River allocation), and Utah Division of Water Rights for regulatory decisions and water rights administration.