Davis County Water Intelligence Brief

October 19, 2026 | Weber River Basin

Situation Summary

Canyon creek flows in Davis County are falling as the region transitions into dormant-season conditions, and Weber Basin Water Conservancy District (WBWCD) project water deliveries via the Davis Aqueduct remain the county's primary supply mechanism for its roughly 370,000 residents. With irrigation demand winding down across the western bench, municipal and suburban providers are the relevant operational audience as the system moves toward winter recharge and storage accounting. Reservoir storage data and 7-day forecast details are available in the full brief.

Snowpack Conditions

Both SNOTEL stations serving the Farmington drainage are reporting baseline end-of-season readings:

These readings are normal for mid-October — the historical median SWE for both stations at this point in the calendar is also 0.0", so current conditions do not indicate a below-normal snowpack status. The relevant 2026 signal is not today's reading but meltout timing: both stations melted out approximately 4–6 weeks ahead of the historical median meltout date, driven by an anomalous March heat wave across the Mountain West. That early meltout accelerated runoff timing into spring and reduced late-season streamflow persistence — conditions that have now resolved into a normal autumn baseline. Season-opening snowpack accumulation typically begins in November; municipal providers and WBWCD planners will want to monitor first significant accumulation events at these stations as indicators of next year's supply trajectory.

Streamflow Conditions

Local canyon creek gauges confirm late-season falling limb conditions consistent with post-irrigation-season transition:

These flows are within the low end of expected late-October baseflow range for small Wasatch Front drainages. As a reminder, Farmington Creek and Kays Creek are supplemental local sources and snowmelt timing indicators — they are not Davis County's primary water supply. WBWCD project water delivered via the Davis Aqueduct is the principal supply mechanism for the county's municipal and suburban providers.

The broader Weber River Basin context:

The Weber River mainstem at Gateway reflects upstream drainage conditions above the main WBWCD reservoir system. At 54 cfs and falling, late-season natural flows are modest, consistent with a post-runoff, pre-snowpack period. This gauge provides context for the upstream basin WBWCD manages, though operational deliveries to Davis County are governed by stored project water, not real-time mainstem flows at this location.

Farmington Bay (Great Salt Lake) receives drainage from Davis County's canyon creeks and agricultural return flows. Current low-flow conditions mean minimal late-season inflow contribution to Farmington Bay from local drainages — an ecologically relevant consideration as Great Salt Lake elevation management continues to be a statewide priority.

Seasonal Guidance

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

Data Sources: SNOTEL data through October 18, 2026; USGS streamflow data through October 19, 2026

Data Current As Of: October 19, 2026

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 — primary water authority delivering Weber Basin Project water to Davis County via the Davis Aqueduct), Davis & Weber Counties Canal Company, and Utah Division of Water Rights for regulatory decisions and water rights administration.