Summit County, UT — Water Intelligence Brief

October 19, 2026 | Free-Tier Edition

Situation Summary

Summit County's dual-watershed streamflows are falling on both sides of the divide this week, with the upper Provo River near Woodland running at 93 cfs and the Weber system showing a wide range — from 1 cfs at Echo to 121 cfs near Oakley — as the irrigation season winds toward close. For Kamas Valley hay and livestock operators along the upper Provo corridor, current flows remain functional but the downward trajectory signals that the window for any remaining late-season irrigation is narrow. Reservoir storage data and 7-day forecast details are available in the full brief.

Snowpack Conditions

All four in-county SNOTEL stations recorded 0.0" snow water equivalent and 0.0" snow depth as of October 18 — a normal seasonal condition for this point in the calendar, as the historical median SWE for mid-October at these elevations is also 0.0".

| Station | SWE | Depth |

|---|---|---|

| Beaver Divide | 0.0" | 0.0" |

| Chalk Creek #1 (9,160 ft) | 0.0" | 0.0" |

| Chalk Creek #2 (8,200 ft) | 0.0" | 0.0" |

| Trial Lake | 0.0" | 0.0" |

Weber-side (Chalk Creek stations): The Chalk Creek stations monitor the upper Chalk Creek drainage above Coalville — the primary Weber River headwaters snowpack indicators for Summit County. No accumulation yet; the season's first meaningful snowpack typically builds through November. Notably, the 2026 season saw these stations melt out 4–6 weeks ahead of the historical median meltout date, driven by an anomalous March heat wave — a factor that shaped summer streamflow trajectory across both basins.

Provo-side (Beaver Divide and Trial Lake): These are Summit County's home stations monitoring the upper Provo River headwaters. Both read 0.0", consistent with normal mid-October conditions. First accumulation events typically arrive in earnest through late October into November.

No below-normal snowpack signal is present at any in-county station for this date. The meaningful snowpack story for Summit County will begin building over the next 4–6 weeks.

Streamflow Conditions

Summit County sits at the top of two river chains. Current gauge readings reflect what is leaving Summit County toward downstream systems — not what is arriving from elsewhere.

Weber Basin:

Provo Basin:

All gauges across both basins show falling trends, consistent with normal late-season recession and the absence of any new precipitation or snowmelt input.

Seasonal Guidance

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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 — 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.