Cache County Water Intelligence Brief

August 17, 2026 | Bear River Basin

Situation Summary

Cache County's snowpack-fed water supply has transitioned fully into late-season conditions, with all monitored SNOTEL stations reflecting normal seasonal meltout for mid-August. The critical supply story for 2026 is timing: stations across the Bear River Basin melted out 4–6 weeks ahead of the historical median meltout date, compressing the runoff season and accelerating the drawdown of seasonal water availability. Current streamflow readings reflect that earlier runoff pulse, with late-summer flows now governing irrigation delivery capacity for the remainder of the season. Reservoir storage data and 7-day forecast details are available in the full brief.

Snowpack Conditions

All eight SNOTEL stations monitored in the Bear River Basin serving Cache County are reporting conditions consistent with normal mid-August seasonal meltout. No station is reporting above-trace snow water equivalent.

Station Readings (August 16, 2026):

Six of eight stations report 0.0" SWE, which is normal and expected for this date — the median SWE for mid-August at these elevations is also 0.0", meaning stations are at seasonal normal, not below normal. The trace readings at Emigrant Summit (0.2" SWE) and Giveout (0.3" SWE), alongside a residual snow depth reading at Franklin Basin (1.0" depth with 0.0" SWE), are minor anomalies and do not represent meaningful water supply. The 2026 season's defining snowpack signal is not current conditions but rather meltout timing: the seasonal snowpack melted out 4–6 weeks earlier than the historical median meltout date across these stations, driven by the anomalous March heat event. That early meltout accelerated spring runoff well ahead of normal, with implications for how much seasonal storage was captured before peak irrigation demand arrived. No additional snowmelt-driven inflow should be anticipated for the remainder of the irrigation season.

Streamflow Conditions

Seven USGS gauges provide streamflow coverage across the Bear River Basin relevant to Cache County water users. Flows span a wide range across the system, reflecting the basin's geographic scale from the Wyoming headwaters to the lower Bear River near Corinne.

Gauge Readings:

The contrast between the Bear River at Border (67 cfs, rising) and the Bear River at Pescadero (805 cfs, falling) reflects reservoir operations and tributary contributions through the Bear Lake system in the intervening reach — not a data anomaly. The Bear River near Corinne reading of 824 cfs rising is the relevant mainstem indicator for lower-basin users in Cache and Box Elder counties. The Blacksmith Fork at 51 cfs stable and Logan River at 66 cfs stable represent the primary in-county tributary flows for Cache Valley irrigators; both are holding steady, which is consistent with normal late-season baseflow conditions following early meltout. The Little Bear River at Paradise reads 18 cfs stable, reflecting reduced but ongoing flow in that sub-watershed. The Malad River near Bear River City reading of 6 cfs is flagged as dated (May 15 data) and should not be used for current operational planning — users relying on Malad River conditions should contact the Utah Division of Water Resources directly for updated information.

Seasonal Guidance

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

Data Sources: SNOTEL data through August 16, 2026; USGS streamflow data through August 17, 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, U.S. Bureau of Reclamation, and Utah Division of Water Rights for regulatory decisions and water rights administration.