Washington County Water Intelligence Brief

June 8, 2026 | Free-Tier Edition

*Primary Audience: Municipal Water Managers, Planners & Policy Stakeholders | Washington County Water Conservancy District Service Area*

Situation Summary

All five SNOTEL stations monitoring the Virgin River basin headwaters are reporting 0.0" SWE as of June 7 — consistent with normal seasonal conditions for this date, but masking the critical 2026 signal: snowpack melted out approximately 4–6 weeks ahead of the historical median meltout date, compressing the spring runoff window and reducing municipal recharge opportunity for Quail Creek and Sand Hollow reservoirs. Washington County's rapidly growing metro area (~190,000 population) depends heavily on WCWCD's managed storage to buffer this kind of supply compression, and reservoir status entering peak summer demand season is the decisive variable. Reservoir storage data, 7-day demand forecast details, and depletion trajectory analysis are available in the full brief.

Snowpack Conditions

All monitored SNOTEL stations in the Virgin River basin are fully melted out as of June 7, 2026:

| Station | SWE | Snow Depth |

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

| Gardner Peak | 0.0" | 0.0" |

| Gutz Peak | 0.0" | 0.0" |

| Kolob | 0.0" | 0.0" |

| Long Valley Jct | 0.0" | 0.0" |

| Webster Flat | 0.0" | 0.0" |

Complete meltout at all stations is within normal seasonal range for early June — the median SWE for these stations at this calendar date is also 0.0", so current readings do not indicate below-normal conditions as measured today. The meaningful concern for 2026 is timing: an anomalous March heat wave drove meltout 4–6 weeks ahead of the historical median meltout date across the region, meaning the runoff pulse that typically supports late-spring reservoir filling arrived early and largely concluded before peak municipal demand season. Washington County's SNOTEL network is relatively sparse compared to northern Utah basins — high-elevation monitoring coverage in the Virgin River headwaters is limited, and managers should acknowledge that uncertainty when assessing total snowmelt contribution to this season's surface supply.

Streamflow Conditions

Virgin River basin gauges show moderate early-June flows, with notable divergence between mainstem and tributary readings:

Virgin River mainstem and upper forks:

Santa Clara River system:

The Virgin River mainstem at Virgin (71 cfs, falling) carries the dominant surface flow in the basin. The divergence between the falling trend at Virgin and the rising signal at La Verkin suggests localized tributary contribution from La Verkin Creek. The Santa Clara River — which drains directly through the St. George metro area — is running at very low levels (3 cfs at St. George), reinforcing the degree to which municipal supply depends on WCWCD managed storage rather than direct streamflow diversion. With the spring snowmelt pulse already passed, flows are expected to reflect base-flow and monsoon-onset conditions through mid-summer.

Seasonal Guidance

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

Data Sources: SNOTEL data through June 7, 2026; USGS streamflow data through June 8, 2026. Snowpack data via NRCS SNOTEL network (5 stations, Virgin River basin). Streamflow data via USGS National Water Information System (6 gauges, Virgin River basin).

Data Current As Of: June 8, 2026. Utah Division of Water Rights administration status should be verified directly at waterrights.utah.gov.

Important Disclaimers: This brief provides automated analysis for informational purposes only. Specific numerical claims have not been independently verified. Consult official sources including Washington County Water Conservancy District (WCWCD — primary water authority for Quail Creek and Sand Hollow reservoirs), Utah Division of Water Rights, and appropriate federal and tribal water administrators for regulatory decisions and water rights administration. Colorado River Compact obligations and Lower Basin shortage conditions are active policy context — consult USBR Upper Colorado Region for current federal determinations. Agricultural users in Hurricane Valley and Enterprise area should contact WCWCD and Utah Division of Water Rights for irrigation-season guidance specific to their water right class and priority.