USGS NWIS stream and rain gauges, upper Guadalupe River (Kerr County)

Summary. Ten USGS instantaneous-value sites in Kerr County on the Guadalupe River and tributaries, plus the Comfort gauge downstream. 15-minute discharge (00060), gage height (00065) and, at four sites, precipitation (00045).

Scenarify role. Inflow hydrograph (required): 08165500 Guadalupe at Hunt, 08165300 North Fork, 08165400 South Fork. Lateral inflows: 08166000 Johnson Creek, 08166700 Cypress Creek. Outflow water level / rating curve: 08166250 Center Point, 08167000 Comfort. Calibration water levels and discharges: 08166140, 08166150, 08166200 Kerrville, 300300099093300 Concho Dr. Rain gauge CSV: 08165400, 08165500, 08166000, 08166700.

Access. USGS Water Services REST, JSON/RDB/WaterML, no auth. Example: https://waterservices.usgs.gov/nwis/iv/?format=json&sites=08165500,08166200&parameterCd=00060,00065&startDT=2025-07-03T00:00-05:00&endDT=2025-07-05T00:00-05:00. Rating tables: https://waterdata.usgs.gov/nwisweb/get_ratings?site_no=08166250&file_type=exsa (waterdata.usgs.gov returns 403 to non-browser clients; waterservices.usgs.gov does not). Convert to Scenarify CSV Time<datetime>;Discharge<double>[m3/s];Water Level<double>[m], ANSI, ; separated.

Format and CRS. Time series; site coordinates NAD83. Discharge in ft3/s and stage in ft; convert to SI. Kerrville 08166200 datum: NAVD88 = gage height + 1601.14 ft.

Coverage. 08166200 discharge since 1996, 15-min stage since 2007; other sites vary. Event of record 2025-07-04.

Provenance and caveats. The Hunt gauge (08165500) lost access and was damaged during the 2025-07-04 flood; the peak there comes from USGS indirect measurement, not the IV record. Provisional data subject to revision.

Related. mrms-qpe-july-2025-hill-country, usgs-stn-high-water-marks-july-2025, real-time-flood-monitoring-for-texas.

Dataset extent

Data and Resources

  • Site list: Kerr County IV stream sites (RDB)RDB

    10 sites with coordinates and datum.

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  • IV discharge and stage, July 2025 event, Hunt...JSON

    Template query; change sites/dates as needed.

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  • IV precipitation, July 2025 eventJSON

    15-min precipitation increments at the four rain-reporting sites.

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  • Guadalupe Rv at Kerrville 08166200 site pageHTML

    Datum, period of record, field measurements.

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  • Guadalupe Rv at Hunt 08165500 site pageHTML

    Upstream inflow site; damaged 2025-07-04.

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  • Guadalupe Rv at Comfort 08167000 site pageHTML

    Downstream boundary alternative.

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Additional Info

Field Value
Source https://waterservices.usgs.gov/
Version 2026-11-05
Author U.S. Geological Survey
Author Email U.S. Geological Survey
Maintainer William Mobley
Maintainer Email William Mobley
Temporal Coverage Start 1996-01-01
Temporal Coverage End 2026-11-05
Spatial Coverage {"type": "Polygon", "coordinates": [[[-99.45, 29.85], [-98.95, 29.85], [-98.95, 30.25], [-99.45, 30.25], [-99.45, 29.85]]]}