Data health

Storm Mode / Observations

Station and river observations

METAR/SPECI uses the existing AviationWeather.gov bulk cache over the lower 48 and its margin. NWPS retains only gauges in the existing action-stage-or-above observed list; forecast-only gauges can have no observation. Absence never establishes zero wind, low water, or safe conditions.

Water-level gauge MCBC1

current · Observed 169.29 ft at 2026-10-17 08:30:00 UTC · Action stage.

Lake or reservoir level · Marsh Creek Reservoir · Marsh Creek Reservoir · -121.726111, 37.89. Units ft; datum not supplied.

Source checked 2026-10-17 09:55:04.711Z · current.

Stage in this gauge’s units, not a regional flood depth. Tide/lake gauges remain water levels; datum is not supplied by this feed. Historical observations and the latest forecast keep separate times.

Retained observations: 9; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:05.234Z; oldest available reading 2026-10-17 04:45:00 UTC.

Observed stage and separate NWS forecast at MCBC1 (ft)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 0 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.170.3168.3ft10-17 04:45Z10-17 08:30Z2026-10-17 04:45:00 UTC · 169.29 ft2026-10-17 05:15:00 UTC · 169.28 ft2026-10-17 05:30:00 UTC · 169.3 ft2026-10-17 05:45:00 UTC · 169.3 ft2026-10-17 06:15:00 UTC · 169.29 ft2026-10-17 06:30:00 UTC · 169.29 ft2026-10-17 06:45:00 UTC · 169.29 ft2026-10-17 07:00:00 UTC · 169.3 ft2026-10-17 08:30:00 UTC · 169.29 ft
Observed stage and separate NWS forecast · 9 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.

NWS forecast · current

No forecast maximum supplied.

Impacts and the full forecast are read for gauges in flood; this one is at action stage.

Gauge thresholds: action 168 ft; minor 192 ft; moderate not set; major not set.

Observed reports as a table (9)
Observed (UTC)Stage / unitsSource category / water
2026-10-17 04:45:00 UTC169.29 ftAction stage · Lake or reservoir level
2026-10-17 05:15:00 UTC169.28 ftAction stage · Lake or reservoir level
2026-10-17 05:30:00 UTC169.3 ftAction stage · Lake or reservoir level
2026-10-17 05:45:00 UTC169.3 ftAction stage · Lake or reservoir level
2026-10-17 06:15:00 UTC169.29 ftAction stage · Lake or reservoir level
2026-10-17 06:30:00 UTC169.29 ftAction stage · Lake or reservoir level
2026-10-17 06:45:00 UTC169.29 ftAction stage · Lake or reservoir level
2026-10-17 07:00:00 UTC169.3 ftAction stage · Lake or reservoir level
2026-10-17 08:30:00 UTC169.29 ftAction stage · Lake or reservoir level
Capture times, quality and provenance

Each report keeps its observation time, first capture of this version, and the SHA-256 of the source bulk body. Corrections at the same observation time replace that point and are marked; unrelated bulk-file changes do not freshen a report.

  • Observed 2026-10-17 04:45:00 UTC, captured 2026-10-17 06:15:05.234Z; source body SHA-256 59def4ab364727656cb6987939ba27a3a22ae792b74344565dc73a5086b5ca2b.
  • Observed 2026-10-17 05:15:00 UTC, captured 2026-10-17 06:25:04.966Z; source body SHA-256 a55d6ab71db55a2ee8a268331c449d3fbde4abd1e4608ff87b0cd2cbc8b1e784.
  • Observed 2026-10-17 05:30:00 UTC, captured 2026-10-17 06:45:07.531Z; source body SHA-256 b0dc9fb0b23e2f87531801326878afb3217e339173d60d43abf09fedc76743a7.
  • Observed 2026-10-17 05:45:00 UTC, captured 2026-10-17 07:05:03.665Z; source body SHA-256 5669bcdb8c668c19675922a1e063b795649d4f988db328e21d7a7d4b91b9a3d4.
  • Observed 2026-10-17 06:15:00 UTC, captured 2026-10-17 07:25:05.694Z; source body SHA-256 192576bd8ef9fd4b46c5bad0ab08cbe3f965bb0d8d07d80380e66ed2331749bd.
  • Observed 2026-10-17 06:30:00 UTC, captured 2026-10-17 07:45:06.197Z; source body SHA-256 06036e3357d4ff94cc37be6b25c3cc7b7b1426028b9eacba9812343a8ae349f2.
  • Observed 2026-10-17 06:45:00 UTC, captured 2026-10-17 08:05:04.368Z; source body SHA-256 65352b4d0286750024cc23e7fcd002a3abc32063acdeb744c720c908fcded24c.
  • Observed 2026-10-17 07:00:00 UTC, captured 2026-10-17 08:25:04.581Z; source body SHA-256 608146df439df6605f743df87dc6a9ef7de4b31142f1c3b38ab76306641f4590.
  • Observed 2026-10-17 08:30:00 UTC, captured 2026-10-17 09:45:05.916Z; source body SHA-256 0d8a80be93500a5f3bdc37d2e564df5d4898bc27d32306a97751b1cd420138f9.

Only observed gauge records enter this history. Forecast maxima and forecast hydrograph points never become observations. A missing datum or unsupported flow value remains unknown.

Observation source page · Cached readings as JSON · Official source

Gauges in the latest cached source

114 total · source current; checked . Showing 100 on page 1. 0 gauges have suspect readings set aside.

Source status · Storm Mode