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 GCEF1

current · Observed 1.17 ft at 2026-10-18 14:30:00 UTC · Action stage.

River gauge · Shands Bridge (in MHHW) · St. Johns River · -81.615, 30.005833. Units ft; datum not supplied.

Source checked 2026-10-18 15:55:04.844Z · 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: 6; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:05.234Z; oldest available reading 2026-10-18 09:30:00 UTC.

Observed stage and separate NWS forecast at GCEF1 (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.2.30.1ft10-18 09:30Z10-18 14:30Z2026-10-18 09:30:00 UTC · 1.09 ft2026-10-18 10:30:00 UTC · 1.2 ft2026-10-18 11:30:00 UTC · 1.26 ft2026-10-18 12:30:00 UTC · 1.28 ft2026-10-18 13:30:00 UTC · 1.26 ft2026-10-18 14:30:00 UTC · 1.17 ft
Observed stage and separate NWS forecast · 6 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 1 ft; minor 1.5 ft; moderate 2 ft; major 3 ft.

Observed reports as a table (6)
Observed (UTC)Stage / unitsSource category / water
2026-10-18 09:30:00 UTC1.09 ftAction stage · River gauge
2026-10-18 10:30:00 UTC1.2 ftAction stage · River gauge
2026-10-18 11:30:00 UTC1.26 ftAction stage · River gauge
2026-10-18 12:30:00 UTC1.28 ftAction stage · River gauge
2026-10-18 13:30:00 UTC1.26 ftAction stage · River gauge
2026-10-18 14:30:00 UTC1.17 ftAction stage · River gauge
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 2026-10-18 09:30:00 UTC, captured 2026-10-18 10:45:06.147Z; source body SHA-256 f9ec384b81483e72a9ae5337534a7a06fa87afcdf9f48f460f2ce7a8d1bfd304.
  • Observed 2026-10-18 10:30:00 UTC, captured 2026-10-18 11:45:06.462Z; source body SHA-256 b99d58187ca3ea4cc4b9d6c52c512aab30f4d472ae0434818778db973a9178fb.
  • Observed 2026-10-18 11:30:00 UTC, captured 2026-10-18 12:35:05.943Z; source body SHA-256 cbd1e58236ca3fb49bf5a7ea0fc0147357cc40b9a2beb0d15aa361ae7c4b454e.
  • Observed 2026-10-18 12:30:00 UTC, captured 2026-10-18 13:55:07.558Z; source body SHA-256 c782879870c01b6fcc840bc720d4c0a556f71ed8251f52e692e0c18918a7b83f.
  • Observed 2026-10-18 13:30:00 UTC, captured 2026-10-18 14:35:07.225Z; source body SHA-256 571b293d8f9eb11322235f143f729ad67aad81c71d4573a940b1944493b23dec.
  • Observed 2026-10-18 14:30:00 UTC, captured 2026-10-18 15:35:05.300Z; source body SHA-256 a1da67cfb1aeb3409b6b3aef4c1dbc5395a3906d3d3ff89219304ff7faf54d60.

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

113 total · source current; checked . Showing 13 on page 2. 0 gauges have suspect readings set aside.

Source status · Storm Mode