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 SJLF1

current · Observed 1.41 ft at 2026-10-19 10:30:00 UTC · Action stage.

River gauge · Jacksonville (in MHHW) · St. Johns River · -81.665556, 30.322222. Units ft; datum not supplied.

Source checked 2026-10-19 12:55:05.361Z · 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: 3; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:05.234Z; oldest available reading 2026-10-19 08:30:00 UTC.

Observed stage and separate NWS forecast at SJLF1 (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.2.50.4ft10-19 08:30Z10-19 10:30Z2026-10-19 08:30:00 UTC · 1.46 ft2026-10-19 09:30:00 UTC · 1.49 ft2026-10-19 10:30:00 UTC · 1.41 ft
Observed stage and separate NWS forecast · 3 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 (3)
Observed (UTC)Stage / unitsSource category / water
2026-10-19 08:30:00 UTC1.46 ftAction stage · River gauge
2026-10-19 09:30:00 UTC1.49 ftAction stage · River gauge
2026-10-19 10:30:00 UTC1.41 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 2026-10-19 08:30:00 UTC, captured 2026-10-19 09:35:08.435Z; source body SHA-256 6fbbf3e1f44369bcaf13f63b26d149ba37d0010fb09f75411a6a844bd7b72696.
  • Observed 2026-10-19 09:30:00 UTC, captured 2026-10-19 10:35:07.339Z; source body SHA-256 d4e37c5494a844878d81c60b13c7c8f5a9005222033e1ab940c3aef248e5b03c.
  • Observed 2026-10-19 10:30:00 UTC, captured 2026-10-19 11:35:11.047Z; source body SHA-256 5abb6f338462b28656d272c79a920db10c32c468d03eb359b62a275f9342a153.

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

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

Source status · Storm Mode