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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 DEMI4

current · Observed 8.41 ft at 2026-10-18 09:47:00 UTC · Action stage.

River gauge · Des Moines Fleur Dr · Raccoon River · -93.642667, 41.5815. Units ft; datum not supplied.

Source checked 2026-10-18 11:05:05.100Z · 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: 28; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:05.234Z; oldest available reading 2026-10-17 20:17:00 UTC.

Observed stage and separate NWS forecast at DEMI4 (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.9.47ft10-17 20:17Z10-18 09:47Z2026-10-17 20:17:00 UTC · 8.02 ft2026-10-17 20:47:00 UTC · 8.04 ft2026-10-17 21:17:00 UTC · 8.08 ft2026-10-17 21:47:00 UTC · 8.09 ft2026-10-17 22:17:00 UTC · 8.13 ft2026-10-17 22:47:00 UTC · 8.13 ft2026-10-17 23:17:00 UTC · 8.17 ft2026-10-17 23:47:00 UTC · 8.18 ft2026-10-18 00:17:00 UTC · 8.19 ft2026-10-18 00:47:00 UTC · 8.21 ft2026-10-18 01:17:00 UTC · 8.22 ft2026-10-18 01:47:00 UTC · 8.24 ft2026-10-18 02:17:00 UTC · 8.25 ft2026-10-18 02:47:00 UTC · 8.27 ft2026-10-18 03:17:00 UTC · 8.28 ft2026-10-18 03:47:00 UTC · 8.29 ft2026-10-18 04:17:00 UTC · 8.31 ft2026-10-18 04:47:00 UTC · 8.31 ft2026-10-18 05:17:00 UTC · 8.34 ft2026-10-18 05:47:00 UTC · 8.34 ft2026-10-18 06:17:00 UTC · 8.34 ft2026-10-18 06:47:00 UTC · 8.35 ft2026-10-18 07:17:00 UTC · 8.37 ft2026-10-18 07:47:00 UTC · 8.4 ft2026-10-18 08:17:00 UTC · 8.4 ft2026-10-18 08:47:00 UTC · 8.39 ft2026-10-18 09:17:00 UTC · 8.4 ft2026-10-18 09:47:00 UTC · 8.41 ft
Observed stage and separate NWS forecast · 28 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.

NWS forecast · current

Highest listed forecast: 8.3 ft at 2026-10-18 12:00:00 UTC; issued 2026-10-18 00:41:00 UTC. Action stage.

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

Gauge thresholds: action 8 ft; minor 12 ft; moderate 16 ft; major 25 ft.

Observed reports as a table (28)
Observed (UTC)Stage / unitsSource category / water
2026-10-17 20:17:00 UTC8.02 ftAction stage · River gauge
2026-10-17 20:47:00 UTC8.04 ftAction stage · River gauge
2026-10-17 21:17:00 UTC8.08 ftAction stage · River gauge
2026-10-17 21:47:00 UTC8.09 ftAction stage · River gauge
2026-10-17 22:17:00 UTC8.13 ftAction stage · River gauge
2026-10-17 22:47:00 UTC8.13 ftAction stage · River gauge
2026-10-17 23:17:00 UTC8.17 ftAction stage · River gauge
2026-10-17 23:47:00 UTC8.18 ftAction stage · River gauge
2026-10-18 00:17:00 UTC8.19 ftAction stage · River gauge
2026-10-18 00:47:00 UTC8.21 ftAction stage · River gauge
2026-10-18 01:17:00 UTC8.22 ftAction stage · River gauge
2026-10-18 01:47:00 UTC8.24 ftAction stage · River gauge
2026-10-18 02:17:00 UTC8.25 ftAction stage · River gauge
2026-10-18 02:47:00 UTC8.27 ftAction stage · River gauge
2026-10-18 03:17:00 UTC8.28 ftAction stage · River gauge
2026-10-18 03:47:00 UTC8.29 ftAction stage · River gauge
2026-10-18 04:17:00 UTC8.31 ftAction stage · River gauge
2026-10-18 04:47:00 UTC8.31 ftAction stage · River gauge
2026-10-18 05:17:00 UTC8.34 ftAction stage · River gauge
2026-10-18 05:47:00 UTC8.34 ftAction stage · River gauge
2026-10-18 06:17:00 UTC8.34 ftAction stage · River gauge
2026-10-18 06:47:00 UTC8.35 ftAction stage · River gauge
2026-10-18 07:17:00 UTC8.37 ftAction stage · River gauge
2026-10-18 07:47:00 UTC8.4 ftAction stage · River gauge
2026-10-18 08:17:00 UTC8.4 ftAction stage · River gauge
2026-10-18 08:47:00 UTC8.39 ftAction stage · River gauge
2026-10-18 09:17:00 UTC8.4 ftAction stage · River gauge
2026-10-18 09:47:00 UTC8.41 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 2026-10-17 20:17:00 UTC, captured 2026-10-17 21:25:04.659Z; source body SHA-256 587d4b429fdb21364a4a40d69af457e0f516a29baf595199eaa813c8160dfd2a.
  • Observed 2026-10-17 20:47:00 UTC, captured 2026-10-17 21:45:07.045Z; source body SHA-256 43a2e7d545d29fab597c64dfa377979cf0e4cde3c006abfee356d3d9551278cc.
  • Observed 2026-10-17 21:17:00 UTC, captured 2026-10-17 22:25:06.849Z; source body SHA-256 9bf964242c4addae0d20866f2d831a9e64ccba11ea3c1b463329b9278533380e.
  • Observed 2026-10-17 21:47:00 UTC, captured 2026-10-17 22:45:06.961Z; source body SHA-256 81897733eaebfe0f53f6bd6934cb4096aec879e50dcd7cdd4ea70fc8c6e69354.
  • Observed 2026-10-17 22:17:00 UTC, captured 2026-10-17 23:25:06.711Z; source body SHA-256 8da59c32db89ffc8bcc344fa162df179ffb3bcfb9c8d6c3d7de078c76c588e37.
  • Observed 2026-10-17 22:47:00 UTC, captured 2026-10-17 23:45:07.141Z; source body SHA-256 e0aa2cdbffe75e84b482e35023ac443e84b1c9dd6a699489f102761b277e05b7.
  • Observed 2026-10-17 23:17:00 UTC, captured 2026-10-18 00:25:06.204Z; source body SHA-256 d05b4112c083f82757f110a6e33eb3863e102b95953e751bf95dba00c1140de3.
  • Observed 2026-10-17 23:47:00 UTC, captured 2026-10-18 00:45:06.728Z; source body SHA-256 afec4416ea0f8de0c9a380660fb699f0e6f2f6de46c7f2306163e8220dd91163.
  • Observed 2026-10-18 00:17:00 UTC, captured 2026-10-18 01:25:06.453Z; source body SHA-256 e409fc97034bfb40176782eb786aad2fea65de1c5495bf843e8769c4e41a58d8.
  • Observed 2026-10-18 00:47:00 UTC, captured 2026-10-18 01:45:07.743Z; source body SHA-256 96839b0335ecd43c6dabc983d11df8aeab91e36e5e3372f860eba9f2b2d95541.
  • Observed 2026-10-18 01:17:00 UTC, captured 2026-10-18 02:25:06.825Z; source body SHA-256 600cff19b0bc179b7e2f42803631ee390bd1b11283628e6a503e222a0e8b3a14.
  • Observed 2026-10-18 01:47:00 UTC, captured 2026-10-18 02:45:07.313Z; source body SHA-256 62c302570e4c9664062c4d26c0d93ac08750be9a01c8a2e2ac4de36859f02861.
  • Observed 2026-10-18 02:17:00 UTC, captured 2026-10-18 03:25:06.216Z; source body SHA-256 92f2e27fc506ae63afc75604b8a292744564efc8ffb32faf9d88a12f922eaf04.
  • Observed 2026-10-18 02:47:00 UTC, captured 2026-10-18 03:45:07.896Z; source body SHA-256 4887920066f1fd446f3fc0a9c54e7c8d1c5ed9910016019e90ef50b19ca74968.
  • Observed 2026-10-18 03:17:00 UTC, captured 2026-10-18 04:25:05.971Z; source body SHA-256 029a16616ec9e48a0025d9d2c7b23df7b244f87a026ab38c379d2044e416b75a.
  • Observed 2026-10-18 03:47:00 UTC, captured 2026-10-18 04:45:06.385Z; source body SHA-256 8cea083d6932c01bf6481890352407106b23688126b53d02872d2802cf6bae93.
  • Observed 2026-10-18 04:17:00 UTC, captured 2026-10-18 05:25:05.968Z; source body SHA-256 40677afb316e2bbbc9d691a272f0b0584249fae9905f85082632b4cda8d2c8b7.
  • Observed 2026-10-18 04:47:00 UTC, captured 2026-10-18 05:45:06.584Z; source body SHA-256 6ed9115dfead54b0e075dfbe05d2b62ebd3130e8f5d1f4f403faba9da112763a.
  • Observed 2026-10-18 05:17:00 UTC, captured 2026-10-18 06:25:07.255Z; source body SHA-256 bbdb5d8c6ac8ff7be76b3e4d06da12e0a7f91808818326c330883d515386c964.
  • Observed 2026-10-18 05:47:00 UTC, captured 2026-10-18 06:45:07.545Z; source body SHA-256 9cc0eb80af90f52238c726b6d50cafa53d7706bcb8d83f269f808e2365fab14b.
  • Observed 2026-10-18 06:17:00 UTC, captured 2026-10-18 07:25:06.987Z; source body SHA-256 69fe98220b73acbbf241d232d2909186aa6610c9ac7171646f63da1da9f23324.
  • Observed 2026-10-18 06:47:00 UTC, captured 2026-10-18 07:45:07.607Z; source body SHA-256 4bdcf2cef98e5f87b603cbd695cbb63232454cb4c24d84d3f90eead72e55b0c4.
  • Observed 2026-10-18 07:17:00 UTC, captured 2026-10-18 08:25:07.817Z; source body SHA-256 a1758d3bc70cab0935c46138db08f2a86223299161f86305bd041609184e0cee.
  • Observed 2026-10-18 07:47:00 UTC, captured 2026-10-18 08:45:08.004Z; source body SHA-256 77057086dbcf79ff48990feddd832c0e48635fa92e67025d34584a9a07168b2d.
  • Observed 2026-10-18 08:17:00 UTC, captured 2026-10-18 09:25:07.308Z; source body SHA-256 07dbc3d99c4331a20c0bb7fa2d4c5f48cf22e4b1331e16d2064fa65f70d4bf6b.
  • Observed 2026-10-18 08:47:00 UTC, captured 2026-10-18 09:45:07.931Z; source body SHA-256 d4e4cc77d19cc3ff72d6286cb8f725b077587b20c7ce618af7e66a4252b5b6ce.
  • Observed 2026-10-18 09:17:00 UTC, captured 2026-10-18 10:25:08.828Z; source body SHA-256 e475568e8d4b015904ec594136858852549ad52eb8eea66b1014deb8bc172528.
  • Observed 2026-10-18 09:47:00 UTC, captured 2026-10-18 10:45:06.147Z; source body SHA-256 f9ec384b81483e72a9ae5337534a7a06fa87afcdf9f48f460f2ce7a8d1bfd304.

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

2 total · source current; checked . Showing 2 on page 1. 0 gauges have suspect readings set aside.

Source status · Storm Mode