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.

Surface station KNCA

unavailable · No observation in the latest cached source list. Retained readings below are historical; an absent gauge may have fallen below action stage or stopped reporting.

Station KNCA · -77.4406, 34.7062 (longitude, latitude).

Source checked 2026-10-19 18:30:05.953Z · current.

Station observations, not an address forecast or cyclone maximum wind. Maintenance-flagged, old and implausible reports are excluded by the existing parser; this is not independent NWS quality control.

Retained observations: 4; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:07.108Z; oldest available reading 2026-10-19 11:56:00 UTC.

Observed sustained wind at KNCA (kt)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 1 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.178kt10-19 11:56Z10-19 16:56Z2026-10-19 11:56:00 UTC · 9 kt2026-10-19 12:56:00 UTC · 10 kt2026-10-19 13:56:00 UTC · 14 kt2026-10-19 16:56:00 UTC · 16 kt
Observed sustained wind · 4 retained observations; 1 discontinuities. Lines join reported values only; missing intervals are not interpolated.
Temperature, dew point and pressure trends
Observed temperature at KNCA (°C)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 1 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.19.910.1°C10-19 11:56Z10-19 16:56Z2026-10-19 11:56:00 UTC · 11.1 °C2026-10-19 12:56:00 UTC · 12.2 °C2026-10-19 13:56:00 UTC · 14.4 °C2026-10-19 16:56:00 UTC · 18.9 °C
Observed temperature · 4 retained observations; 1 discontinuities. Lines join reported values only; missing intervals are not interpolated.
Observed dew point at KNCA (°C)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 1 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.10.45.7°C10-19 11:56Z10-19 16:56Z2026-10-19 11:56:00 UTC · 6.7 °C2026-10-19 12:56:00 UTC · 6.7 °C2026-10-19 13:56:00 UTC · 7.2 °C2026-10-19 16:56:00 UTC · 9.4 °C
Observed dew point · 4 retained observations; 1 discontinuities. Lines join reported values only; missing intervals are not interpolated.
Observed sea-level pressure at KNCA (mb)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 1 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.1028.21021.4mb10-19 11:56Z10-19 16:56Z2026-10-19 11:56:00 UTC · 1027.2 mb2026-10-19 12:56:00 UTC · 1027.1 mb2026-10-19 13:56:00 UTC · 1026.7 mb2026-10-19 16:56:00 UTC · 1022.4 mb
Observed sea-level pressure · 4 retained observations; 1 discontinuities. Lines join reported values only; missing intervals are not interpolated.
Observed reports as a table (4)
Observed (UTC)Wind / gust (kt)From (° true)Temperature / dew point (°C)Pressure (mb)Visibility (mi)
2026-10-19 11:56:00 UTC9 / Not reported36011.1 / 6.71027.27
2026-10-19 12:56:00 UTC10 / Not reported36012.2 / 6.71027.17
2026-10-19 13:56:00 UTC14 / 23 36014.4 / 7.21026.77
2026-10-19 16:56:00 UTC16 / 26 36018.9 / 9.41022.47
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 11:56:00 UTC, captured 2026-10-19 12:15:09.085Z; source body SHA-256 f3f0d6c5ed43508f4ed09c46d10a70e46bb009246cf012acc9f7d588d128c895.
  • Observed 2026-10-19 12:56:00 UTC, captured 2026-10-19 13:45:08.802Z; source body SHA-256 984c460521628278673dd9b76a939849fa82de6ce41321d44696688f8d5b3129.
  • Observed 2026-10-19 13:56:00 UTC, captured 2026-10-19 14:45:09.123Z; source body SHA-256 9f083f36236fbd5fca2bcd552e2efa9629df5938663bb96bf9f5c5ccd46a92b0.
  • Observed 2026-10-19 16:56:00 UTC, captured 2026-10-19 18:15:09.861Z; source body SHA-256 1a05f3b4642a5f38b73a758d4c6f0af302cc01e9dc04c83cb62fb941e7e8c951.

Values use the decoded station report. Null means not reported, never zero. Gust is kept separate from sustained wind.

Observation source page · Cached readings as JSON · Official source

Surface stations in the latest cached source

2319 total · source current; checked . Showing 100 on page 18. Quality-filtered station observations.

Quality exclusions
flagged
445
old
0
implausible
0
outside
2411
unreadable
2
damagedStored
0

Source status · Storm Mode