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 KSFO

current · Observed 2026-10-18 17:56:00 UTC · wind 12 kt · temperature 17.8 °C.

Station KSFO · -122.3656, 37.6196 (longitude, latitude).

Source checked 2026-10-18 18:00:05.653Z · 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: 3; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:07.108Z; oldest available reading 2026-10-18 15:56:00 UTC.

Observed sustained wind at KSFO (kt)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.137kt10-18 15:56Z10-18 17:56Z2026-10-18 15:56:00 UTC · 8 kt2026-10-18 16:56:00 UTC · 10 kt2026-10-18 17:56:00 UTC · 12 kt
Observed sustained wind · 3 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.
Temperature, dew point and pressure trends
Observed temperature at KSFO (°C)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.18.814.6°C10-18 15:56Z10-18 17:56Z2026-10-18 15:56:00 UTC · 15.6 °C2026-10-18 16:56:00 UTC · 17.2 °C2026-10-18 17:56:00 UTC · 17.8 °C
Observed temperature · 3 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.
Observed dew point at KSFO (°C)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.14.312.3°C10-18 15:56Z10-18 17:56Z2026-10-18 15:56:00 UTC · 13.3 °C2026-10-18 16:56:00 UTC · 13.3 °C2026-10-18 17:56:00 UTC · 13.3 °C
Observed dew point · 3 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.
Observed sea-level pressure at KSFO (mb)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.1017.61015.2mb10-18 15:56Z10-18 17:56Z2026-10-18 15:56:00 UTC · 1016.2 mb2026-10-18 16:56:00 UTC · 1016.6 mb2026-10-18 17:56:00 UTC · 1016.5 mb
Observed sea-level pressure · 3 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.
Observed reports as a table (3)
Observed (UTC)Wind / gust (kt)From (° true)Temperature / dew point (°C)Pressure (mb)Visibility (mi)
2026-10-18 15:56:00 UTC8 / Not reported31015.6 / 13.31016.210 or more
2026-10-18 16:56:00 UTC10 / Not reported31017.2 / 13.31016.610 or more
2026-10-18 17:56:00 UTC12 / Not reported31017.8 / 13.31016.510 or more
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 15:56:00 UTC, captured 2026-10-18 16:00:07.010Z; source body SHA-256 1a64a07f010d8deb579f76e936259499ecd9299f0a3027594b291930b1b61c4d.
  • Observed 2026-10-18 16:56:00 UTC, captured 2026-10-18 17:00:06.399Z; source body SHA-256 c006e676533fb42ac5e8536e9cb2b841c874883c562d965a13f7c70c3f3b5cfc.
  • Observed 2026-10-18 17:56:00 UTC, captured 2026-10-18 18:00:07.738Z; source body SHA-256 f6b726caa8279ba86e076548fb62ee7a0309bdfaba00092834579914be370515.

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

2100 total · source current; checked . Showing 100 on page 2. {"flagged":610,"old":0,"implausible":0,"outside":2332,"unreadable":2,"damagedStored":0} excluded reports (counts by reason).

Source status · Storm Mode