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 KMHS

current · Observed 2026-10-18 16:56:00 UTC · wind 0 kt · temperature 13.3 °C.

Station KMHS · -122.3171, 41.3149 (longitude, latitude).

Source checked 2026-10-18 17:15:05.763Z · 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: 23; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:07.108Z; oldest available reading 2026-10-17 17:56:00 UTC.

Observed sustained wind at KMHS (kt)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 4 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.5-1kt10-17 17:56Z10-18 16:56Z2026-10-17 17:56:00 UTC · 0 kt2026-10-17 19:56:00 UTC · 0 kt2026-10-17 22:56:00 UTC · 3 kt2026-10-17 23:56:00 UTC · 0 kt2026-10-18 00:56:00 UTC · 0 kt2026-10-18 01:56:00 UTC · 0 kt2026-10-18 02:56:00 UTC · 0 kt2026-10-18 03:56:00 UTC · 4 kt2026-10-18 04:56:00 UTC · 0 kt2026-10-18 05:56:00 UTC · 0 kt2026-10-18 06:56:00 UTC · 0 kt2026-10-18 07:56:00 UTC · 0 kt2026-10-18 08:56:00 UTC · 0 kt2026-10-18 09:56:00 UTC · 0 kt2026-10-18 10:56:00 UTC · 0 kt2026-10-18 11:56:00 UTC · 0 kt2026-10-18 12:56:00 UTC · 0 kt2026-10-18 13:56:00 UTC · 0 kt2026-10-18 14:56:00 UTC · 0 kt2026-10-18 15:56:00 UTC · 0 kt2026-10-18 16:56:00 UTC · 0 kt
Observed sustained wind · 21 retained observations; 4 discontinuities. Lines join reported values only; missing intervals are not interpolated.
Temperature, dew point and pressure trends
Observed temperature at KMHS (°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.26.10°C10-17 17:56Z10-18 16:56Z2026-10-17 17:56:00 UTC · 17.8 °C2026-10-17 18:56:00 UTC · 22.8 °C2026-10-17 19:56:00 UTC · 23.3 °C2026-10-17 21:56:00 UTC · 23.9 °C2026-10-17 22:56:00 UTC · 23.9 °C2026-10-17 23:56:00 UTC · 22.8 °C2026-10-18 00:56:00 UTC · 21.7 °C2026-10-18 01:56:00 UTC · 15.6 °C2026-10-18 02:56:00 UTC · 12.8 °C2026-10-18 03:56:00 UTC · 10 °C2026-10-18 04:56:00 UTC · 8.3 °C2026-10-18 05:56:00 UTC · 7.2 °C2026-10-18 06:56:00 UTC · 5.6 °C2026-10-18 07:56:00 UTC · 5 °C2026-10-18 08:56:00 UTC · 3.9 °C2026-10-18 09:56:00 UTC · 3.9 °C2026-10-18 10:56:00 UTC · 3.3 °C2026-10-18 11:56:00 UTC · 2.8 °C2026-10-18 12:56:00 UTC · 2.8 °C2026-10-18 13:56:00 UTC · 2.8 °C2026-10-18 14:56:00 UTC · 2.2 °C2026-10-18 15:56:00 UTC · 6.7 °C2026-10-18 16:56:00 UTC · 13.3 °C
Observed temperature · 23 retained observations; 1 discontinuities. Lines join reported values only; missing intervals are not interpolated.
Observed dew point at KMHS (°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.3.2-5.4°C10-17 17:56Z10-18 16:56Z2026-10-17 17:56:00 UTC · 0 °C2026-10-17 18:56:00 UTC · -2.8 °C2026-10-17 19:56:00 UTC · -2.2 °C2026-10-17 21:56:00 UTC · -4.4 °C2026-10-17 22:56:00 UTC · -3.3 °C2026-10-17 23:56:00 UTC · -1.7 °C2026-10-18 00:56:00 UTC · -1.7 °C2026-10-18 01:56:00 UTC · 1.1 °C2026-10-18 02:56:00 UTC · 0.6 °C2026-10-18 03:56:00 UTC · 0 °C2026-10-18 04:56:00 UTC · -0.6 °C2026-10-18 05:56:00 UTC · -1.1 °C2026-10-18 06:56:00 UTC · -1.1 °C2026-10-18 07:56:00 UTC · -1.1 °C2026-10-18 08:56:00 UTC · -1.1 °C2026-10-18 09:56:00 UTC · -2.2 °C2026-10-18 10:56:00 UTC · -1.7 °C2026-10-18 11:56:00 UTC · -1.7 °C2026-10-18 12:56:00 UTC · -1.1 °C2026-10-18 13:56:00 UTC · -1.1 °C2026-10-18 14:56:00 UTC · -1.1 °C2026-10-18 15:56:00 UTC · 1.1 °C2026-10-18 16:56:00 UTC · 2.2 °C
Observed dew point · 23 retained observations; 1 discontinuities. Lines join reported values only; missing intervals are not interpolated.
Observed sea-level pressure at KMHS (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.1024.71017.4mb10-17 17:56Z10-18 16:56Z2026-10-17 17:56:00 UTC · 1023.7 mb2026-10-17 18:56:00 UTC · 1022.6 mb2026-10-17 19:56:00 UTC · 1022.2 mb2026-10-17 21:56:00 UTC · 1020.1 mb2026-10-17 22:56:00 UTC · 1019.5 mb2026-10-17 23:56:00 UTC · 1019.2 mb2026-10-18 00:56:00 UTC · 1019.1 mb2026-10-18 01:56:00 UTC · 1019.8 mb2026-10-18 02:56:00 UTC · 1020.7 mb2026-10-18 03:56:00 UTC · 1020.7 mb2026-10-18 04:56:00 UTC · 1020.3 mb2026-10-18 05:56:00 UTC · 1020 mb2026-10-18 06:56:00 UTC · 1019.1 mb2026-10-18 07:56:00 UTC · 1018.9 mb2026-10-18 08:56:00 UTC · 1018.8 mb2026-10-18 09:56:00 UTC · 1018.9 mb2026-10-18 10:56:00 UTC · 1018.4 mb2026-10-18 11:56:00 UTC · 1018.6 mb2026-10-18 12:56:00 UTC · 1018.8 mb2026-10-18 13:56:00 UTC · 1019.2 mb2026-10-18 14:56:00 UTC · 1019.7 mb2026-10-18 15:56:00 UTC · 1019.5 mb2026-10-18 16:56:00 UTC · 1018.9 mb
Observed sea-level pressure · 23 retained observations; 1 discontinuities. Lines join reported values only; missing intervals are not interpolated.
Observed reports as a table (23)
Observed (UTC)Wind / gust (kt)From (° true)Temperature / dew point (°C)Pressure (mb)Visibility (mi)
2026-10-17 17:56:00 UTC0 / Not reportedCalm17.8 / 01023.710 or more
2026-10-17 18:56:00 UTCNot reported / Not reportedNot reported22.8 / -2.81022.610 or more
2026-10-17 19:56:00 UTC0 / Not reportedCalm23.3 / -2.21022.210 or more
2026-10-17 21:56:00 UTCNot reported / Not reportedNot reported23.9 / -4.41020.110 or more
2026-10-17 22:56:00 UTC3 / Not reportedVariable23.9 / -3.31019.510 or more
2026-10-17 23:56:00 UTC0 / Not reportedCalm22.8 / -1.71019.210 or more
2026-10-18 00:56:00 UTC0 / Not reportedCalm21.7 / -1.71019.110 or more
2026-10-18 01:56:00 UTC0 / Not reportedCalm15.6 / 1.11019.810 or more
2026-10-18 02:56:00 UTC0 / Not reportedCalm12.8 / 0.61020.710 or more
2026-10-18 03:56:00 UTC4 / Not reported7010 / 01020.710 or more
2026-10-18 04:56:00 UTC0 / Not reportedCalm8.3 / -0.61020.310 or more
2026-10-18 05:56:00 UTC0 / Not reportedCalm7.2 / -1.1102010 or more
2026-10-18 06:56:00 UTC0 / Not reportedCalm5.6 / -1.11019.110 or more
2026-10-18 07:56:00 UTC0 / Not reportedCalm5 / -1.11018.910 or more
2026-10-18 08:56:00 UTC0 / Not reportedCalm3.9 / -1.11018.810 or more
2026-10-18 09:56:00 UTC0 / Not reportedCalm3.9 / -2.21018.910 or more
2026-10-18 10:56:00 UTC0 / Not reportedCalm3.3 / -1.71018.410 or more
2026-10-18 11:56:00 UTC0 / Not reportedCalm2.8 / -1.71018.610 or more
2026-10-18 12:56:00 UTC0 / Not reportedCalm2.8 / -1.11018.810 or more
2026-10-18 13:56:00 UTC0 / Not reportedCalm2.8 / -1.11019.210 or more
2026-10-18 14:56:00 UTC0 / Not reportedCalm2.2 / -1.11019.79
2026-10-18 15:56:00 UTC0 / Not reportedCalm6.7 / 1.11019.510 or more
2026-10-18 16:56:00 UTC0 / Not reportedCalm13.3 / 2.21018.910 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 2026-10-17 17:56:00 UTC, captured 2026-10-17 18:00:07.907Z; source body SHA-256 87f841dd0eda299799ecfa27669c14712906e9b7f2462af1e9aaebc60f5a4644.
  • Observed 2026-10-17 18:56:00 UTC, captured 2026-10-17 19:00:06.492Z; source body SHA-256 9b92790a99ac0e8c2777442829b2a9236f72d6e831b8d9a0836ca29a9d3acbba.
  • Observed 2026-10-17 19:56:00 UTC, captured 2026-10-17 20:00:08.337Z; source body SHA-256 b75985c438912b2da4a26e309fc2fbabef235be8a13c5848c5c5d64297850019.
  • Observed 2026-10-17 21:56:00 UTC, captured 2026-10-17 22:00:07.362Z; source body SHA-256 f1fa85855e007d5d5b85e6dbf4575f6d6bfe58fd5c9a7bb6d9e9cc636ec4c3b2.
  • Observed 2026-10-17 22:56:00 UTC, captured 2026-10-17 23:00:07.092Z; source body SHA-256 2ee1214ad66de98865565d92f21f7f5094d6b2e4ef4f09839341a5e6cd89b61b.
  • Observed 2026-10-17 23:56:00 UTC, captured 2026-10-18 00:00:09.347Z; source body SHA-256 fe50c177f37463edb2970e7df309ca8243c740fe7f3ba6344704878ab6922ee2.
  • Observed 2026-10-18 00:56:00 UTC, captured 2026-10-18 01:00:10.019Z; source body SHA-256 949eb463d93270208adccd66994771bf859674b804d78a93f2b1e78571af9b73.
  • Observed 2026-10-18 01:56:00 UTC, captured 2026-10-18 02:00:07.747Z; source body SHA-256 2a808d30ef24af292625f66ac29ed87d3497f0029e7978811a5214db4d4e391c.
  • Observed 2026-10-18 02:56:00 UTC, captured 2026-10-18 03:00:08.091Z; source body SHA-256 1ff4ba07d334ddc5e777bc047fb0a9a13be27865eed8a1596ab4f40757641175.
  • Observed 2026-10-18 03:56:00 UTC, captured 2026-10-18 04:00:09.699Z; source body SHA-256 8e92b49a3b0987ff40c99aaaa9dbae3470c3cdf7475dec143172378b951fb9c9.
  • Observed 2026-10-18 04:56:00 UTC, captured 2026-10-18 05:00:07.387Z; source body SHA-256 d0747946a85e0b6149bd4061e0c1af798f590d9eac7088d421db1613ed7afb6e.
  • Observed 2026-10-18 05:56:00 UTC, captured 2026-10-18 06:00:07.780Z; source body SHA-256 516488ab99336824be748099d9095cce133bd39e49a9ebce7ac31e8ca5594345.
  • Observed 2026-10-18 06:56:00 UTC, captured 2026-10-18 07:00:07.060Z; source body SHA-256 cef387356b01a216d569fa5c4ef4911e52a5f5bb19d30034c5f3867ad0b3f6c5.
  • Observed 2026-10-18 07:56:00 UTC, captured 2026-10-18 08:00:11.468Z; source body SHA-256 53a01ad60670349facf980ea22602bd1fb21ffca3c40d501342bfb23f8e22c0b.
  • Observed 2026-10-18 08:56:00 UTC, captured 2026-10-18 09:00:09.520Z; source body SHA-256 8ad9748657ec506ad6f6e8aeac27fa8611b3416e28598e978a06c642e3ba8df5.
  • Observed 2026-10-18 09:56:00 UTC, captured 2026-10-18 10:00:08.135Z; source body SHA-256 7088f7a20b608392c60688c0c6cc24bb874f518a9d855a8f279a1656aa963b5f.
  • Observed 2026-10-18 10:56:00 UTC, captured 2026-10-18 11:00:09.217Z; source body SHA-256 4c9aeddeccab4a18ef736d7fde43bbf68e646f4e3dd3672a819a2d3d41e31ffb.
  • Observed 2026-10-18 11:56:00 UTC, captured 2026-10-18 12:00:08.069Z; source body SHA-256 99d8a01a4181fd6dc5a6f38379f01ddc13eb1176afbc54835f8b9e2d8864e444.
  • Observed 2026-10-18 12:56:00 UTC, captured 2026-10-18 13:00:08.827Z; source body SHA-256 099a919970c81c196850e485719d2befbfd218b45455920c630e4665158be4f6.
  • Observed 2026-10-18 13:56:00 UTC, captured 2026-10-18 14:00:06.781Z; source body SHA-256 d5bb4158d51e4be8ae455671d404663bf3c089899145baea8f175a4f02ee691b.
  • Observed 2026-10-18 14:56:00 UTC, captured 2026-10-18 15:00:07.750Z; source body SHA-256 fb3f3094c11b10dd11208847ba057d3a914f9c474065557688b031827858eed4.
  • 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.

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

102 total · source current; checked . Showing 100 on page 1. {"flagged":619,"old":0,"implausible":0,"outside":2463,"unreadable":2,"damagedStored":0} excluded reports (counts by reason).

Source status · Storm Mode