NDBC has recently revised the NDBC Handbook of Automated Data Quality Control Checks and Procedures. The new document can be found on our Publications page.
Station SISW1 - Smith Island, WA 
Lowest 1-minute Pressure |
Time (PDT) | | Pressure |
2:50 pm | | 30.09 in |
Highest 1-minute Wind Speed |
Time (PDT) | WSPD | WDIR |
2:50 pm | 16 kts | WNW ( 300 deg true ) |
|
|
Previous observations
TIME (PDT) |
 WDIR |
 WSPD kts |
 GST kts |
 WVHT ft |
 DPD sec |
 APD sec |
 MWD |
 PRES in |
 PTDY in |
 ATMP °F |
 WTMP °F |
 DEWP °F |
 SAL psu |
 VIS nmi |
 TIDE ft |
2025-04-16 02:40 pm | NW | 15 | 18 | - | - | - | - | 30.09 | - | 52.9 | - | 39.4 | - | - | - |
2025-04-16 02:30 pm | WNW | 14 | 20 | - | - | - | - | 30.09 | - | 52.5 | - | 40.5 | - | - | - |
2025-04-16 02:20 pm | NW | 15 | 19 | - | - | - | - | 30.09 | - | 52.2 | - | 40.8 | - | - | - |
2025-04-16 02:10 pm | NW | 15 | 17 | - | - | - | - | 30.09 | - | 50.9 | - | 42.4 | - | - | - |
2025-04-16 02:00 pm | WNW | 14 | 16 | - | - | - | - | 30.09 | -0.02 | 51.3 | - | 43.0 | - | - | - |
2025-04-16 01:50 pm | WNW | 13 | 15 | - | - | - | - | 30.10 | - | 51.3 | - | 43.0 | - | - | - |
2025-04-16 01:40 pm | NW | 13 | 15 | - | - | - | - | 30.10 | - | 51.3 | - | 42.3 | - | - | - |
2025-04-16 01:30 pm | WNW | 12 | 17 | - | - | - | - | 30.10 | - | 51.4 | - | 42.4 | - | - | - |
2025-04-16 01:20 pm | WNW | 12 | 16 | - | - | - | - | 30.10 | - | 51.6 | - | 42.6 | - | - | - |
2025-04-16 01:10 pm | WNW | 12 | 15 | - | - | - | - | 30.10 | - | 51.8 | - | 41.9 | - | - | - |
2025-04-16 01:00 pm | WNW | 13 | 15 | - | - | - | - | 30.10 | -0.01 | 51.3 | - | 41.2 | - | - | - |
2025-04-16 12:50 pm | NW | 14 | 16 | - | - | - | - | 30.10 | - | 51.1 | - | 40.5 | - | - | - |
2025-04-16 12:40 pm | NW | 14 | 16 | - | - | - | - | 30.10 | - | 50.9 | - | 40.8 | - | - | - |
2025-04-16 12:30 pm | NNW | 15 | 17 | - | - | - | - | 30.10 | - | 50.5 | - | 41.7 | - | - | - |
2025-04-16 12:20 pm | NNW | 15 | 17 | - | - | - | - | 30.11 | - | 50.2 | - | 41.9 | - | - | - |
2025-04-16 12:10 pm | NNW | 15 | 16 | - | - | - | - | 30.11 | - | 50.2 | - | 42.1 | - | - | - |
2025-04-16 12:00 pm | NNW | 14 | 17 | - | - | - | - | 30.11 | +0.01 | 50.0 | - | 42.1 | - | - | - |
2025-04-16 11:50 am | N | 14 | 17 | - | - | - | - | 30.11 | - | 50.0 | - | 42.1 | - | - | - |
2025-04-16 11:40 am | NW | 5 | 11 | - | - | - | - | 30.12 | - | 50.4 | - | 41.9 | - | - | - |
2025-04-16 11:30 am | N | 5 | 8 | - | - | - | - | 30.12 | - | 50.7 | - | 39.7 | - | - | - |
2025-04-16 11:20 am | NE | 10 | 13 | - | - | - | - | 30.12 | - | 50.7 | - | 37.8 | - | - | - |
2025-04-16 11:10 am | NE | 12 | 14 | - | - | - | - | 30.12 | - | 50.7 | - | 37.6 | - | - | - |
2025-04-16 11:00 am | NE | 15 | 17 | - | - | - | - | 30.11 | +0.01 | 50.4 | - | 37.6 | - | - | - |
2025-04-16 10:50 am | NE | 11 | 16 | - | - | - | - | 30.11 | - | 49.6 | - | 39.2 | - | - | - |
2025-04-16 10:40 am | ENE | 3 | 9 | - | - | - | - | 30.11 | - | 48.7 | - | 42.4 | - | - | - |
2025-04-16 10:30 am | ENE | 2 | 5 | - | - | - | - | 30.11 | - | 48.6 | - | 42.4 | - | - | - |
2025-04-16 10:20 am | ENE | 3 | 5 | - | - | - | - | 30.11 | - | 48.4 | - | 43.3 | - | - | - |
2025-04-16 10:10 am | NNE | 6 | 8 | - | - | - | - | 30.11 | - | 48.7 | - | 43.2 | - | - | - |
2025-04-16 10:00 am | N | 8 | 11 | - | - | - | - | 30.11 | +0.02 | 48.7 | - | 43.5 | - | - | - |
2025-04-16 09:50 am | N | 10 | 12 | - | - | - | - | 30.10 | - | 48.6 | - | 43.5 | - | - | - |
2025-04-16 09:40 am | N | 11 | 13 | - | - | - | - | 30.10 | - | 48.4 | - | 43.0 | - | - | - |
2025-04-16 09:30 am | NNW | 11 | 13 | - | - | - | - | 30.10 | - | 48.4 | - | 42.8 | - | - | - |
2025-04-16 09:20 am | NNW | 10 | 11 | - | - | - | - | 30.10 | - | 48.2 | - | 42.6 | - | - | - |
2025-04-16 09:10 am | N | 11 | 12 | - | - | - | - | 30.10 | - | 48.0 | - | 42.3 | - | - | - |
2025-04-16 09:00 am | N | 10 | 12 | - | - | - | - | 30.10 | +0.02 | 48.0 | - | 42.3 | - | - | - |
2025-04-16 08:50 am | NNW | 8 | 9 | - | - | - | - | 30.10 | - | 48.0 | - | 41.7 | - | - | - |
2025-04-16 08:40 am | NNW | 7 | 8 | - | - | - | - | 30.09 | - | 47.8 | - | 41.2 | - | - | - |
2025-04-16 08:30 am | NNW | 7 | 8 | - | - | - | - | 30.09 | - | 47.8 | - | 41.2 | - | - | - |
2025-04-16 08:20 am | N | 8 | 9 | - | - | - | - | 30.10 | - | 47.8 | - | 41.0 | - | - | - |
2025-04-16 08:10 am | N | 7 | 9 | - | - | - | - | 30.10 | - | 47.7 | - | 40.6 | - | - | - |
2025-04-16 08:00 am | N | 7 | 8 | - | - | - | - | 30.10 | +0.01 | 47.7 | - | 40.1 | - | - | - |
2025-04-16 07:50 am | N | 7 | 8 | - | - | - | - | 30.10 | - | 47.7 | - | 39.7 | - | - | - |
2025-04-16 07:40 am | N | 6 | 8 | - | - | - | - | 30.10 | - | 47.8 | - | 39.7 | - | - | - |
2025-04-16 07:30 am | N | 6 | 8 | - | - | - | - | 30.10 | - | 47.8 | - | 39.6 | - | - | - |
2025-04-16 07:20 am | N | 8 | 10 | - | - | - | - | 30.10 | - | 47.8 | - | 39.2 | - | - | - |
2025-04-16 07:10 am | N | 9 | 10 | - | - | - | - | 30.09 | - | 48.0 | - | 39.0 | - | - | - |
2025-04-16 07:00 am | N | 8 | 10 | - | - | - | - | 30.09 | +0.01 | 48.0 | - | 38.8 | - | - | - |
2025-04-16 06:50 am | N | 8 | 10 | - | - | - | - | 30.09 | - | 48.0 | - | 38.5 | - | - | - |
2025-04-16 06:40 am | N | 7 | 9 | - | - | - | - | 30.09 | - | 48.2 | - | 38.1 | - | - | - |
2025-04-16 06:30 am | NNE | 7 | 9 | - | - | - | - | 30.09 | - | 48.2 | - | 37.9 | - | - | - |
2025-04-16 06:20 am | NE | 7 | 8 | - | - | - | - | 30.08 | - | 48.2 | - | 38.8 | - | - | - |
2025-04-16 06:10 am | ENE | 5 | 7 | - | - | - | - | 30.08 | - | 47.8 | - | 40.6 | - | - | - |
2025-04-16 06:00 am | ENE | 4 | 6 | - | - | - | - | 30.08 | +0.01 | 48.4 | - | 41.2 | - | - | - |
2025-04-16 05:50 am | ENE | 3 | 4 | - | - | - | - | 30.09 | - | 48.6 | - | 41.0 | - | - | - |
2025-04-16 05:40 am | ENE | 3 | 5 | - | - | - | - | 30.09 | - | 48.4 | - | 40.8 | - | - | - |
2025-04-16 05:30 am | NE | 1 | 4 | - | - | - | - | 30.08 | - | 47.5 | - | 41.5 | - | - | - |
2025-04-16 05:20 am | - | 0 | 2 | - | - | - | - | 30.08 | - | 46.8 | - | 42.8 | - | - | - |
2025-04-16 05:10 am | - | 0 | 2 | - | - | - | - | 30.08 | - | 46.9 | - | 44.1 | - | - | - |
2025-04-16 05:00 am | S | 2 | 7 | - | - | - | - | 30.08 | +0.00 | 47.3 | - | 45.3 | - | - | - |
2025-04-16 04:50 am | - | 0 | 2 | - | - | - | - | 30.08 | - | 47.5 | - | 45.5 | - | - | - |
2025-04-16 04:40 am | - | 0 | 2 | - | - | - | - | 30.09 | - | 47.5 | - | 45.1 | - | - | - |
2025-04-16 04:30 am | - | 0 | 1 | - | - | - | - | 30.08 | - | 47.7 | - | 45.0 | - | - | - |
2025-04-16 04:20 am | - | 0 | 1 | - | - | - | - | 30.08 | - | 47.8 | - | 44.6 | - | - | - |
2025-04-16 04:10 am | W | 2 | 2 | - | - | - | - | 30.08 | - | 47.8 | - | 44.4 | - | - | - |
2025-04-16 04:00 am | - | 0 | 2 | - | - | - | - | 30.07 | +0.00 | 47.5 | - | 44.2 | - | - | - |
2025-04-16 03:50 am | W | 1 | 2 | - | - | - | - | 30.07 | - | 47.7 | - | 44.6 | - | - | - |
2025-04-16 03:40 am | W | 2 | 3 | - | - | - | - | 30.07 | - | 47.8 | - | 45.0 | - | - | - |
2025-04-16 03:30 am | W | 3 | 4 | - | - | - | - | 30.08 | - | 47.8 | - | 45.0 | - | - | - |
2025-04-16 03:20 am | W | 3 | 4 | - | - | - | - | 30.08 | - | 48.0 | - | 45.1 | - | - | - |
2025-04-16 03:10 am | WSW | 4 | 4 | - | - | - | - | 30.07 | - | 48.0 | - | 45.1 | - | - | - |
2025-04-16 03:00 am | WSW | 4 | 4 | - | - | - | - | 30.07 | -0.01 | 48.2 | - | 45.1 | - | - | - |
2025-04-16 02:50 am | SW | 4 | 5 | - | - | - | - | 30.07 | - | 48.2 | - | 45.1 | - | - | - |
2025-04-16 02:40 am | SW | 4 | 5 | - | - | - | - | 30.07 | - | 48.2 | - | 45.0 | - | - | - |
2025-04-16 02:30 am | SW | 4 | 5 | - | - | - | - | 30.08 | - | 48.4 | - | 45.1 | - | - | - |
2025-04-16 02:20 am | SW | 4 | 5 | - | - | - | - | 30.08 | - | 48.4 | - | 45.0 | - | - | - |
2025-04-16 02:10 am | SSW | 4 | 4 | - | - | - | - | 30.08 | - | 48.4 | - | 45.0 | - | - | - |
2025-04-16 02:00 am | SSW | 2 | 3 | - | - | - | - | 30.08 | +0.01 | 48.4 | - | 45.0 | - | - | - |
2025-04-16 01:50 am | SSW | 1 | 2 | - | - | - | - | 30.08 | - | 48.4 | - | 44.8 | - | - | - |
2025-04-16 01:40 am | SSW | 2 | 3 | - | - | - | - | 30.08 | - | 48.6 | - | 45.0 | - | - | - |
2025-04-16 01:30 am | S | 2 | 3 | - | - | - | - | 30.08 | - | 48.6 | - | 45.0 | - | - | - |
2025-04-16 01:20 am | SSW | 3 | 4 | - | - | - | - | 30.08 | - | 48.7 | - | 44.8 | - | - | - |
2025-04-16 01:10 am | SSW | 3 | 4 | - | - | - | - | 30.08 | - | 48.7 | - | 44.6 | - | - | - |
2025-04-16 01:00 am | SSW | 2 | 3 | - | - | - | - | 30.08 | +0.00 | 48.7 | - | 44.4 | - | - | - |
2025-04-16 12:50 am | SW | 2 | 3 | - | - | - | - | 30.08 | - | 48.9 | - | 44.8 | - | - | - |
2025-04-16 12:40 am | WSW | 2 | 3 | - | - | - | - | 30.07 | - | 48.9 | - | 44.6 | - | - | - |
2025-04-16 12:30 am | W | 2 | 4 | - | - | - | - | 30.07 | - | 48.9 | - | 44.2 | - | - | - |
2025-04-16 12:20 am | W | 5 | 9 | - | - | - | - | 30.08 | - | 49.1 | - | 44.1 | - | - | - |
2025-04-16 12:10 am | W | 4 | 8 | - | - | - | - | 30.07 | - | 49.1 | - | 44.1 | - | - | - |
2025-04-16 12:00 am | W | 5 | 8 | - | - | - | - | 30.08 | +0.00 | 49.3 | - | 44.1 | - | - | - |
2025-04-15 11:50 pm | W | 9 | 11 | - | - | - | - | 30.08 | - | 49.5 | - | 44.2 | - | - | - |
2025-04-15 11:40 pm | W | 9 | 12 | - | - | - | - | 30.08 | - | 49.5 | - | 44.1 | - | - | - |
2025-04-15 11:30 pm | W | 10 | 12 | - | - | - | - | 30.08 | - | 49.6 | - | 44.1 | - | - | - |
2025-04-15 11:20 pm | W | 9 | 11 | - | - | - | - | 30.07 | - | 49.6 | - | 43.9 | - | - | - |
2025-04-15 11:10 pm | W | 11 | 12 | - | - | - | - | 30.07 | - | 49.6 | - | 43.9 | - | - | - |
2025-04-15 11:00 pm | W | 12 | 15 | - | - | - | - | 30.07 | +0.01 | 49.6 | - | 43.9 | - | - | - |
2025-04-15 10:50 pm | W | 14 | 15 | - | - | - | - | 30.06 | - | 49.6 | - | 43.9 | - | - | - |
2025-04-15 10:40 pm | W | 13 | 16 | - | - | - | - | 30.07 | - | 49.6 | - | 43.7 | - | - | - |
2025-04-15 10:30 pm | W | 14 | 16 | - | - | - | - | 30.07 | - | 49.6 | - | 44.1 | - | - | - |
2025-04-15 10:20 pm | W | 13 | 16 | - | - | - | - | 30.07 | - | 49.6 | - | 44.6 | - | - | - |
2025-04-15 10:10 pm | W | 14 | 16 | - | - | - | - | 30.07 | - | 49.6 | - | 44.4 | - | - | - |
2025-04-15 10:00 pm | W | 13 | 16 | - | - | - | - | 30.08 | +0.01 | 49.6 | - | 45.1 | - | - | - |
2025-04-15 09:50 pm | W | 15 | 18 | - | - | - | - | 30.07 | - | 49.6 | - | 45.5 | - | - | - |
2025-04-15 09:40 pm | W | 11 | 16 | - | - | - | - | 30.07 | - | 50.2 | - | 45.5 | - | - | - |
2025-04-15 09:30 pm | W | 11 | 13 | - | - | - | - | 30.08 | - | 50.7 | - | 44.2 | - | - | - |
2025-04-15 09:20 pm | W | 10 | 11 | - | - | - | - | 30.08 | - | 51.1 | - | 44.8 | - | - | - |
2025-04-15 09:10 pm | W | 10 | 11 | - | - | - | - | 30.08 | - | 50.4 | - | 45.3 | - | - | - |
2025-04-15 09:00 pm | W | 10 | 12 | - | - | - | - | 30.08 | +0.00 | 49.8 | - | 46.2 | - | - | - |
2025-04-15 08:50 pm | WNW | 10 | 12 | - | - | - | - | 30.07 | - | 49.6 | - | 46.4 | - | - | - |
2025-04-15 08:40 pm | WNW | 10 | 11 | - | - | - | - | 30.07 | - | 49.6 | - | 46.6 | - | - | - |
2025-04-15 08:30 pm | WNW | 9 | 11 | - | - | - | - | 30.07 | - | 49.6 | - | 46.8 | - | - | - |
2025-04-15 08:20 pm | WNW | 9 | 11 | - | - | - | - | 30.06 | - | 49.6 | - | 46.8 | - | - | - |
2025-04-15 08:10 pm | WNW | 9 | 10 | - | - | - | - | 30.06 | - | 49.8 | - | 46.9 | - | - | - |
2025-04-15 08:00 pm | WNW | 8 | 10 | - | - | - | - | 30.06 | -0.05 | 50.0 | - | 46.8 | - | - | - |
2025-04-15 07:50 pm | NW | 8 | 9 | - | - | - | - | 30.06 | - | 50.5 | - | 46.2 | - | - | - |
2025-04-15 07:40 pm | NW | 9 | 11 | - | - | - | - | 30.06 | - | 51.3 | - | 46.2 | - | - | - |
2025-04-15 07:30 pm | NW | 8 | 10 | - | - | - | - | 30.07 | - | 52.0 | - | 44.6 | - | - | - |
2025-04-15 07:20 pm | NW | 7 | 8 | - | - | - | - | 30.07 | - | 52.9 | - | 45.1 | - | - | - |
2025-04-15 07:10 pm | WNW | 5 | 7 | - | - | - | - | 30.07 | - | 52.7 | - | 42.8 | - | - | - |
2025-04-15 07:00 pm | WNW | 4 | 5 | - | - | - | - | 30.07 | -0.04 | 53.1 | - | 43.7 | - | - | - |
2025-04-15 06:50 pm | W | 4 | 5 | - | - | - | - | 30.07 | - | 53.8 | - | 42.1 | - | - | - |
2025-04-15 06:40 pm | W | 3 | 4 | - | - | - | - | 30.07 | - | 53.8 | - | 41.5 | - | - | - |
2025-04-15 06:30 pm | WSW | 4 | 5 | - | - | - | - | 30.07 | - | 53.4 | - | 41.9 | - | - | - |
2025-04-15 06:20 pm | WSW | 6 | 6 | - | - | - | - | 30.08 | - | 52.7 | - | 42.4 | - | - | - |
2025-04-15 06:10 pm | SW | 5 | 6 | - | - | - | - | 30.08 | - | 52.5 | - | 42.6 | - | - | - |
2025-04-15 06:00 pm | SW | 5 | 5 | - | - | - | - | 30.08 | -0.05 | 52.3 | - | 42.6 | - | - | - |
2025-04-15 05:50 pm | SW | 4 | 5 | - | - | - | - | 30.08 | - | 53.1 | - | 42.4 | - | - | - |
2025-04-15 05:40 pm | WSW | 2 | 4 | - | - | - | - | 30.09 | - | 53.4 | - | 42.4 | - | - | - |
2025-04-15 05:30 pm | WSW | 3 | 4 | - | - | - | - | 30.09 | - | 52.9 | - | 42.8 | - | - | - |
2025-04-15 05:20 pm | SW | 2 | 3 | - | - | - | - | 30.09 | - | 53.2 | - | 42.4 | - | - | - |
2025-04-15 05:10 pm | - | 0 | 2 | - | - | - | - | 30.10 | - | 53.4 | - | 42.8 | - | - | - |
2025-04-15 05:00 pm | SW | 2 | 2 | - | - | - | - | 30.11 | -0.02 | 53.8 | - | 43.0 | - | - | - |
2025-04-15 04:50 pm | W | 1 | 2 | - | - | - | - | 30.10 | - | 53.8 | - | 43.9 | - | - | - |
2025-04-15 04:40 pm | W | 1 | 3 | - | - | - | - | 30.11 | - | 53.4 | - | 43.7 | - | - | - |
2025-04-15 04:30 pm | W | 2 | 4 | - | - | - | - | 30.11 | - | 53.2 | - | 43.5 | - | - | - |
2025-04-15 04:20 pm | WNW | 2 | 2 | - | - | - | - | 30.11 | - | 53.4 | - | 43.0 | - | - | - |
2025-04-15 04:10 pm | - | 0 | 1 | - | - | - | - | 30.11 | - | 54.0 | - | 43.7 | - | - | - |
2025-04-15 04:00 pm | - | 0 | 1 | - | - | - | - | 30.11 | -0.03 | 54.5 | - | 44.1 | - | - | - |
2025-04-15 03:50 pm | - | 0 | 0 | - | - | - | - | 30.11 | - | 54.0 | - | 43.3 | - | - | - |
2025-04-15 03:40 pm | - | 0 | 1 | - | - | - | - | 30.11 | - | 53.6 | - | 43.2 | - | - | - |
2025-04-15 03:30 pm | - | 0 | 1 | - | - | - | - | 30.12 | - | 53.2 | - | 43.2 | - | - | - |
2025-04-15 03:20 pm | - | 0 | 2 | - | - | - | - | 30.12 | - | 52.5 | - | 43.0 | - | - | - |
2025-04-15 03:10 pm | WSW | 3 | 3 | - | - | - | - | 30.12 | - | 52.0 | - | 42.6 | - | - | - |
2025-04-15 03:00 pm | WSW | 3 | 5 | - | - | - | - | 30.12 | -0.02 | 51.8 | - | 42.8 | - | - | - |
2025-04-15 02:50 pm | WSW | 4 | 5 | - | - | - | - | 30.12 | - | 51.6 | - | 42.6 | - | - | - |