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 |
12:00 pm | | 29.67 in |
Highest 1-minute Wind Speed |
Time (PDT) | WSPD | WDIR |
11:51 am | 10 kts | S ( 180 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 |
2025-03-31 11:50 am | S | 11 | 12 | - | - | - | - | 29.67 | - | 48.2 | - | 40.1 | - | - | - |
2025-03-31 11:40 am | S | 11 | 12 | - | - | - | - | 29.67 | - | 48.2 | - | 39.9 | - | - | - |
2025-03-31 11:30 am | S | 12 | 13 | - | - | - | - | 29.67 | - | 48.2 | - | 39.7 | - | - | - |
2025-03-31 11:20 am | S | 10 | 12 | - | - | - | - | 29.66 | - | 48.0 | - | 40.3 | - | - | - |
2025-03-31 11:10 am | S | 10 | 12 | - | - | - | - | 29.66 | - | 47.8 | - | 40.8 | - | - | - |
2025-03-31 11:00 am | S | 11 | 12 | - | - | - | - | 29.66 | +0.03 | 47.5 | - | 40.8 | - | - | - |
2025-03-31 10:50 am | S | 12 | 13 | - | - | - | - | 29.66 | - | 47.3 | - | 41.0 | - | - | - |
2025-03-31 10:40 am | S | 12 | 13 | - | - | - | - | 29.65 | - | 47.1 | - | 40.8 | - | - | - |
2025-03-31 10:30 am | S | 12 | 14 | - | - | - | - | 29.65 | - | 46.8 | - | 41.0 | - | - | - |
2025-03-31 10:20 am | S | 12 | 13 | - | - | - | - | 29.65 | - | 46.6 | - | 41.4 | - | - | - |
2025-03-31 10:10 am | S | 13 | 14 | - | - | - | - | 29.65 | - | 46.6 | - | 41.5 | - | - | - |
2025-03-31 10:00 am | SSW | 13 | 15 | - | - | - | - | 29.65 | +0.03 | 46.4 | - | 41.0 | - | - | - |
2025-03-31 09:50 am | SSW | 14 | 16 | - | - | - | - | 29.64 | - | 46.4 | - | 41.0 | - | - | - |
2025-03-31 09:40 am | SSW | 14 | 17 | - | - | - | - | 29.64 | - | 46.4 | - | 41.0 | - | - | - |
2025-03-31 09:30 am | S | 16 | 18 | - | - | - | - | 29.64 | - | 46.4 | - | 41.2 | - | - | - |
2025-03-31 09:20 am | S | 16 | 19 | - | - | - | - | 29.64 | - | 46.4 | - | 41.0 | - | - | - |
2025-03-31 09:10 am | S | 16 | 20 | - | - | - | - | 29.64 | - | 46.4 | - | 41.4 | - | - | - |
2025-03-31 09:00 am | S | 17 | 20 | - | - | - | - | 29.64 | +0.04 | 46.4 | - | 41.4 | - | - | - |
2025-03-31 08:50 am | S | 17 | 22 | - | - | - | - | 29.64 | - | 46.4 | - | 40.8 | - | - | - |
2025-03-31 08:40 am | S | 16 | 19 | - | - | - | - | 29.63 | - | 46.4 | - | 40.8 | - | - | - |
2025-03-31 08:30 am | S | 15 | 17 | - | - | - | - | 29.64 | - | 46.4 | - | 40.8 | - | - | - |
2025-03-31 08:20 am | S | 15 | 17 | - | - | - | - | 29.64 | - | 46.4 | - | 41.4 | - | - | - |
2025-03-31 08:10 am | S | 15 | 17 | - | - | - | - | 29.63 | - | 46.4 | - | 42.3 | - | - | - |
2025-03-31 08:00 am | S | 15 | 18 | - | - | - | - | 29.63 | +0.05 | 46.4 | - | 42.6 | - | - | - |
2025-03-31 07:50 am | S | 14 | 16 | - | - | - | - | 29.63 | - | 46.2 | - | 42.6 | - | - | - |
2025-03-31 07:40 am | S | 14 | 17 | - | - | - | - | 29.63 | - | 46.2 | - | 42.4 | - | - | - |
2025-03-31 07:30 am | S | 15 | 17 | - | - | - | - | 29.63 | - | 46.4 | - | 42.3 | - | - | - |
2025-03-31 07:20 am | S | 14 | 16 | - | - | - | - | 29.62 | - | 46.6 | - | 41.9 | - | - | - |
2025-03-31 07:10 am | S | 15 | 17 | - | - | - | - | 29.62 | - | 46.6 | - | 41.4 | - | - | - |
2025-03-31 07:00 am | S | 14 | 16 | - | - | - | - | 29.62 | +0.04 | 46.8 | - | 41.4 | - | - | - |
2025-03-31 06:50 am | S | 13 | 15 | - | - | - | - | 29.62 | - | 46.8 | - | 41.4 | - | - | - |
2025-03-31 06:40 am | S | 14 | 17 | - | - | - | - | 29.62 | - | 46.8 | - | 41.5 | - | - | - |
2025-03-31 06:30 am | S | 15 | 18 | - | - | - | - | 29.61 | - | 46.8 | - | 42.1 | - | - | - |
2025-03-31 06:20 am | S | 17 | 19 | - | - | - | - | 29.61 | - | 46.9 | - | 41.9 | - | - | - |
2025-03-31 06:10 am | S | 15 | 18 | - | - | - | - | 29.61 | - | 46.9 | - | 41.9 | - | - | - |
2025-03-31 06:00 am | S | 14 | 17 | - | - | - | - | 29.60 | +0.04 | 46.9 | - | 41.9 | - | - | - |
2025-03-31 05:50 am | S | 17 | 19 | - | - | - | - | 29.60 | - | 46.8 | - | 41.9 | - | - | - |
2025-03-31 05:40 am | S | 15 | 18 | - | - | - | - | 29.60 | - | 46.9 | - | 42.3 | - | - | - |
2025-03-31 05:30 am | S | 16 | 19 | - | - | - | - | 29.59 | - | 46.9 | - | 42.1 | - | - | - |
2025-03-31 05:20 am | S | 15 | 19 | - | - | - | - | 29.59 | - | 47.1 | - | 42.1 | - | - | - |
2025-03-31 05:10 am | S | 15 | 18 | - | - | - | - | 29.59 | - | 47.1 | - | 42.1 | - | - | - |
2025-03-31 05:00 am | S | 15 | 18 | - | - | - | - | 29.59 | +0.07 | 47.3 | - | 42.1 | - | - | - |
2025-03-31 04:50 am | S | 16 | 19 | - | - | - | - | 29.58 | - | 47.3 | - | 42.1 | - | - | - |
2025-03-31 04:40 am | S | 17 | 20 | - | - | - | - | 29.58 | - | 47.3 | - | 41.9 | - | - | - |
2025-03-31 04:30 am | S | 18 | 21 | - | - | - | - | 29.58 | - | 47.5 | - | 42.3 | - | - | - |
2025-03-31 04:20 am | S | 19 | 22 | - | - | - | - | 29.58 | - | 47.5 | - | 42.3 | - | - | - |
2025-03-31 04:10 am | S | 18 | 21 | - | - | - | - | 29.57 | - | 47.7 | - | 42.8 | - | - | - |
2025-03-31 04:00 am | S | 17 | 20 | - | - | - | - | 29.57 | +0.06 | 47.8 | - | 43.2 | - | - | - |
2025-03-31 03:50 am | S | 16 | 19 | - | - | - | - | 29.57 | - | 47.8 | - | 43.2 | - | - | - |
2025-03-31 03:40 am | S | 18 | 27 | - | - | - | - | 29.57 | - | 48.0 | - | 42.8 | - | - | - |
2025-03-31 03:30 am | S | 19 | 28 | - | - | - | - | 29.55 | - | 48.0 | - | 43.0 | - | - | - |
2025-03-31 03:20 am | S | 18 | 22 | - | - | - | - | 29.56 | - | 48.2 | - | 43.2 | - | - | - |
2025-03-31 03:10 am | S | 19 | 24 | - | - | - | - | 29.56 | - | 48.4 | - | 43.2 | - | - | - |
2025-03-31 03:00 am | S | 22 | 26 | - | - | - | - | 29.56 | +0.01 | 48.7 | - | 43.0 | - | - | - |
2025-03-31 02:50 am | S | 24 | 29 | - | - | - | - | 29.55 | - | 49.3 | - | 42.6 | - | - | - |
2025-03-31 02:40 am | S | 25 | 29 | - | - | - | - | 29.55 | - | 49.5 | - | 42.4 | - | - | - |
2025-03-31 02:30 am | S | 27 | 31 | - | - | - | - | 29.54 | - | 49.6 | - | 42.4 | - | - | - |
2025-03-31 02:20 am | S | 28 | 33 | - | - | - | - | 29.53 | - | 49.5 | - | 42.6 | - | - | - |
2025-03-31 02:10 am | S | 28 | 32 | - | - | - | - | 29.53 | - | 49.3 | - | 43.2 | - | - | - |
2025-03-31 02:00 am | S | 31 | 37 | - | - | - | - | 29.52 | -0.02 | 49.5 | - | 43.3 | - | - | - |
2025-03-31 01:50 am | S | 31 | 36 | - | - | - | - | 29.51 | - | 49.6 | - | 43.0 | - | - | - |
2025-03-31 01:40 am | S | 32 | 40 | - | - | - | - | 29.51 | - | 49.8 | - | 43.0 | - | - | - |
2025-03-31 01:30 am | S | 27 | 38 | - | - | - | - | 29.50 | - | 49.8 | - | 43.2 | - | - | - |
2025-03-31 01:20 am | S | 26 | 32 | - | - | - | - | 29.52 | - | 49.8 | - | 43.7 | - | - | - |
2025-03-31 01:10 am | S | 26 | 31 | - | - | - | - | 29.51 | - | 50.0 | - | 43.7 | - | - | - |
2025-03-31 01:00 am | SSE | 26 | 32 | - | - | - | - | 29.51 | -0.03 | 50.2 | - | 43.7 | - | - | - |
2025-03-31 12:50 am | SSE | 25 | 33 | - | - | - | - | 29.51 | - | 50.2 | - | 43.5 | - | - | - |
2025-03-31 12:40 am | SSE | 25 | 32 | - | - | - | - | 29.52 | - | 50.4 | - | 43.5 | - | - | - |
2025-03-31 12:30 am | SSE | 25 | 30 | - | - | - | - | 29.52 | - | 50.4 | - | 43.3 | - | - | - |
2025-03-31 12:20 am | SSE | 21 | 25 | - | - | - | - | 29.52 | - | 50.0 | - | 43.3 | - | - | - |
2025-03-31 12:10 am | SSE | 19 | 23 | - | - | - | - | 29.54 | - | 50.2 | - | 43.7 | - | - | - |
2025-03-31 12:00 am | SSE | 19 | 23 | - | - | - | - | 29.54 | +0.03 | 50.2 | - | 43.7 | - | - | - |
2025-03-30 11:50 pm | SSE | 20 | 24 | - | - | - | - | 29.54 | - | 50.2 | - | 43.7 | - | - | - |
2025-03-30 11:40 pm | SSE | 20 | 23 | - | - | - | - | 29.54 | - | 50.4 | - | 43.9 | - | - | - |
2025-03-30 11:30 pm | SSE | 17 | 22 | - | - | - | - | 29.54 | - | 50.2 | - | 44.1 | - | - | - |
2025-03-30 11:20 pm | SSE | 15 | 18 | - | - | - | - | 29.54 | - | 50.5 | - | 43.9 | - | - | - |
2025-03-30 11:10 pm | SSE | 15 | 17 | - | - | - | - | 29.54 | - | 50.5 | - | 43.7 | - | - | - |
2025-03-30 11:00 pm | SSE | 15 | 18 | - | - | - | - | 29.54 | +0.04 | 50.9 | - | 43.3 | - | - | - |
2025-03-30 10:50 pm | SE | 14 | 16 | - | - | - | - | 29.54 | - | 50.9 | - | 43.0 | - | - | - |
2025-03-30 10:40 pm | SSE | 13 | 14 | - | - | - | - | 29.54 | - | 50.9 | - | 42.8 | - | - | - |
2025-03-30 10:30 pm | S | 12 | 14 | - | - | - | - | 29.54 | - | 50.9 | - | 42.6 | - | - | - |
2025-03-30 10:20 pm | S | 12 | 14 | - | - | - | - | 29.54 | - | 51.6 | - | 41.9 | - | - | - |
2025-03-30 10:10 pm | SSE | 10 | 14 | - | - | - | - | 29.54 | - | 52.2 | - | 41.4 | - | - | - |
2025-03-30 10:00 pm | SSE | 8 | 11 | - | - | - | - | 29.54 | +0.02 | 52.0 | - | 41.7 | - | - | - |
2025-03-30 09:50 pm | SSE | 8 | 11 | - | - | - | - | 29.54 | - | 52.2 | - | 41.2 | - | - | - |
2025-03-30 09:40 pm | SSE | 8 | 10 | - | - | - | - | 29.54 | - | 51.1 | - | 42.4 | - | - | - |
2025-03-30 09:30 pm | SSE | 7 | 9 | - | - | - | - | 29.53 | - | 52.2 | - | 41.2 | - | - | - |
2025-03-30 09:20 pm | SE | 8 | 10 | - | - | - | - | 29.53 | - | 51.8 | - | 41.9 | - | - | - |
2025-03-30 09:10 pm | E | 5 | 8 | - | - | - | - | 29.52 | - | 51.8 | - | 41.9 | - | - | - |
2025-03-30 09:00 pm | W | 4 | 9 | - | - | - | - | 29.52 | -0.02 | 50.5 | - | 43.0 | - | - | - |
2025-03-30 08:50 pm | SSW | 2 | 4 | - | - | - | - | 29.51 | - | 49.8 | - | 43.7 | - | - | - |
2025-03-30 08:40 pm | S | 4 | 7 | - | - | - | - | 29.51 | - | 50.0 | - | 43.7 | - | - | - |
2025-03-30 08:30 pm | SSE | 5 | 8 | - | - | - | - | 29.52 | - | 49.8 | - | 43.3 | - | - | - |
2025-03-30 08:20 pm | ENE | 8 | 9 | - | - | - | - | 29.52 | - | 49.3 | - | 42.4 | - | - | - |
2025-03-30 08:10 pm | ENE | 10 | 13 | - | - | - | - | 29.51 | - | 49.6 | - | 41.9 | - | - | - |
2025-03-30 08:00 pm | ENE | 12 | 13 | - | - | - | - | 29.50 | -0.06 | 49.5 | - | 42.3 | - | - | - |
2025-03-30 07:50 pm | ENE | 12 | 14 | - | - | - | - | 29.50 | - | 49.5 | - | 42.1 | - | - | - |
2025-03-30 07:40 pm | ENE | 13 | 16 | - | - | - | - | 29.50 | - | 49.3 | - | 42.3 | - | - | - |
2025-03-30 07:30 pm | ENE | 14 | 16 | - | - | - | - | 29.50 | - | 49.3 | - | 42.6 | - | - | - |
2025-03-30 07:20 pm | ENE | 15 | 16 | - | - | - | - | 29.50 | - | 49.5 | - | 42.6 | - | - | - |
2025-03-30 07:10 pm | ENE | 14 | 16 | - | - | - | - | 29.51 | - | 49.8 | - | 42.4 | - | - | - |
2025-03-30 07:00 pm | ENE | 14 | 16 | - | - | - | - | 29.52 | -0.08 | 49.8 | - | 43.0 | - | - | - |
2025-03-30 06:50 pm | NE | 13 | 15 | - | - | - | - | 29.52 | - | 49.8 | - | 43.2 | - | - | - |
2025-03-30 06:40 pm | NE | 14 | 16 | - | - | - | - | 29.52 | - | 49.8 | - | 43.0 | - | - | - |
2025-03-30 06:30 pm | NE | 13 | 15 | - | - | - | - | 29.52 | - | 50.4 | - | 42.6 | - | - | - |
2025-03-30 06:20 pm | NE | 12 | 14 | - | - | - | - | 29.53 | - | 49.6 | - | 43.2 | - | - | - |
2025-03-30 06:10 pm | NE | 13 | 14 | - | - | - | - | 29.53 | - | 49.8 | - | 43.0 | - | - | - |
2025-03-30 06:00 pm | NE | 8 | 12 | - | - | - | - | 29.54 | -0.10 | 49.3 | - | 43.5 | - | - | - |
2025-03-30 05:50 pm | NE | 6 | 7 | - | - | - | - | 29.54 | - | 49.8 | - | 43.2 | - | - | - |
2025-03-30 05:40 pm | ENE | 5 | 6 | - | - | - | - | 29.55 | - | 50.0 | - | 42.4 | - | - | - |
2025-03-30 05:30 pm | ENE | 5 | 6 | - | - | - | - | 29.55 | - | 50.2 | - | 41.9 | - | - | - |
2025-03-30 05:20 pm | NNE | 5 | 6 | - | - | - | - | 29.56 | - | 49.6 | - | 43.0 | - | - | - |
2025-03-30 05:10 pm | N | 5 | 6 | - | - | - | - | 29.56 | - | 48.7 | - | 44.2 | - | - | - |
2025-03-30 05:00 pm | N | 4 | 7 | - | - | - | - | 29.56 | -0.11 | 48.7 | - | 44.4 | - | - | - |
2025-03-30 04:50 pm | NNW | 6 | 7 | - | - | - | - | 29.57 | - | 48.6 | - | 44.1 | - | - | - |
2025-03-30 04:40 pm | NW | 5 | 7 | - | - | - | - | 29.57 | - | 48.9 | - | 44.2 | - | - | - |
2025-03-30 04:30 pm | NW | 6 | 6 | - | - | - | - | 29.58 | - | 49.6 | - | 42.4 | - | - | - |
2025-03-30 04:20 pm | NW | 6 | 7 | - | - | - | - | 29.59 | - | 50.4 | - | 41.4 | - | - | - |
2025-03-30 04:10 pm | NNW | 6 | 6 | - | - | - | - | 29.59 | - | 50.4 | - | 41.0 | - | - | - |
2025-03-30 04:00 pm | NNW | 6 | 6 | - | - | - | - | 29.59 | -0.10 | 50.0 | - | 40.8 | - | - | - |
2025-03-30 03:50 pm | NNW | 7 | 7 | - | - | - | - | 29.60 | - | 49.5 | - | 41.0 | - | - | - |
2025-03-30 03:40 pm | NW | 7 | 8 | - | - | - | - | 29.60 | - | 48.2 | - | 43.2 | - | - | - |
2025-03-30 03:30 pm | NW | 7 | 7 | - | - | - | - | 29.61 | - | 48.6 | - | 44.1 | - | - | - |
2025-03-30 03:20 pm | NW | 6 | 7 | - | - | - | - | 29.62 | - | 48.9 | - | 43.0 | - | - | - |
2025-03-30 03:10 pm | NNW | 6 | 8 | - | - | - | - | 29.63 | - | 49.1 | - | 42.4 | - | - | - |
2025-03-30 03:00 pm | NNW | 6 | 6 | - | - | - | - | 29.64 | -0.10 | 49.1 | - | 40.8 | - | - | - |
2025-03-30 02:50 pm | NNW | 6 | 6 | - | - | - | - | 29.64 | - | 49.3 | - | 39.6 | - | - | - |
2025-03-30 02:40 pm | NNW | 5 | 6 | - | - | - | - | 29.65 | - | 48.9 | - | 39.0 | - | - | - |
2025-03-30 02:30 pm | NNW | 5 | 5 | - | - | - | - | 29.65 | - | 47.8 | - | 41.2 | - | - | - |
2025-03-30 02:20 pm | NW | 5 | 6 | - | - | - | - | 29.66 | - | 48.0 | - | 41.0 | - | - | - |
2025-03-30 02:10 pm | NW | 5 | 6 | - | - | - | - | 29.66 | - | 47.3 | - | 39.9 | - | - | - |
2025-03-30 02:00 pm | NNW | 4 | 6 | - | - | - | - | 29.67 | -0.10 | 47.3 | - | 41.0 | - | - | - |
2025-03-30 01:50 pm | NNW | 4 | 5 | - | - | - | - | 29.68 | - | 47.5 | - | 40.8 | - | - | - |
2025-03-30 01:40 pm | N | 3 | 4 | - | - | - | - | 29.68 | - | 47.7 | - | 41.0 | - | - | - |
2025-03-30 01:30 pm | NNE | 5 | 6 | - | - | - | - | 29.69 | - | 47.3 | - | 40.1 | - | - | - |
2025-03-30 01:20 pm | NNE | 5 | 6 | - | - | - | - | 29.69 | - | 47.3 | - | 40.8 | - | - | - |
2025-03-30 01:10 pm | NE | 7 | 9 | - | - | - | - | 29.70 | - | 47.5 | - | 39.4 | - | - | - |
2025-03-30 01:00 pm | NE | 9 | 9 | - | - | - | - | 29.70 | -0.10 | 47.1 | - | 39.0 | - | - | - |
2025-03-30 12:50 pm | NE | 8 | 9 | - | - | - | - | 29.71 | - | 47.1 | - | 39.6 | - | - | - |
2025-03-30 12:40 pm | NE | 7 | 8 | - | - | - | - | 29.71 | - | 46.6 | - | 39.9 | - | - | - |
2025-03-30 12:30 pm | ENE | 7 | 8 | - | - | - | - | 29.72 | - | 46.4 | - | 40.1 | - | - | - |
2025-03-30 12:20 pm | NE | 7 | 7 | - | - | - | - | 29.72 | - | 46.6 | - | 39.9 | - | - | - |
2025-03-30 12:10 pm | NE | 7 | 8 | - | - | - | - | 29.73 | - | 46.4 | - | 39.9 | - | - | - |
2025-03-30 12:00 pm | NE | 7 | 7 | - | - | - | - | 29.74 | -0.08 | 46.2 | - | 40.1 | - | - | - |
2025-03-30 11:50 am | NE | 7 | 8 | - | - | - | - | 29.74 | - | 45.9 | - | 39.6 | - | - | - |