Buoy selection
Enter up to 10 buoy numbers, separated by commas or spaces.
Search buoys
Realtime buoy report
Buoy grcm4
Latest update: Jul 19, 2026, 21:00 UTC
Coordinates: 47.121, -88.545
Wind
7.0 kt
Average speed
Gust: —
Direction: 240 °
Waves
—
Dominant period: —
Average period: —
Direction: —
Temperatures
Air: 27.1 °C
Water: —
Dewpoint: 17.4 °C
Pressure
—
Tendency (3hr): —
Visibility: —
Tide: —
Recent observations
Last 12 readings
UTC timestamps
| Time | Wind (kt) | Gust (kt) | Dir | Wave Ht (m) | Wave Pd (s) | Water Temp (°C) |
|---|---|---|---|---|---|---|
| Jul 19, 2026, 21:00 | 7.0 kt | — | 240 ° | — | — | — |
| Jul 19, 2026, 20:40 | 8.0 kt | — | 240 ° | — | — | — |
| Jul 19, 2026, 20:20 | 7.0 kt | — | 230 ° | — | — | — |
| Jul 19, 2026, 20:00 | 7.0 kt | — | 240 ° | — | — | — |
| Jul 19, 2026, 19:40 | 9.9 kt | — | 230 ° | — | — | — |
| Jul 19, 2026, 19:20 | 8.0 kt | — | 230 ° | — | — | — |
| Jul 19, 2026, 19:00 | 12.1 kt | — | 230 ° | — | — | — |
| Jul 19, 2026, 18:40 | 9.9 kt | — | 230 ° | — | — | — |
| Jul 19, 2026, 18:20 | 11.1 kt | — | 230 ° | — | — | — |
| Jul 19, 2026, 18:00 | 8.9 kt | — | 230 ° | — | — | — |
| Jul 19, 2026, 17:40 | 8.9 kt | — | 240 ° | — | — | — |
| Jul 19, 2026, 17:20 | 8.0 kt | — | 230 ° | — | — | — |
Compare
Overlay another buoy
Pick a second buoy to overlay on the charts below.
Last 24 hours
Wind speed & gust
kt
grcm4 Speed: 0.0–12.1 kt grcm4 Gust: —
Last 24 hours
Waves
m / s
Height
grcm4: —
Period
grcm4: —
Last 24 hours
Water temperature
°C
grcm4: —
Last 24 hours
Sea level pressure
hPa
grcm4:
—
Units
Wind units
Measurements