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| Buoy 139 Umpqua Offshore Longitude = 124.54W Latitude = 43.77N FAQs | | Current Swell & Surf Analysis | | Buoy 139 | | 03:21:00 (GMT) on 05/01 | | Sea Height: | 6.1 ft | | Primary Swell Height: | 3.8 ft | | Primary Swell Period: | 12.3 secs | | Primary Swell Direction: | 292 degrees | | Surf Height: | 3.8-4.7 ft |
Date (Month - Day) | Time (GMT) | Combined Sea Height [>5 secs] (ft) | Primary Swell | Secondary Swell | Tertiary Swell | Estimated Surf Height (ft) | Primary Swell Period (secs) | Height (ft) | Period (secs) | Diection (deg) | Height (ft) | Period (secs) | Direction (deg) | Height (ft) | Period (secs) | Direction (deg) |
| 05/01 | 03:21:00 | 6.1 | 3.8 | 12.3 | 292 | 1.5 | 15.4 | 297 | 2.1 | 9.1 | 292 | 3.8 -4.7 | 12.3 | | 05/01 | 02:21:00 | 6 | 3.9 | 12.8 | 288 | 2.2 | 9.5 | 288 | 2.4 | 6.3 | 326 | 4 -5 | 12.8 | | 05/01 | 01:21:00 | 6.2 | 3.8 | 12.9 | 292 | 2.4 | 9.5 | 293 | 2.6 | 6.2 | 329 | 3.9 -4.9 | 12.9 | | 05/01 | 00:21:00 | 6.3 | 4.2 | 12.9 | 290 | 2.1 | 9.6 | 288 | 2.5 | 6.3 | 329 | 4.3 -5.4 | 12.9 | | 04/30 | 23:21:00 | 5.9 | 3.9 | 12.9 | 288 | 2.3 | 9.5 | 290 | 2.2 | 6.5 | 329 | 4 -5 | 12.9 | | 04/30 | 22:21:00 | 5.9 | 4 | 13.1 | 287 | 2.2 | 10 | 291 | 2.6 | 6.5 | 333 | 4.2 -5.3 | 13.1 | | 04/30 | 21:21:00 | 5.6 | 3.8 | 12.9 | 291 | 1.9 | 9.6 | 288 | 0.9 | 16.6 | 280 | 3.9 -4.9 | 12.9 | | 04/30 | 20:21:00 | 5.5 | 3.6 | 13.1 | 286 | 1.2 | 16.5 | 265 | 2 | 9.7 | 288 | 3.8 -4.7 | 13.1 | | 04/30 | 19:21:00 | 6 | 3.8 | 13 | 290 | 2.1 | 9.6 | 288 | 1.1 | 16.6 | 285 | 3.9 -4.9 | 13 | | 04/30 | 18:21:00 | 5.6 | 3.4 | 13.2 | 295 | 1.2 | 16.4 | 304 | 1.9 | 10.1 | 293 | 3.6 -4.5 | 13.2 | | 04/30 | 17:21:00 | 6.4 | 4 | 13.6 | 288 | 2.4 | 10.6 | 290 | 2.8 | 6.8 | 334 | 4.3 -5.4 | 13.6 | | 04/30 | 16:21:00 | 6.3 | 4.1 | 13.1 | 298 | 1.3 | 16.5 | 298 | 2.5 | 6.8 | 332 | 4.3 -5.4 | 13.1 | | 04/30 | 15:21:00 | 6.7 | 4.7 | 13 | 296 | 2.1 | 9.5 | 297 | 1.2 | 16.5 | 274 | 4.9 -6.1 | 13 | | 04/30 | 14:21:00 | 6.8 | 4.1 | 13.4 | 298 | 2.3 | 10 | 295 | 1.1 | 16.8 | 276 | 4.4 -5.5 | 13.4 | | 04/30 | 13:21:00 | 7.2 | 4.6 | 13 | 296 | 1.4 | 16.5 | 306 | 3.1 | 6.7 | 338 | 4.8 -6 | 13 | | 04/30 | 12:21:00 | 7.2 | 4.4 | 13 | 295 | 2.3 | 9.6 | 299 | 1.3 | 16.8 | 299 | 4.6 -5.8 | 13 | | 04/30 | 11:21:00 | 7.7 | 5.2 | 13 | 298 | 1.5 | 16.7 | 311 | 3.1 | 6.8 | 336 | 5.4 -6.7 | 13 | | 04/30 | 10:21:00 | 7.4 | 4.7 | 13.5 | 295 | 1.4 | 16.8 | 309 | 3.2 | 6.6 | 336 | 5.1 -6.4 | 13.5 | | 04/30 | 09:21:00 | 7.4 | 4.8 | 13.2 | 298 | 1.5 | 16.7 | 310 | 2.3 | 10.1 | 292 | 5 -6.3 | 13.2 | | 04/30 | 08:21:00 | 7.2 | 3.9 | 13.8 | 295 | 2.3 | 10.5 | 300 | 2.9 | 7 | 332 | 4.3 -5.4 | 13.8 | | 04/30 | 07:21:00 | 7.3 | 3.9 | 13.2 | 295 | 1.6 | 16.6 | 299 | 2.1 | 10 | 299 | 4.1 -5.2 | 13.2 | | 04/30 | 06:21:00 | 7 | 3.9 | 13.9 | 296 | 2.1 | 10.5 | 291 | 2.8 | 6.3 | 339 | 4.4 -5.4 | 13.9 | | 04/30 | 05:21:00 | 6.8 | 3.5 | 14.1 | 292 | 2.3 | 11 | 286 | 2.9 | 6.1 | 344 | 3.9 -4.9 | 14.1 | | 04/30 | 04:21:00 | 7.3 | 4 | 14.5 | 295 | 2.3 | 11 | 289 | 3 | 6.1 | 347 | 4.6 -5.8 | 14.5 |
Surf Height Scale| Size Scale (ft) | | >1 | 1-2 | 2-3 | 3-4 | 4-5 | 5-6 | 6-7 | 7-8 | 8-9 | 9-10 | 10-11 | 11-12 | 12-13 | 13-14 | 14-15 | 15-20 | 20-25 | 25-30 | 30-35 | 35-40 | 40-45 | 45+ |
Swell Period Scal| CDIP Period Scale (secs) | | 6.3 | 6.7 | 7.1 | 7.7 | 8.3 | 9.1 | 10 | 10.5 | 11.1 | 11.8 | 12.5 | 13.3 | 14.3 | 15.4 | 16.7 | 18.2 | 20 | 22.2 | 25 | 28.6 | 33.3 | 40 |
| 000016259 ___0.023326 | |
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