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| Buoy 139 Umpqua Offshore Longitude = 124.54W Latitude = 43.77N FAQs | | Current Swell & Surf Analysis | | Buoy 139 | | 01:21:00 (GMT) on 09/29 | | Sea Height: | 6.9 ft | | Primary Swell Height: | 5.6 ft | | Primary Swell Period: | 13.9 secs | | Primary Swell Direction: | 297 degrees | | Surf Height: | 6.3-7.8 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) |
| 09/29 | 01:21:00 | 6.9 | 5.6 | 13.9 | 297 | 2 | 18.5 | 280 | 3 | 10.6 | 298 | 6.3 -7.8 | 13.9 | | 09/29 | 00:21:00 | 5.8 | 4.4 | 13.9 | 292 | 2.4 | 17.4 | 278 | 2.6 | 10.7 | 295 | 4.9 -6.1 | 13.9 | | 09/28 | 23:21:00 | 5.7 | 4.5 | 14 | 296 | 2.7 | 17.1 | 273 | 2.5 | 10.8 | 299 | 5 -6.2 | 14 | | 09/28 | 22:21:00 | 6 | 4.9 | 13.7 | 297 | 2.5 | 17.2 | 290 | 0.8 | 21.1 | 268 | 5.3 -6.7 | 13.7 | | 09/28 | 21:21:00 | 5.4 | 3.8 | 14.8 | 297 | 1.8 | 18.4 | 279 | 2.7 | 11.7 | 300 | 4.4 -5.5 | 14.8 | | 09/28 | 20:21:00 | 5.3 | 3.8 | 14.8 | 296 | 1.9 | 18.5 | 281 | 1.9 | 10.7 | 296 | 4.5 -5.6 | 14.8 | | 09/28 | 19:21:00 | 5.5 | 3.6 | 14.9 | 299 | 1.7 | 18.7 | 276 | 2 | 10.6 | 293 | 4.3 -5.3 | 14.9 | | 09/28 | 18:20:00 | 5.6 | 3.8 | 14.9 | 295 | 1.9 | 18.6 | 272 | 1.8 | 10.5 | 294 | 4.5 -5.6 | 14.9 | | 09/28 | 17:21:00 | 5.9 | 3.9 | 14.8 | 300 | 2 | 18.7 | 290 | 2 | 10.6 | 291 | 4.7 -5.8 | 14.8 | | 09/28 | 16:20:00 | 5.9 | 3.6 | 14.8 | 300 | 1.9 | 18.4 | 301 | 1.9 | 10.3 | 281 | 4.3 -5.4 | 14.8 | | 09/28 | 15:20:00 | 5.6 | 3.1 | 14.9 | 298 | 1.7 | 18.7 | 273 | 2.2 | 11.9 | 290 | 3.7 -4.6 | 14.9 | | 09/28 | 14:20:00 | 5.4 | 2.2 | 15.7 | 295 | 2.1 | 11.6 | 279 | 2 | 8.5 | 286 | 2.8 -3.5 | 15.7 | | 09/28 | 13:20:00 | 5.6 | 2.2 | 15.8 | 296 | 2 | 12.6 | 280 | 1.2 | 19.2 | 289 | 2.8 -3.5 | 15.8 | | 09/28 | 12:20:00 | 5.9 | 2.4 | 15.7 | 289 | 2.1 | 12.7 | 284 | 2.2 | 9.4 | 278 | 3 -3.8 | 15.7 | | 09/28 | 11:20:00 | 5.6 | 2.1 | 15.9 | 290 | 1.6 | 12.4 | 273 | 2.7 | 7.1 | 317 | 2.6 -3.3 | 15.9 | | 09/28 | 10:20:00 | 6 | 1.6 | 16.8 | 286 | 3.4 | 6.7 | 324 | 1.5 | 13.2 | 264 | 2.1 -2.6 | 16.8 | | 09/28 | 09:21:00 | 5.5 | 1.6 | 15.3 | 271 | 1.2 | 19.1 | 291 | 2.9 | 7.2 | 318 | 1.9 -2.4 | 15.3 | | 09/28 | 08:21:00 | 5.8 | 3.4 | 7.1 | 313 | 1.3 | 18.1 | 286 | 1.4 | 14.2 | 267 | 1.9 -2.4 | 7.1 | | 09/28 | 07:20:00 | 5.8 | 3.5 | 7.1 | 323 | 1.4 | 15.4 | 268 | 1 | 19 | 265 | 2 -2.5 | 7.1 | | 09/28 | 06:21:00 | 5.4 | 1.3 | 18.2 | 266 | 2.9 | 7.7 | 299 | 1.1 | 14.1 | 246 | 1.9 -2.4 | 18.2 | | 09/28 | 05:21:00 | 5.5 | 3.3 | 7.2 | 315 | 1.3 | 17.2 | 259 | 1.1 | 14.2 | 244 | 1.9 -2.4 | 7.2 | | 09/28 | 04:21:00 | 5.1 | 1.4 | 18.4 | 262 | 2.6 | 7.7 | 307 | 1.1 | 14 | 250 | 2 -2.5 | 18.4 | | 09/28 | 03:21:00 | 4.9 | 1.3 | 16.3 | 271 | 2.5 | 8.4 | 295 | 1.1 | 19.6 | 295 | 1.7 -2.1 | 16.3 | | 09/28 | 02:21:00 | 4.8 | 2.2 | 8.4 | 298 | 1.1 | 16.4 | 266 | 0.8 | 20.4 | 286 | 1.5 -1.9 | 8.4 |
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 |
| 000016604 ___0.027998 | |
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