See recent photos from TAO buoy 8N 110W
Station GSLM4 - Search and Rescue Data
Gravelly Shoals Light MI
44.018 N 83.537 W (44°1'6" N 83°32'14" W)
Average surface winds - six hour block.
| 05-20-2013 | 0000Z | 94 | 13 | 36 | - | 0 |
| 05-19-2013 | 1800Z | 112 | 5 | 41 | - | 0 |
| 05-19-2013 | 1200Z | 67 | 5 | 38 | - | 0 |
| 05-19-2013 | 0600Z | 50 | 3 | 42 | - | 0 |
| 05-19-2013 | 0000Z | 37 | 12 | 33 | - | 0 |
| 05-18-2013 | 1800Z | 24 | 9 | 42 | - | 0 |
| 05-18-2013 | 1200Z | 31 | 8 | 42 | - | 0 |
| 05-18-2013 | 0600Z | 22 | 8 | 41 | - | 0 |
| 05-18-2013 | 0000Z | 38 | 10 | 34 | - | 0 |
| 05-17-2013 | 1800Z | 19 | 9 | 42 | - | 0 |
| 05-17-2013 | 1200Z | 72 | 7 | 42 | - | 0 |
| 05-17-2013 | 0600Z | 40 | 8 | 42 | - | 0 |
| 05-17-2013 | 0000Z | 65 | 16 | 33 | - | 0 |
| 05-16-2013 | 1800Z | 83 | 11 | 41 | - | 0 |
| 05-16-2013 | 1200Z | 288 | 8 | 39 | - | 0 |
| 05-16-2013 | 0600Z | 248 | 11 | 41 | - | 0 |
| 05-16-2013 | 0000Z | 264 | 14 | 32 | - | 0 |
| 05-15-2013 | 1800Z | 261 | 19 | 41 | - | 0 |
| 05-15-2013 | 1200Z | 245 | 13 | 38 | - | 0 |
| 05-15-2013 | 0600Z | 143 | 10 | 39 | - | 0 |
| 05-15-2013 | 0000Z | 111 | 11 | 34 | - | 0 |
| 05-14-2013 | 1800Z | 135 | 19 | 40 | - | 0 |
| 05-14-2013 | 1200Z | 121 | 15 | 40 | - | 0 |
| 05-14-2013 | 0600Z | 217 | 10 | 40 | - | 0 |
| 05-14-2013 | 0000Z | 172 | 7 | 34 | - | 0 |
| 05-13-2013 | 1800Z | 254 | 10 | 40 | - | 0 |
| 05-13-2013 | 1200Z | 279 | 17 | 41 | - | 0 |
| 05-13-2013 | 0600Z | 275 | 17 | 40 | - | 0 |
| 05-13-2013 | 0000Z | 275 | 25 | 35 | - | 0 |
| 05-12-2013 | 1800Z | 267 | 32 | 41 | - | 0 |
| 05-12-2013 | 1200Z | 261 | 29 | 44 | - | 0 |
| 05-12-2013 | 0600Z | 244 | 26 | 47 | - | 0 |
| 05-12-2013 | 0000Z | 268 | 23 | 35 | - | 0 |
| 05-11-2013 | 1800Z | 182 | 11 | 40 | - | 0 |
| 05-11-2013 | 1200Z | 251 | 9 | 41 | - | 0 |
| 05-11-2013 | 0600Z | 314 | 12 | 42 | - | 0 |
| 05-11-2013 | 0000Z | 350 | 19 | 36 | - | 0 |
| 05-10-2013 | 1800Z | 6 | 27 | 41 | - | 0 |
| 05-10-2013 | 1200Z | 24 | 28 | 42 | - | 0 |
| 05-10-2013 | 0600Z | 27 | 23 | 46 | - | 0 |
| 05-10-2013 | 0000Z | 23 | 15 | 35 | - | 0 |
| 05-09-2013 | 1800Z | 105 | 5 | 41 | - | 0 |
| 05-09-2013 | 1200Z | 176 | 1 | 42 | - | 0 |
| 05-09-2013 | 0600Z | 23 | 2 | 42 | - | 0 |
| 05-09-2013 | 0000Z | 31 | 8 | 35 | - | 0 |
| 05-08-2013 | 1800Z | 45 | 10 | 39 | - | 0 |
| 05-08-2013 | 1200Z | 8 | 9 | 39 | - | 0 |
| 05-08-2013 | 0600Z | 13 | 6 | 42 | - | 0 |
| 05-08-2013 | 0000Z | 30 | 9 | 35 | - | 0 |
| 05-07-2013 | 1800Z | 26 | 10 | 41 | - | 0 |
| 05-07-2013 | 1200Z | 26 | 7 | 39 | - | 0 |
| 05-07-2013 | 0600Z | 39 | 7 | 42 | - | 0 |
| 05-07-2013 | 0000Z | 46 | 11 | 36 | - | 0 |
| 05-06-2013 | 1800Z | 29 | 10 | 42 | - | 0 |
| 05-06-2013 | 1200Z | 18 | 8 | 39 | - | 0 |
| 05-06-2013 | 0600Z | 30 | 9 | 38 | - | 0 |
| 05-06-2013 | 0000Z | 53 | 11 | 36 | - | 0 |
| 05-05-2013 | 1800Z | 19 | 10 | 40 | - | 0 |
| 05-05-2013 | 1200Z | 33 | 7 | 41 | - | 0 |
| 05-05-2013 | 0600Z | 42 | 6 | 41 | - | 0 |
| 05-05-2013 | 0000Z | 76 | 12 | 36 | - | 0 |
| 05-04-2013 | 1800Z | 36 | 10 | 39 | - | 0 |
| 05-04-2013 | 1200Z | 141 | 12 | 42 | - | 0 |
| 05-04-2013 | 0600Z | 111 | 14 | 42 | - | 0 |
| 05-04-2013 | 0000Z | 111 | 14 | 36 | - | 0 |
| 05-03-2013 | 1800Z | 43 | 7 | 38 | - | 0 |
| 05-03-2013 | 1200Z | 123 | 13 | 42 | - | 0 |
| 05-03-2013 | 0600Z | 118 | 14 | 40 | - | 0 |
| 05-03-2013 | 0000Z | 116 | 14 | 36 | - | 0 |
| 05-02-2013 | 1800Z | 1 | 10 | 42 | - | 0 |
| 05-02-2013 | 1200Z | 15 | 11 | 42 | - | 0 |
| 05-02-2013 | 0600Z | 142 | 15 | 39 | - | 0 |
| 05-02-2013 | 0000Z | 131 | 16 | 29 | - | 0 |
| 05-01-2013 | 1800Z | 150 | 6 | 42 | - | 0 |
| 05-01-2013 | 1200Z | 153 | 13 | 42 | - | 0 |
| 05-01-2013 | 0600Z | 153 | 17 | 37 | - | 0 |
| 05-01-2013 | 0000Z | 157 | 18 | 34 | - | 0 |
| 04-30-2013 | 1800Z | 160 | 11 | 40 | - | 0 |
| 04-30-2013 | 1200Z | 145 | 18 | 42 | - | 0 |
| 04-30-2013 | 0600Z | 149 | 18 | 42 | - | 0 |
| 04-30-2013 | 0000Z | 121 | 14 | 35 | - | 0 |
| 04-29-2013 | 1800Z | 137 | 8 | 39 | - | 0 |
| 04-29-2013 | 1200Z | 266 | 2 | 42 | - | 0 |
| 04-29-2013 | 0600Z | 39 | 3 | 42 | - | 0 |
| 04-29-2013 | 0000Z | 100 | 9 | 35 | - | 0 |
| 04-28-2013 | 1800Z | 12 | 8 | 40 | - | 0 |
| 04-28-2013 | 1200Z | 18 | 9 | 38 | - | 0 |
| 04-28-2013 | 0600Z | 146 | 13 | 41 | - | 0 |
| 04-28-2013 | 0000Z | 121 | 9 | 31 | - | 0 |
| 04-27-2013 | 1800Z | 154 | 6 | 39 | - | 0 |
| 04-27-2013 | 1200Z | 183 | 4 | 42 | - | 0 |
| 04-27-2013 | 0600Z | 156 | 11 | 34 | - | 0 |
| 04-27-2013 | 0000Z | 156 | 17 | 37 | - | 0 |
| 04-26-2013 | 1800Z | 154 | 9 | 42 | - | 0 |
| 04-26-2013 | 1200Z | 193 | 4 | 36 | - | 0 |
| 04-26-2013 | 0600Z | 239 | 7 | 37 | - | 0 |
| 04-26-2013 | 0000Z | 271 | 12 | 32 | - | 0 |
| 04-25-2013 | 1800Z | 235 | 18 | 40 | - | 0 |
| 04-25-2013 | 1200Z | 196 | 13 | 44 | - | 0 |
| 04-25-2013 | 0600Z | 217 | 14 | 35 | - | 0 |
| 04-25-2013 | 0000Z | 271 | 13 | 35 | - | 0 |
| 04-24-2013 | 1800Z | 299 | 12 | 42 | - | 0 |
| 04-24-2013 | 1200Z | 304 | 11 | 41 | - | 0 |
| 04-24-2013 | 0600Z | 315 | 14 | 37 | - | 0 |
| 04-24-2013 | 0000Z | 182 | 6 | 35 | - | 0 |
| 04-23-2013 | 1800Z | 165 | 9 | 41 | - | 0 |
| 04-23-2013 | 1200Z | 147 | 20 | 43 | - | 0 |
| 04-23-2013 | 0600Z | 139 | 15 | 42 | - | 0 |
| 04-23-2013 | 0000Z | 91 | 8 | 35 | - | 0 |
| 04-22-2013 | 1800Z | 26 | 5 | 42 | - | 0 |
| 04-22-2013 | 1200Z | 157 | 13 | 40 | - | 0 |
| 04-22-2013 | 0600Z | 150 | 17 | 42 | - | 0 |
| 04-22-2013 | 0000Z | 101 | 11 | 35 | - | 0 |
| 04-21-2013 | 1800Z | 64 | 2 | 40 | - | 0 |
| 04-21-2013 | 1200Z | 18 | 4 | 37 | - | 0 |
| 04-21-2013 | 0600Z | 326 | 8 | 39 | - | 0 |
| 04-21-2013 | 0000Z | 287 | 12 | 33 | - | 0 |
| 04-20-2013 | 1800Z | 268 | 19 | 43 | - | 0 |
| 04-20-2013 | 1200Z | 271 | 23 | 42 | - | 0 |
| 04-20-2013 | 0600Z | 258 | 24 | 36 | - | 0 |
| 04-20-2013 | 0000Z | 236 | 29 | 37 | - | 0 |
| 04-19-2013 | 1800Z | 210 | 32 | 45 | - | 0 |
| 04-19-2013 | 1200Z | 220 | 24 | 44 | - | 0 |
| 04-19-2013 | 0600Z | 162 | 18 | 42 | - | 0 |
| 04-19-2013 | 0000Z | 176 | 10 | 35 | - | 0 |
| 04-18-2013 | 1800Z | 125 | 4 | 41 | - | 0 |
| 04-18-2013 | 1200Z | 79 | 11 | 42 | - | 0 |
| 04-18-2013 | 0600Z | 55 | 12 | 42 | - | 0 |
| 04-18-2013 | 0000Z | 50 | 15 | 32 | - | 0 |
| 04-17-2013 | 1800Z | 41 | 16 | 41 | - | 0 |
| 04-17-2013 | 1200Z | 13 | 9 | 42 | - | 0 |
| 04-17-2013 | 0600Z | 34 | 8 | 42 | - | 0 |
| 04-17-2013 | 0000Z | 30 | 8 | 35 | - | 0 |
| 04-16-2013 | 1800Z | 242 | 10 | 39 | - | 0 |
| 04-16-2013 | 1200Z | 267 | 10 | 41 | - | 0 |
| 04-16-2013 | 0600Z | 231 | 7 | 42 | - | 0 |
| 04-16-2013 | 0000Z | 210 | 7 | 36 | - | 0 |
| 04-15-2013 | 1800Z | 158 | 17 | 39 | - | 0 |
| 04-15-2013 | 1200Z | 134 | 15 | 44 | - | 0 |
| 04-15-2013 | 0600Z | 76 | 12 | 42 | - | 0 |
| 04-15-2013 | 0000Z | 75 | 16 | 40 | - | 0 |
| 04-14-2013 | 1800Z | 86 | 6 | 39 | - | 0 |
| 04-14-2013 | 1200Z | 252 | 6 | 42 | - | 0 |
| 04-14-2013 | 0600Z | 236 | 19 | 42 | - | 0 |
| 04-14-2013 | 0000Z | 243 | 23 | 35 | - | 0 |
| 04-13-2013 | 1800Z | 222 | 18 | 38 | - | 0 |
| 04-13-2013 | 1200Z | 230 | 15 | 39 | - | 0 |
| 04-13-2013 | 0600Z | 230 | 18 | 41 | - | 0 |
| 04-13-2013 | 0000Z | 214 | 9 | 34 | - | 0 |
| 04-12-2013 | 1800Z | 219 | 2 | 41 | - | 0 |
| 04-12-2013 | 1200Z | 41 | 16 | 29 | - | 0 |
| 04-12-2013 | 0600Z | 30 | 20 | 1 | - | 0 |
| 04-12-2013 | 0000Z | - | - | 0 | - | 0 |
| 04-11-2013 | 1800Z | 51 | 25 | 34 | - | 0 |
| 04-11-2013 | 1200Z | 50 | 27 | 38 | - | 0 |
| 04-11-2013 | 0600Z | 31 | 18 | 39 | - | 0 |
| 04-11-2013 | 0000Z | 17 | 18 | 33 | - | 0 |
| 04-10-2013 | 1800Z | 18 | 21 | 43 | - | 0 |
| 04-10-2013 | 1200Z | 26 | 19 | 44 | - | 0 |
| 04-10-2013 | 0600Z | 7 | 11 | 42 | - | 0 |
| 04-10-2013 | 0000Z | 15 | 16 | 34 | - | 0 |
| 04-09-2013 | 1800Z | 34 | 6 | 42 | - | 0 |
| 04-09-2013 | 1200Z | 88 | 2 | 41 | - | 0 |
| 04-09-2013 | 0600Z | 296 | 6 | 42 | - | 0 |
| 04-09-2013 | 0000Z | 346 | 12 | 35 | - | 0 |
| 04-08-2013 | 1800Z | 61 | 11 | 42 | - | 0 |
| 04-08-2013 | 1200Z | 105 | 11 | 42 | - | 0 |
| 04-08-2013 | 0600Z | 65 | 5 | 42 | - | 0 |
| 04-08-2013 | 0000Z | 285 | 10 | 33 | - | 0 |
| 04-07-2013 | 1800Z | 259 | 21 | 42 | - | 0 |
| 04-07-2013 | 1200Z | 228 | 20 | 44 | - | 0 |
| 04-07-2013 | 0600Z | 153 | 24 | 43 | - | 0 |
| 04-07-2013 | 0000Z | 136 | 21 | 38 | - | 0 |
| 04-06-2013 | 1800Z | 136 | 21 | 44 | - | 0 |
| 04-06-2013 | 1200Z | 140 | 14 | 42 | - | 0 |
| 04-06-2013 | 0600Z | 147 | 4 | 40 | - | 0 |
| 04-06-2013 | 0000Z | 75 | 10 | 34 | - | 0 |
| 04-05-2013 | 1800Z | 45 | 11 | 41 | - | 0 |
| 04-05-2013 | 1200Z | 307 | 13 | 42 | - | 0 |
| 04-05-2013 | 0600Z | 320 | 13 | 36 | - | 0 |
| 04-05-2013 | 0000Z | 215 | 4 | 41 | - | 0 |
| 04-04-2013 | 1800Z | 190 | 5 | 42 | - | 0 |
| 04-04-2013 | 1200Z | 197 | 9 | 42 | - | 0 |
| 04-04-2013 | 0600Z | 176 | 6 | 40 | - | 0 |
| 04-04-2013 | 0000Z | 157 | 9 | 20 | - | 0 |
The six-hour averages are calculated as follows:
- The 0000Z average uses data from 2100Z to 0259Z.
- The 0600Z average uses data from 0300Z to 0859Z.
- The 1200Z average uses data from 0900Z to 1459Z.
- The 1800Z average uses data from 1500Z to 2059Z.
Display all available SAR data (up to 45 days)
Display gslm4 station page
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