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Station GSLM4 - Search and Rescue Data
Gravelly Shoal Light, MI
44.018 N 83.537 W (44°1'6" N 83°32'14" W)
Average surface winds - six hour block.
| 07-27-2021 | 0600Z | 241 | 10 | 23 | - | 0 | 76 | 23 | - | 0 |
| 07-27-2021 | 0000Z | 264 | 4 | 36 | - | 0 | 83 | 36 | - | 0 |
| 07-26-2021 | 1800Z | 260 | 8 | 36 | - | 0 | 80 | 36 | - | 0 |
| 07-26-2021 | 1200Z | 238 | 8 | 36 | - | 0 | 70 | 36 | - | 0 |
| 07-26-2021 | 0600Z | 262 | 6 | 36 | - | 0 | 74 | 36 | - | 0 |
| 07-26-2021 | 0000Z | 288 | 7 | 36 | - | 0 | 82 | 36 | - | 0 |
| 07-25-2021 | 1800Z | 267 | 12 | 36 | - | 0 | 80 | 36 | - | 0 |
| 07-25-2021 | 1200Z | 245 | 10 | 36 | - | 0 | 71 | 36 | - | 0 |
| 07-25-2021 | 0600Z | 236 | 7 | 36 | - | 0 | 72 | 36 | - | 0 |
| 07-25-2021 | 0000Z | 216 | 4 | 36 | - | 0 | 73 | 36 | - | 0 |
| 07-24-2021 | 1800Z | 160 | 7 | 36 | - | 0 | 75 | 36 | - | 0 |
| 07-24-2021 | 1200Z | 154 | 10 | 36 | - | 0 | 71 | 36 | - | 0 |
| 07-24-2021 | 0600Z | 151 | 17 | 36 | - | 0 | 71 | 36 | - | 0 |
| 07-24-2021 | 0000Z | 149 | 5 | 36 | - | 0 | 75 | 36 | - | 0 |
| 07-23-2021 | 1800Z | 148 | 6 | 36 | - | 0 | 72 | 36 | - | 0 |
| 07-23-2021 | 1200Z | 151 | 10 | 36 | - | 0 | 69 | 36 | - | 0 |
| 07-23-2021 | 0600Z | 150 | 12 | 36 | - | 0 | 70 | 36 | - | 0 |
| 07-23-2021 | 0000Z | 145 | 8 | 36 | - | 0 | 72 | 36 | - | 0 |
| 07-22-2021 | 1800Z | 204 | 4 | 36 | - | 0 | 70 | 36 | - | 0 |
| 07-22-2021 | 1200Z | 248 | 6 | 36 | - | 0 | 66 | 36 | - | 0 |
| 07-22-2021 | 0600Z | 314 | 1 | 36 | - | 0 | 67 | 36 | - | 0 |
| 07-22-2021 | 0000Z | 56 | 9 | 36 | - | 0 | 67 | 36 | - | 0 |
| 07-21-2021 | 1800Z | 43 | 13 | 36 | - | 0 | 66 | 36 | - | 0 |
| 07-21-2021 | 1200Z | 344 | 13 | 36 | - | 0 | 65 | 36 | - | 0 |
| 07-21-2021 | 0600Z | 26 | 16 | 36 | - | 0 | 65 | 36 | - | 0 |
| 07-21-2021 | 0000Z | 31 | 18 | 36 | - | 0 | 67 | 36 | - | 0 |
| 07-20-2021 | 1800Z | 351 | 4 | 36 | - | 0 | 72 | 36 | - | 0 |
| 07-20-2021 | 1200Z | 227 | 11 | 36 | - | 0 | 71 | 36 | - | 0 |
| 07-20-2021 | 0600Z | 260 | 8 | 36 | - | 0 | 74 | 36 | - | 0 |
| 07-20-2021 | 0000Z | 223 | 7 | 36 | - | 0 | 78 | 36 | - | 0 |
| 07-19-2021 | 1800Z | 202 | 3 | 30 | - | 0 | 75 | 30 | - | 0 |
| 07-19-2021 | 1200Z | 268 | 4 | 36 | - | 0 | 70 | 36 | - | 0 |
| 07-19-2021 | 0600Z | 301 | 9 | 36 | - | 0 | 72 | 36 | - | 0 |
| 07-19-2021 | 0000Z | 270 | 4 | 36 | - | 0 | 78 | 36 | - | 0 |
| 07-18-2021 | 1800Z | 208 | 2 | 36 | - | 0 | 74 | 36 | - | 0 |
| 07-18-2021 | 1200Z | 289 | 6 | 36 | - | 0 | 68 | 36 | - | 0 |
| 07-18-2021 | 0600Z | 284 | 5 | 36 | - | 0 | 69 | 36 | - | 0 |
| 07-18-2021 | 0000Z | 32 | 5 | 36 | - | 0 | 71 | 36 | - | 0 |
| 07-17-2021 | 1800Z | 25 | 10 | 36 | - | 0 | 69 | 36 | - | 0 |
| 07-17-2021 | 1200Z | 39 | 13 | 36 | - | 0 | 68 | 36 | - | 0 |
| 07-17-2021 | 0600Z | 51 | 12 | 36 | - | 0 | 67 | 36 | - | 0 |
| 07-17-2021 | 0000Z | 36 | 12 | 36 | - | 0 | 67 | 36 | - | 0 |
| 07-16-2021 | 1800Z | 37 | 12 | 36 | - | 0 | 67 | 36 | - | 0 |
| 07-16-2021 | 1200Z | 47 | 11 | 36 | - | 0 | 67 | 36 | - | 0 |
| 07-16-2021 | 0600Z | 328 | 9 | 36 | - | 0 | 68 | 36 | - | 0 |
| 07-16-2021 | 0000Z | 280 | 11 | 36 | - | 0 | 73 | 36 | - | 0 |
| 07-15-2021 | 1800Z | 229 | 16 | 36 | - | 0 | 73 | 36 | - | 0 |
| 07-15-2021 | 1200Z | 153 | 10 | 36 | - | 0 | 73 | 36 | - | 0 |
| 07-15-2021 | 0600Z | 153 | 11 | 36 | - | 0 | 74 | 36 | - | 0 |
| 07-15-2021 | 0000Z | 205 | 8 | 36 | - | 0 | 77 | 36 | - | 0 |
| 07-14-2021 | 1800Z | 151 | 8 | 36 | - | 0 | 74 | 36 | - | 0 |
| 07-14-2021 | 1200Z | 224 | 11 | 36 | - | 0 | 68 | 36 | - | 0 |
| 07-14-2021 | 0600Z | 239 | 11 | 36 | - | 0 | 70 | 36 | - | 0 |
| 07-14-2021 | 0000Z | 224 | 9 | 36 | - | 0 | 70 | 36 | - | 0 |
| 07-13-2021 | 1800Z | 230 | 6 | 36 | - | 0 | 70 | 36 | - | 0 |
| 07-13-2021 | 1200Z | 128 | 8 | 36 | - | 0 | 69 | 36 | - | 0 |
| 07-13-2021 | 0600Z | 92 | 7 | 36 | - | 0 | 69 | 36 | - | 0 |
| 07-13-2021 | 0000Z | 49 | 11 | 36 | - | 0 | 68 | 36 | - | 0 |
| 07-12-2021 | 1800Z | 35 | 12 | 36 | - | 0 | 67 | 36 | - | 0 |
| 07-12-2021 | 1200Z | 56 | 11 | 36 | - | 0 | 67 | 36 | - | 0 |
| 07-12-2021 | 0600Z | 27 | 12 | 36 | - | 0 | 66 | 36 | - | 0 |
| 07-12-2021 | 0000Z | 21 | 13 | 36 | - | 0 | 67 | 36 | - | 0 |
| 07-11-2021 | 1800Z | 30 | 13 | 36 | - | 0 | 65 | 36 | - | 0 |
| 07-11-2021 | 1200Z | 47 | 11 | 36 | - | 0 | 66 | 36 | - | 0 |
| 07-11-2021 | 0600Z | 90 | 11 | 36 | - | 0 | 66 | 36 | - | 0 |
| 07-11-2021 | 0000Z | 63 | 11 | 36 | - | 0 | 68 | 36 | - | 0 |
| 07-10-2021 | 1800Z | 37 | 3 | 36 | - | 0 | 68 | 36 | - | 0 |
| 07-10-2021 | 1200Z | 28 | 1 | 36 | - | 0 | 65 | 36 | - | 0 |
| 07-10-2021 | 0600Z | 117 | 5 | 36 | - | 0 | 65 | 36 | - | 0 |
| 07-10-2021 | 0000Z | 81 | 6 | 36 | - | 0 | 64 | 36 | - | 0 |
| 07-09-2021 | 1800Z | 68 | 6 | 34 | - | 0 | 62 | 34 | - | 0 |
| 07-09-2021 | 1200Z | 323 | 8 | 35 | - | 0 | 59 | 35 | - | 0 |
| 07-09-2021 | 0600Z | 325 | 11 | 35 | - | 0 | 59 | 35 | - | 0 |
| 07-09-2021 | 0000Z | 352 | 12 | 35 | - | 0 | 59 | 35 | - | 0 |
| 07-08-2021 | 1800Z | 342 | 12 | 35 | - | 0 | 61 | 35 | - | 0 |
| 07-08-2021 | 1200Z | 336 | 14 | 35 | - | 0 | 60 | 35 | - | 0 |
| 07-08-2021 | 0600Z | 8 | 14 | 35 | - | 0 | 61 | 35 | - | 0 |
| 07-08-2021 | 0000Z | 44 | 16 | 35 | - | 0 | 62 | 35 | - | 0 |
| 07-07-2021 | 1800Z | 37 | 17 | 34 | - | 0 | 62 | 34 | - | 0 |
| 07-07-2021 | 1200Z | 24 | 13 | 35 | - | 0 | 63 | 35 | - | 0 |
| 07-07-2021 | 0600Z | 15 | 11 | 35 | - | 0 | 66 | 35 | - | 0 |
| 07-07-2021 | 0000Z | 15 | 11 | 35 | - | 0 | 75 | 35 | - | 0 |
| 07-06-2021 | 1800Z | 90 | 2 | 35 | - | 0 | 79 | 35 | - | 0 |
| 07-06-2021 | 1200Z | 246 | 11 | 35 | - | 0 | 73 | 35 | - | 0 |
| 07-06-2021 | 0600Z | 234 | 11 | 35 | - | 0 | 76 | 35 | - | 0 |
| 07-06-2021 | 0000Z | 226 | 18 | 35 | - | 0 | 80 | 35 | - | 0 |
| 07-05-2021 | 1800Z | 199 | 8 | 34 | - | 0 | 78 | 34 | - | 0 |
| 07-05-2021 | 1200Z | 208 | 12 | 35 | - | 0 | 73 | 35 | - | 0 |
| 07-05-2021 | 0600Z | 221 | 13 | 35 | - | 0 | 75 | 35 | - | 0 |
| 07-05-2021 | 0000Z | 153 | 7 | 35 | - | 0 | 81 | 35 | - | 0 |
| 07-04-2021 | 1800Z | 143 | 8 | 35 | - | 0 | 74 | 35 | - | 0 |
| 07-04-2021 | 1200Z | 278 | 3 | 35 | - | 0 | 69 | 35 | - | 0 |
| 07-04-2021 | 0600Z | 294 | 4 | 35 | - | 0 | 69 | 35 | - | 0 |
| 07-04-2021 | 0000Z | 93 | 8 | 35 | - | 0 | 73 | 35 | - | 0 |
| 07-03-2021 | 1800Z | 173 | 6 | 34 | - | 0 | 70 | 34 | - | 0 |
| 07-03-2021 | 1200Z | 238 | 12 | 35 | - | 0 | 64 | 35 | - | 0 |
| 07-03-2021 | 0600Z | 289 | 10 | 35 | - | 0 | 64 | 35 | - | 0 |
| 07-03-2021 | 0000Z | 34 | 10 | 35 | - | 0 | 66 | 35 | - | 0 |
| 07-02-2021 | 1800Z | 38 | 13 | 35 | - | 0 | 64 | 35 | - | 0 |
| 07-02-2021 | 1200Z | 326 | 15 | 35 | - | 0 | 60 | 35 | - | 0 |
| 07-02-2021 | 0600Z | 323 | 13 | 35 | - | 0 | 61 | 35 | - | 0 |
| 07-02-2021 | 0000Z | 22 | 19 | 35 | - | 0 | 63 | 35 | - | 0 |
| 07-01-2021 | 1800Z | 32 | 16 | 34 | - | 0 | 63 | 34 | - | 0 |
| 07-01-2021 | 1200Z | 331 | 13 | 35 | - | 0 | 64 | 35 | - | 0 |
| 07-01-2021 | 0600Z | 5 | 6 | 35 | - | 0 | 68 | 35 | - | 0 |
| 07-01-2021 | 0000Z | 67 | 4 | 30 | - | 0 | 74 | 30 | - | 0 |
| 06-30-2021 | 1800Z | 161 | 5 | 35 | - | 0 | 72 | 35 | - | 0 |
| 06-30-2021 | 1200Z | 242 | 8 | 35 | - | 0 | 68 | 35 | - | 0 |
| 06-30-2021 | 0600Z | 242 | 13 | 35 | - | 0 | 73 | 35 | - | 0 |
| 06-30-2021 | 0000Z | 177 | 2 | 35 | - | 0 | 74 | 35 | - | 0 |
| 06-29-2021 | 1800Z | 199 | 4 | 34 | - | 0 | 76 | 34 | - | 0 |
| 06-29-2021 | 1200Z | 184 | 3 | 35 | - | 0 | 71 | 35 | - | 0 |
| 06-29-2021 | 0600Z | 135 | 7 | 35 | - | 0 | 72 | 35 | - | 0 |
| 06-29-2021 | 0000Z | 94 | 6 | 35 | - | 0 | 72 | 35 | - | 0 |
| 06-28-2021 | 1800Z | 170 | 1 | 35 | - | 0 | 69 | 35 | - | 0 |
| 06-28-2021 | 1200Z | 249 | 7 | 35 | - | 0 | 66 | 35 | - | 0 |
| 06-28-2021 | 0600Z | 238 | 14 | 35 | - | 0 | 69 | 35 | - | 0 |
| 06-28-2021 | 0000Z | 226 | 15 | 35 | - | 0 | 76 | 35 | - | 0 |
| 06-27-2021 | 1800Z | 195 | 6 | 34 | - | 0 | 73 | 34 | - | 0 |
| 06-27-2021 | 1200Z | 162 | 6 | 35 | - | 0 | 71 | 35 | - | 0 |
| 06-27-2021 | 0600Z | 169 | 6 | 35 | - | 0 | 71 | 35 | - | 0 |
| 06-27-2021 | 0000Z | 154 | 11 | 35 | - | 0 | 72 | 35 | - | 0 |
| 06-26-2021 | 1800Z | 169 | 5 | 35 | - | 0 | 70 | 35 | - | 0 |
| 06-26-2021 | 1200Z | 165 | 7 | 35 | - | 0 | 68 | 35 | - | 0 |
| 06-26-2021 | 0600Z | 253 | 9 | 35 | - | 0 | 68 | 35 | - | 0 |
| 06-26-2021 | 0000Z | 138 | 12 | 35 | - | 0 | 70 | 35 | - | 0 |
| 06-25-2021 | 1800Z | 159 | 14 | 34 | - | 0 | 69 | 34 | - | 0 |
| 06-25-2021 | 1200Z | 157 | 9 | 35 | - | 0 | 69 | 35 | - | 0 |
| 06-25-2021 | 0600Z | 135 | 5 | 35 | - | 0 | 69 | 35 | - | 0 |
| 06-25-2021 | 0000Z | 200 | 9 | 35 | - | 0 | 68 | 35 | - | 0 |
| 06-24-2021 | 1800Z | 155 | 11 | 35 | - | 0 | 69 | 35 | - | 0 |
| 06-24-2021 | 1200Z | 148 | 12 | 35 | - | 0 | 68 | 35 | - | 0 |
| 06-24-2021 | 0600Z | 148 | 10 | 35 | - | 0 | 68 | 35 | - | 0 |
| 06-24-2021 | 0000Z | 153 | 9 | 35 | - | 0 | 68 | 35 | - | 0 |
| 06-23-2021 | 1800Z | 149 | 6 | 34 | - | 0 | 68 | 34 | - | 0 |
| 06-23-2021 | 1200Z | 194 | 4 | 35 | - | 0 | 61 | 35 | - | 0 |
| 06-23-2021 | 0600Z | 237 | 12 | 35 | - | 0 | 60 | 35 | - | 0 |
| 06-23-2021 | 0000Z | 233 | 8 | 35 | - | 0 | 58 | 35 | - | 0 |
| 06-22-2021 | 1800Z | 215 | 8 | 35 | - | 0 | 57 | 35 | - | 0 |
| 06-22-2021 | 1200Z | 270 | 10 | 35 | - | 0 | 51 | 35 | - | 0 |
| 06-22-2021 | 0600Z | 285 | 12 | 35 | - | 0 | 50 | 35 | - | 0 |
| 06-22-2021 | 0000Z | 282 | 21 | 35 | - | 0 | 54 | 35 | - | 0 |
| 06-21-2021 | 1800Z | 274 | 25 | 36 | - | 0 | 64 | 36 | - | 0 |
| 06-21-2021 | 1200Z | 211 | 19 | 36 | - | 0 | 68 | 36 | - | 0 |
| 06-21-2021 | 0600Z | 141 | 14 | 36 | - | 0 | 69 | 36 | - | 0 |
| 06-21-2021 | 0000Z | 116 | 11 | 36 | - | 0 | 73 | 36 | - | 0 |
| 06-20-2021 | 1800Z | 87 | 5 | 36 | - | 0 | 68 | 36 | - | 0 |
| 06-20-2021 | 1200Z | 72 | 8 | 36 | - | 0 | 64 | 36 | - | 0 |
| 06-20-2021 | 0600Z | 54 | 11 | 36 | - | 0 | 64 | 36 | - | 0 |
| 06-20-2021 | 0000Z | 48 | 12 | 36 | - | 0 | 64 | 36 | - | 0 |
| 06-19-2021 | 1800Z | 143 | 3 | 36 | - | 0 | 67 | 36 | - | 0 |
| 06-19-2021 | 1200Z | 353 | 4 | 36 | - | 0 | 64 | 36 | - | 0 |
| 06-19-2021 | 0600Z | 162 | 4 | 36 | - | 0 | 69 | 36 | - | 0 |
| 06-19-2021 | 0000Z | 245 | 6 | 36 | - | 0 | 77 | 36 | - | 0 |
| 06-18-2021 | 1800Z | 186 | 6 | 36 | - | 0 | 71 | 36 | - | 0 |
| 06-18-2021 | 1200Z | 196 | 7 | 36 | - | 0 | 70 | 36 | - | 0 |
| 06-18-2021 | 0600Z | 179 | 8 | 36 | - | 0 | 73 | 36 | - | 0 |
| 06-18-2021 | 0000Z | 166 | 8 | 36 | - | 0 | 75 | 36 | - | 0 |
| 06-17-2021 | 1800Z | 156 | 7 | 36 | - | 0 | 67 | 36 | - | 0 |
| 06-17-2021 | 1200Z | 181 | 2 | 36 | - | 0 | 63 | 36 | - | 0 |
| 06-17-2021 | 0600Z | 144 | 8 | 36 | - | 0 | 63 | 36 | - | 0 |
| 06-17-2021 | 0000Z | 68 | 12 | 36 | - | 0 | 63 | 36 | - | 0 |
| 06-16-2021 | 1800Z | 84 | 7 | 36 | - | 0 | 61 | 36 | - | 0 |
| 06-16-2021 | 1200Z | 21 | 9 | 36 | - | 0 | 60 | 36 | - | 0 |
| 06-16-2021 | 0600Z | 329 | 13 | 36 | - | 0 | 61 | 36 | - | 0 |
| 06-16-2021 | 0000Z | 35 | 12 | 36 | - | 0 | 64 | 36 | - | 0 |
| 06-15-2021 | 1800Z | 41 | 17 | 36 | - | 0 | 61 | 36 | - | 0 |
| 06-15-2021 | 1200Z | 338 | 13 | 36 | - | 0 | 60 | 36 | - | 0 |
| 06-15-2021 | 0600Z | 311 | 13 | 36 | - | 0 | 63 | 36 | - | 0 |
| 06-15-2021 | 0000Z | 259 | 1 | 36 | - | 0 | 66 | 36 | - | 0 |
| 06-14-2021 | 1800Z | 49 | 6 | 36 | - | 0 | 65 | 36 | - | 0 |
| 06-14-2021 | 1200Z | 267 | 12 | 36 | - | 0 | 61 | 36 | - | 0 |
| 06-14-2021 | 0600Z | 309 | 14 | 36 | - | 0 | 66 | 36 | - | 0 |
| 06-14-2021 | 0000Z | 68 | 2 | 36 | - | 0 | 73 | 36 | - | 0 |
| 06-13-2021 | 1800Z | 144 | 5 | 36 | - | 0 | 70 | 36 | - | 0 |
| 06-13-2021 | 1200Z | 345 | 6 | 36 | - | 0 | 65 | 36 | - | 0 |
| 06-13-2021 | 0600Z | 333 | 6 | 36 | - | 0 | 63 | 36 | - | 0 |
| 06-13-2021 | 0000Z | 42 | 9 | 36 | - | 0 | 65 | 36 | - | 0 |
| 06-12-2021 | 1800Z | 42 | 8 | 36 | - | 0 | 62 | 36 | - | 0 |
| 06-12-2021 | 1200Z | 10 | 10 | 36 | - | 0 | 59 | 36 | - | 0 |
| 06-12-2021 | 0600Z | 13 | 13 | 36 | - | 0 | 60 | 36 | - | 0 |
| 06-12-2021 | 0000Z | 18 | 16 | 18 | - | 0 | 60 | 18 | - | 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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