| Code (Visual) | Code (Remote) | Descriptions |
|---|---|---|
| 11 | 12 | Ship |
| 21 | 22 | Lightship |
| 31 | 32 | Buoy |
| 41 | 42 | Fixed Tower |
| 51 | 52 | Submersible |
| 61 | 62 | Aircraft |
| 71 | 72 | Ice Island |
| 81 | 82 | Fixed Coastal Station |
| 91 | 92 | Other |
2. Tar Ball, Beach Tar, and Hydrocarbon Data
| Code | Descriptions |
|---|---|
| 1 | Ship |
| 2 | Lightship |
| 3 | Buoy |
| 4 | Fixed Tower |
| 5 | Submersible |
| 6 | Aircraft |
| 7 | Ice Island |
| 8 | Fixed Coastal Station |
| 9 | Other |
| Code | Descriptions |
|---|---|
| 0 | Sea surface observed but no pollutants to report |
| 1 | Sea surface not observed, owing to high sea, bad visibility, or for other reasons |
| 2 | Pollutants observed and recorded. |
Types of pollutants
| Code | Descriptions |
|---|---|
| 1 | Thin oil film (may include occasional minor patches or lumps of thick oil) |
| 2 | Thick oil layer (may be surrounded by oil film which should be included under this same code) |
| 3 | Plastic materials |
| 9 | Other (specify in remarks column) |
Configuration
| Code | Descriptions |
|---|---|
| 1 | Continuous cover |
| 2 | Patches |
| 3 | In a line or lines |
Concentration
The concentration should be reported in eighths as, for example the WMO code for ice coverage:
| Code | Descriptions |
|---|---|
| 1 | 1/8 (slightest presence of reported pollutants) |
| 2 | 2/8 |
| 3 | 3/8 |
| 4 | 4/8 (half of surface is covered) |
| 5 | 5/8 |
| 6 | 6/8 |
| 7 | 7/8 |
| 8 | 8/8 (continuous cover) |
| Code | Description |
|---|---|
| 00 | Calm |
| 01 | 5 - 14 degrees |
| 02 | 15 - 24 degrees |
| 03 | 25 - 34 degrees |
| 04 | 35 - 44 degrees |
| 05 | 45 - 54 degrees |
| 06 | 55 - 64 degrees |
| 07 | 65 - 74 degrees |
| 08 | 75 - 84 degrees |
| 09 | 85 - 94 degrees |
| 10 | 95 - 104 degrees |
| 11 | 105 - 114 degrees |
| 12 | 115 - 124 degrees |
| 13 | 125 - 134 degrees |
| 14 | 135 - 144 degrees |
| 15 | 145 - 154 degrees |
| 16 | 155 - 164 degrees |
| 17 | 165 - 174 degrees |
| 18 | 175 - 184 degrees |
| 19 | 185 - 194 degrees |
| 20 | 195 - 204 degrees |
| 21 | 205 - 214 degrees |
| 22 | 215 - 224 degrees |
| 23 | 225 - 234 degrees |
| 24 | 235 - 244 degrees |
| 25 | 245 - 254 degrees |
| 26 | 255 - 264 degrees |
| 27 | 265 - 274 degrees |
| 28 | 275 - 284 degrees |
| 29 | 285 - 294 degrees |
| 30 | 295 - 304 degrees |
| 31 | 305 - 314 degrees |
| 32 | 315 - 324 degrees |
| 33 | 325 - 334 degrees |
| 34 | 335 - 344 degrees |
| 35 | 345 - 354 degrees |
| 36 | 355 - 4 degrees |
| 99 | Waves confused |
| Code | Description | Knots | m/s |
|---|---|---|---|
| 0 | Calm | 0- 0.9 | 0 - 0.2 |
| 1 | Light air | 1- 3 | 0.3- 1.5 |
| 2 | Light breeze | 4- 6 | 1.6- 3.3 |
| 3 | Gentle breeze | 7- 10 | 3.4- 5.4 |
| 4 | Moderate breeze | 11- 16 | 5.5- 7.9 |
| 5 | Fresh breeze | 17- 21 | 8.0-10.7 |
| 6 | Strong breeze | 22- 27 | 10.8-13.8 |
| 7 | Near gale | 28- 33 | 13.9-17.1 |
| 8 | Gale | 34- 40 | 17.2-20.7 |
| 9 | Strong gale | 41- 47 | 20.8-24.4 |
| 10 | Storm | 48- 55 | 24.5-28.4 |
| 11 | Violent storm | 56- 63 | 28.5-32.6 |
| 12 | Hurricane | >64 | >32.7 |
| Code | Height |
|---|---|
| 00 | Calm |
| 01 | 0.5m |
| 02 | 1.0m |
| 03 | 1.5m |
| 04 | 2.0m |
| 05 - 99 | Increases at 0.5m intervals |
| // | Wave height not determined |