Abbreviations and codes used in the observer's diary
Table 1: Code for wind direction
| Code | Compass Point (from which wind is blowing) |
| 36 | North |
| 02 | North-north-east |
| 05 | North-east |
| 07 | East-north-east |
| 09 | East |
| 11 | East-south-east |
| 14 | South-east |
| 16 | South-south-east |
| 18 | South |
| 20 | South-south-west |
| 23 | South-west |
| 25 | West-south-west |
| 27 | West |
| 29 | West-north-west |
| 32 | North-west |
| 34 | North-north-west |
| All directions are from true (not magnetic) North | |
