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Secrets of the St. Lawrence
Extra - Handy references
On board
| √ | Safe Boating Guide |
| √ | Nautical Charts |
| √ | Sailing Directions |
| √ | Tide and current tables |
| √ | Marine Weather Guide The Secrets of the St Lawrence |
| √ | Weather forecasts |
Winds
| knots | mi/h | km/h | Beaufort | |
|---|---|---|---|---|
| Light | 0 to 12 | 0 to 14 | 0 to 22 | 0 to 3 |
| Breeze | 13 to 19 | 15 to 22 | 24 to 35 | 4 to 5 |
| Strong | 20 to 33 | 23 to 38 | 37 to 61 | 6 to 7 |
| Gale | 34 to 47 | 39 to 54 | 63 to 87 | 8 to 9 |
| Storm | 48 to 63 | 55 to 73 | 89 to 117 | 10 to 11 |
| Hurricane | 64 and + | 74 and + | 118 and + | 12 |
Barometric pressure
| millibars or hectopascals | kilopascals | inches of mercury |
|---|---|---|
| 1000 | 100 | 29.5 |
Douglas seastate scale
| Code | Type of sea | Significant wave height (m) |
|---|---|---|
| 0 | Calm (glassy) | 0 |
| 1 | Calm (rippled) | 0 to 0.1 |
| 2 | Smooth (wavelets) | 0.1 to 0.5 |
| 3 | Slight | 0.5 to 1.25 |
| 4 | Moderate | 1.25 to 2.5 |
| 5 | Rough | 2.5 to 4.0 |
| 6 | Very rough | 4,0 to 6,0 |
| 7 | High | 6,0 to 9,0 |
| 8 | Very high | 9,0 to 14,0 |
| 9 | Phenomenal | More than 14,0 |
Not to be confused with the Beaufort Scale
- 1. Fore to aft
- 2. What Cartier missed out on
- 3. Conversion
- 4. The Secrets of the St Lawrence
- 5. The wind in your sails - Hard a-port!
- 6. The wind in your sails - Fast or slow?
- 7. The wind in your sails - The wind's paths
- 8. The wind in your sails - Against the wall
- 9. The wind in your sails - Solar energy
- 10. The wind in your sails - Under the stars
- 11. The wind and the waves - The windway
- 12. The wind and the waves - Wave wars
- 13. The wind and the waves - Graveyards
- 14. The wind and the waves - Conflicting seas
- 15. Symbols
- 16. The St Lawrence, from 1 to... - Legend
- 17. The St Lawrence, from 1 to... - Calling all sailors
- 18. The St Lawrence, from 1 to... Hot spots
- 19. Local listings - Québec - Pointe-des-Monts
- 20. Local listings - Pointe-des-Monts - Cap Whittle
- 21. Local listings - Cap Whittle - Blanc-Sablon
- 22. Local listings - Gaspésie - Baie des Chaleurs
- 23. Local listings - Îles de la Madeleine
- 24. Sailors take warning - White-outs
- 25. Sailors take warning - The sky above us
- 26. Sailors take warning - Keeping a weather eye
- 27. Sailors take warning - Fair weather and foul
- 28. Sailors take warning - The unexpected
- 29. The four seasons - Wind aplenty
- 30. The four seasons - Vessel icing
- 31. The four seasons - Ice cycle
- 32. Extra - Beaufort
- 33. Extra - Handy references
- 34. Extra - Old Salts and Sea-dogs
- 35. Extra - The crew
- 36. Extra - A to Z
- 37. Extra - Stations
- 38. Extra - Areas
- 39. Credits
- Date modified: