- Air temperature too low (avg 1.0 °C)
- Air temperature too low (avg -1.0 °C)
- Air temperature too low (avg -1.4 °C)
- Air temperature too low (avg 1.4 °C)
- Air temperature too low (avg 4.5 °C)
- Moderate wind – experience required (avg 6.0 m/s)
- Air temperature too low (avg 2.4 °C)