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BML Revision: Meteorology (Section 2)
Revision card 2 of 12 — Boatmaster's Licence, Tier 1 Level 1 Underpinning Knowledge, MSN 1853 Annex 9.
What You Need to Know
- The weather services available to shipping — know what's out there before you need it, not during a passage
- Meteorological terms in enough depth to actually interpret conditions, not just recite definitions
- Types of cloud, cloud cover and precipitation
- Visibility, including horizontal visibility — define it precisely
- How to make non-instrumental observations (reading the sky and sea state without instruments)
- How to recognise and respond to an extreme weather forecast or rapidly emerging conditions
Quick Self-Check
- Can you define horizontal visibility without checking a book?
- What non-instrumental signs indicate deteriorating weather?
- Where do you get an official weather service update before getting underway?
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