DIVING GLOSSARY · Planning and conditions

Forecast

A prediction of conditions for a stated area and time.

Explore the idea in context

Definitions are a starting point. These lessons connect the word to examples, illustrations and further reading.

Underwater science

Models, measurements and limits

Distinguish a model from a direct measurement.

Read lesson →

Planning your dive

Forecasts and observations

Tell predicted conditions from recorded conditions.

Read lesson →

Introductory definition · Instructor review pending.