Cyclone evacuation operation card: Tropical cyclone pre-warning threshold.
Formula
$$ \text{Op} = \text{Cyclone evacuation} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $Cyclone evacuation$ | Tropical cyclone pre-warning threshold | - | IMCA / IOGP |
Sources
- IMCA / IOGP Industry Guidelines.