Converter
length with observational definition
prevailing visibility
approx.
- Record
- M652
- Definition quality
- Approximate
- Conversion mode
- contextual
- Calculator
- Context required
Definition
Prevailing visibility is a distance with a specific horizon-based observational definition; U.S. METAR reports statute miles.
Modern use
Modern use is context-dependent and varies by region or measurement system.
Sources & evidence
Source tier — · confidence high