Small General Aviation Airport • Unknown, WA, Australia
Elevation: 7 ft (2 m) • -21.6702, 115.1149
Onslow Airport (YOLW / ONS) is a small general aviation airport serving Unknown, WA, Australia, situated at an elevation of 7 ft (2 m) above sea level. Local magnetic variation is 0.5° East. The airport has 4 runways, with the longest measuring 5,249 feet.
| Designator | Length | Width | Surface | Heading |
|---|---|---|---|---|
| 03 | 5,249 ft | — | Sealed, grooved. | — |
| 12 | 3,257 ft | — | X | — |
| 21 | 5,249 ft | — | Sealed, grooved. | — |
| 30 | 3,257 ft | — | X | — |
METAR (Meteorological Aerodrome Report) is the standard format for reporting current weather conditions at airports worldwide. Issued every 30–60 minutes, it includes wind direction and speed, visibility, sky condition and cloud heights, temperature, dewpoint, and altimeter setting. Special METARs (SPECI) are issued when conditions change significantly.
TAF (Terminal Aerodrome Forecast) provides a weather forecast for the area within 5 nautical miles of an airport, valid for 24–30 hours. Issued every 6 hours by national weather services, TAFs use FM (from), TEMPO (temporary), BECMG (becoming), and PROB (probability) groups to describe changing conditions.
Flight Categories: VFR ceiling >3,000 ft & vis >5 SM MVFR 1,000–3,000 ft or 3–5 SM IFR 500–1,000 ft or 1–3 SM LIFR <500 ft or <1 SM