Medium Regional Airport • La Grande-4, QC, Canada
Elevation: 1,005 ft (306 m) • 53.7547, -73.6753
La Grande-4 Airport (CYAH / YAH) is a medium regional airport serving La Grande-4, QC, Canada, situated at an elevation of 1,005 ft (306 m) above sea level. Local magnetic variation is 16.3° West. The airport has 2 runways, with the longest measuring 5,000 feet.
FLIGHT CATEGORY
WIND COMPASS
CLOUD PROFILE
METAR CYAH 220100Z AUTO 20002KT 9SM CLR 17/13 A2984 RMK SLP113 DENSITY ALT 1600FT
TAF CYAH 211740Z 2118/2121 VRB03KT P6SM BKN025 BKN050 TEMPO 2118/2121 5SM -SHRA BR BKN020 OVC050 PROB30 2118/2121 3SM TSRA BR BKN015 OVC040CB RMK FCST BASED ON AUTO OBS. NXT FCST BY 221100Z
| Designator | Length | Width | Surface | Heading |
|---|---|---|---|---|
| 09 | 5,000 ft | 150 ft | GRAVEL | — |
| 27 | 5,000 ft | 150 ft | GRAVEL | — |
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