Large International Airport • Seattle, WA, United States
Elevation: 433 ft (132 m) • 47.4479, -122.3103
Seattle–Tacoma International Airport (KSEA / SEA) is a large international airport serving Seattle, WA, United States, situated at an elevation of 433 ft (132 m) above sea level. Local magnetic variation is 14.9° East. The airport has 6 runways, with the longest measuring 11,900 feet.
METAR KSEA 180553Z 02007KT 10SM BKN190 OVC250 09/02 A3015 RMK AO2 SLP216 T00940017 10128 20089 58007
TAF KSEA 180520Z 1806/1912 02006KT P6SM FEW050 BKN200 FM180900 03004KT P6SM BKN150 FM181800 29007KT P6SM BKN200 FM190200 01005KT P6SM SCT250 FM190600 04006KT P6SM FEW250
| Designator | Length | Width | Surface | Heading |
|---|---|---|---|---|
| 16C | 9,426 ft | 150 ft | CONC-F | 180° |
| 16L | 11,900 ft | 150 ft | Asphalt | 180° |
| 16R | 9,426 ft | 150 ft | Concrete | 180° |
| 34C | 9,426 ft | 150 ft | CONC-F | 360° |
| 34L | 9,426 ft | 150 ft | Concrete | 360° |
| 34R | 11,900 ft | 150 ft | Asphalt | 360° |
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