Large International Airport • Dulles, VA, United States
Elevation: 312 ft (95 m) • 38.9445, -77.4558
Washington Dulles International Airport (KIAD / IAD) is a large international airport serving Dulles, VA, United States, situated at an elevation of 312 ft (95 m) above sea level. Local magnetic variation is 10.5° West. The airport has 8 runways, with the longest measuring 11,501 feet.
METAR KIAD 210252Z 01006KT 10SM CLR 07/M08 A3034 RMK AO2 SLP275 T00721083 50020 $
TAF KIAD 210306Z 2103/2206 01006KT P6SM SKC FM211100 24004KT P6SM SKC FM211800 19006KT P6SM FEW150 FEW250 FM220000 16008KT P6SM SCT250
| Designator | Length | Width | Surface | Heading |
|---|---|---|---|---|
| 01C | 11,501 ft | 150 ft | CONC-G | 1° |
| 01L | 9,400 ft | 150 ft | Concrete | 1° |
| 01R | 11,500 ft | 150 ft | Concrete | — |
| 12 | 10,501 ft | 150 ft | Concrete | 110° |
| 19C | 11,501 ft | 150 ft | CONC-G | 181° |
| 19L | 11,500 ft | 150 ft | Concrete | 180° |
| 19R | 9,400 ft | 150 ft | Concrete | 181° |
| 30 | 10,501 ft | 150 ft | Concrete | 290° |
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