Airports › Washington › KSEA
KSEA — Seattle-Tacoma Intl
Seattle, WA · field elevation 432 ft · Class B airspace · ATCT
3 AIRMETs & SIGMETs Read in the EFB →
KSEA current weather Live
MVFR ceiling 1,000–3,000 ft or visibility 3–5 statute miles
SPECI KSEA 100602Z 20010KT 10SM FEW008 BKN014 11/11 A2999 RMK AO2 T01110106
- Wind
- from 200° at 10 kt
- Visibility
- 10 statute miles
- Sky
- ceiling 1,400 ft AGL
- Temperature
- 11 °C / dewpoint 11 °C
- Altimeter
- 29.99 inHg
- Density altitude
- -16 ft · pressure altitude 362 ft
- Observed
- 24 minutes ago
Learn: reading a METAR, the weather course
Wind on each runway
Wind 200° at 10 kt. Positive is a headwind.
| Runway | Head / tail | Crosswind |
|---|---|---|
| 16C | 9 kt head | 3 kt from the right |
| 16L | 9 kt head | 3 kt from the right |
| 16R | 9 kt head | 3 kt from the right |
| 34C | 9 kt tail | 3 kt from the left |
| 34R | 9 kt tail | 3 kt from the left |
| 34L | 9 kt tail | 3 kt from the left |
Calculator: crosswind components
48-hour trend
Eight days of observations, each readable in full — in the EFB →
Calculators: density altitude, pressure altitude, cloud base, crosswind
Weather cameras
8 within 20 nm, closest 8 nm. Last image 10 min ago.
View them, and the last six hours — in the EFB →
Pilot reports
1 within 50 nm in the last six hours, 2,000–2,000 ft.
Read them where they were filed — in the EFB →
Forecast
MOS guidance beside this TAF, both drawn along your route — in the EFB →
TAF KSEA 100538Z 1006/1112 19006KT P6SM VCSH BKN012 BKN030 FM101200 15005KT P6SM BKN050 OVC100 FM101500 20008KT 6SM -SHRA OVC035 FM101700 20010G20KT 5SM -SHRA OVC015 FM110200 19008KT P6SM VCSH OVC035
Learn: reading a TAF, the weather course
Airport information
- Coordinates
- 47.44989, -122.31178
- Elevation
- 432 ft MSL
- Surface airspace
-
Class B
An ATC clearance is required before you enter.
The words matter: being told “stand by” is not a clearance, and neither is being given a squawk. You need “cleared into the Class Bravo”. Mode C is required within 30 nm of the primary airport — the veil — whether or not you enter the Bravo itself, and the VFR weather minimum is 3 statute miles and clear of clouds, because ATC is separating everyone inside.
- Sunrise / sunset
- 1507Z / 0039Z
- Tower hours
- Continuous (24 hours)
- Magnetic variation
- 16°E (2020)
- Fuel
- A,A1
- Sectional
- Seattle
- County
- King, WA
Airport diagram
Everything else KSEA publishes — in the EFB →
Runways
| Runway | Length (ft) | Width (ft) | Surface | Lights |
|---|---|---|---|---|
| 16L/34R | 11,901 | 150 | CONC | HIGH |
| 16C/34C | 9,426 | 150 | CONC | HIGH |
| 16R/34L | 8,500 | 150 | CONC | HIGH |
Frequencies
- D-ATIS
- 118.0
- Tower RWY 16L/34R, 16C/34C · Continuous (24 hours)
- 119.9
- Tower RWY 16R/34L · Continuous (24 hours)
- 120.95
- Ground
- 121.7
- Clearance
- 128.0
- UNICOM
- 122.95
- Approach 017-079 SEA RWY 34
- 119.2
- Approach 223-289 SEA, RWY 16
- 120.1
- Approach 301-340 SEA, RWY 34
- 120.4
- Approach
- 123.9
- Approach ARR WEST
- 125.6
- Approach 080-125 SEA, RWY 34
- 125.9
- Approach 126-222 SEA, RWY 34
- 126.5
- Approach 302-016 SEA, RWY 34
- 128.5
Published procedures
- 24 approaches — ILS, LOC, RNAV (GPS), RNAV (RNP)
- 9 departures published
- 7 arrivals published
Read the approach plates georeferenced — in the EFB →
Nearby airports
- KRNT Renton Muni5 nm
- KBFI Boeing Fld/King County Intl5 nm
- KTIW Tacoma Narrows15 nm
- KPWT Bremerton Ntl19 nm
- KTCM Mcchord Fld (Joint Base Lewis-Mcchord)20 nm
- KPLU Pierce County/Thun Fld21 nm
Elsewhere
- Make a poster of the KSEA airport diagram or an approach plate
- Other Washington airports
- How to read a METAR
- What VFR, MVFR, IFR and LIFR actually mean
- Live records — the strongest winds and lowest ceilings in the country right now
Weather from METAR and TAF, National Weather Service Aviation Weather Center. Airport, runway, frequency and procedure data from the FAA NASR 28-day cycle; charts from the FAA d-TPP. Advisory only — this is not a weather briefing.