// Station · 21m ago

KBFI

King County International Airport - Boeing Field

CAT VFR

WIND CALM

VIS 10+ SM

CEILING Few/scattered only

T/Td 16.7°C / 9.4°C

ALTIM 30.01 inHg

ELEV 21 FT

47.5270°N / 122.2999°W

LOCATION · Seattle, US

WIND

000°0 kt

KBFI · 21 FT

// Current + 24h forecast · METAR loaded · TAF loading…

METRIC

NOW · 15Z

+6H

+12H

+18H

WIND

CALM

VIS

10+ SM

CEILING

—

LAYERS

FEW028 SCT085

T / Td

17 / 9

ALTIM

30.01"

// Interpretation

VFR with winds calm. Visibility better than 10 statute miles and a few at 2,800 ft, and scattered at 8,500 ft. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR KBFI 111553Z COR 00000KT 10SM FEW028 SCT085 17/09 A3001 RMK AO2 SLP162 T01670094

KBFI · day 11 at 15:53 UTC · winds calm · visibility 10+ SM · a few clouds at 2,800 ft · scattered layer at 8,500 ft · temp 17°C / dewpoint 9°C · altimeter 30.01" Hg · automated station w/ precipitation discriminator · sea-level pressure 1016.2 mb

// Runway analysis · computed from current METAR wind

Wind CALM

ALL USABLE · WINDS CALM

WIND

000°calm

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

14R HDG 140° —CALM —— 10,007'

32L HDG 320° —CALM —— 10,007'

14L HDG 140° —CALM —— 3,709'

32R HDG 320° —CALM —— 3,709'

Pattern altitude: 1,021 ft MSL (1,000 ft AGL). Verify pattern direction and altitude with the chart supplement before flying. // On calm winds (<3 kt), all runways are usable — favor the longest or whatever the pattern calls for.

// Density altitude · ISA +2°C

100FT

+79 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↘ -400 FT

24h AGO18h12h6hNOW

FIELD ELEV21 FT OAT+17°C ISA DELTA+2°C PRESSURE ALT-70 FT

// Performance equivalent Operating here right now feels like operating at WA09 (Roche Harbor Airport, Roche Harbor, elev 100 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+1%

-1%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+1%

-0%

Light jetCJ4, Phenom 300, M2

+0%

-0%

Approximate using ~10% perf loss / 1,000 ft DA for normally aspirated, scaled by powerplant type. Verify with your aircraft's POH for accurate numbers — especially above 5,000 ft DA where these rules of thumb diverge.

// Cloud layers · 2 reported · highest to lowest

// Reported layers (highest → lowest)

SCT085

Scattered · base 8,500 ft AGL · ~3–4 oktas

FEW028

Few · base 2,800 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER8,500 ft TOTAL COVERAGE~48% (mixed) FREEZING LEVEL8,455 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-8)

12:24ZSUNRISE

20:15ZSOLAR NOON

04:06ZSUNSET

04:46ZCIVIL END

CURRENT16:14Z DAYLIGHT REMAINING11h 52m VFR NIGHT BEGINS04:46Z (12h 32m) DAY LENGTH15h 42m

Waning Crescent

ILLUMINATION11% MOONRISE09:52Z MOONSET01:35Z FULL MOON IN18 days

// Nearest reporting stations · 5 shown · 60 NM radius

K0S9

MVFR

Jefferson County International Airport · Port Townsend

WIND: CALM
VIS: 10+ SM
CEILING: OVC025
DIST: 38 NM NW
AGE: 19m ago

KAWO

MVFR

Arlington Municipal Airport · Arlington

WIND: 320° / 4 kt
VIS: 10+ SM
CEILING: OVC029
DIST: 39 NM N
AGE: 7m ago

KSHN

VFR

Sanderson Field · Shelton

WIND: 230° / 7 kt
VIS: 10+ SM
CEILING: OVC080
DIST: 39 NM SW
AGE: 21m ago

KOLM

VFR

Olympia Regional Airport · Olympia

WIND: VRB / 3 kt
VIS: 10+ SM
CEILING: BKN060
DIST: 42 NM SW
AGE: 20m ago

KNRA

MVFR

Coupeville Nolf Airport · Coupeville

WIND: 240° / 5 kt
VIS: 10+ SM
CEILING: OVC029
DIST: 42 NM N
AGE: 39m ago

// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay

AIRSPACE

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