// Station · 16m ago

RJTT

Tokyo Haneda International Airport

CAT VFR

WIND 350° / 8 kt

VIS 6+ SM

CEILING BKN at 3,500 ft

T/Td 21°C / 15°C

ALTIM 30.03 inHg

ELEV 35 FT

35.5497°N / 139.7870°E

LOCATION · Tokyo, JP

WIND

350°8 kt

RJTT · 35 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

350°/8

VIS

6+ SM

CEILING

BKN035

LAYERS

FEW020 BKN035

T / Td

21 / 15

ALTIM

30.03"

// Interpretation

VFR — ceiling 3,500 ft. Moderate winds at 350°/8 kt, visibility 6+ SM, a few at 2,000 ft, and broken at 3,500 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 RJTT 130000Z 35008KT 9999 FEW020 BKN035 21/15 Q1017 NOSIG

RJTT · day 13 at 00:00 UTC · wind from 350° at 8 kt · visibility 6+ SM · a few clouds at 2,000 ft · broken layer at 3,500 ft · temp 21°C / dewpoint 15°C · altimeter 30.03" Hg

// Runway analysis · computed from current METAR wind

Wind 350° @ 8 kt

4 USABLE · 4 AVOID · 2 CAUTION

WIND

350°8 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 4 usable

34R★ HDG 340° H8 kt X1 kt RIGHT PRIMARY · 11,024'

34L HDG 340° H8 kt X1 kt RIGHT 9,843'

04 HDG 040° H5 kt X6 kt LEFT ⚠ HIGH XW · 75%

05 HDG 050° H4 kt X7 kt LEFT ⚠ HIGH XW · 88%

TAILWIND ENDS · AVOID 4 ends

23 HDG 230° T4 kt X7 kt RIGHT —

22 HDG 220° T5 kt X6 kt RIGHT —

16L HDG 160° T8 kt X1 kt LEFT —

16R HDG 160° T8 kt X1 kt LEFT —

Pattern altitude: 1,035 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 +6°C

600FT

+565 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV35 FT OAT+21°C ISA DELTA+6°C PRESSURE ALT-77 FT

// Performance equivalent Operating here right now feels like operating at RJTY (Yokota Air Base, Fussa, elev 463 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+6%

-4%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+4%

-3%

Light jetCJ4, Phenom 300, M2

+2%

-2%

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. Severity rating assumes a standard altimeter setting (29.92" Hg / 1013 hPa); a non-standard setting shifts the effective altitude by roughly 1,000 ft per 1" Hg of deviation.

// Cloud layers · 2 reported · highest to lowest

// Reported layers (highest → lowest)

BKN035

Broken · base 3,500 ft AGL · ~5–7 oktas

FEW020

Few · base 2,000 ft AGL · ~1–2 oktas

// Computed

CEILING3,500 ft AGL HIGHEST LAYER3,500 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL10,641 ft VFR MARGIN+500 ft

// Sun & Moon · times in Z · bar = local day (UTC+9)

20:46ZSUNRISE

02:28ZSOLAR NOON

08:10ZSUNSET

08:36ZCIVIL END

CURRENT00:16Z DAYLIGHT REMAINING7h 54m VFR NIGHT BEGINS08:36Z (8h 19m) DAY LENGTH11h 24m

Waxing Crescent

ILLUMINATION3% MOONRISE22:05Z MOONSET09:30Z FULL MOON IN13 days

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

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