// Station · 1h 5m ago · STALE

RKJB

Muan International Airport

CAT MVFR

WIND 330° / 8 kt

VIS 6+ SM

CEILING BKN at 2,500 ft

T/Td 21°C / 20°C

ALTIM 29.94 inHg

ELEV 35 FT

34.9914°N / 126.3828°E

LOCATION · Muan (Piseo-ri), KR

WIND

330°8 kt

RKJB · 35 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

330°/8

VIS

6+ SM

CEILING

BKN025

LAYERS

SCT009 BKN025 OVC060

T / Td

21 / 20

ALTIM

29.94"

// Interpretation

MVFR — ceiling 2,500 ft. Moderate winds at 330°/8 kt, visibility 6+ SM, scattered at 900 ft, broken at 2,500 ft, and overcast at 6,000 ft. Would drop to IFR below 1,000 ft ceiling or 3 SM visibility, or rise back to VFR above 3,000 ft and 5 SM.

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

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// Raw observation METAR string + decoded

METAR RKJB 130000Z 33008KT 9999 SCT009 BKN025 OVC060 21/20 Q1014 NOSIG

RKJB · day 13 at 00:00 UTC · wind from 330° at 8 kt · visibility 6+ SM · scattered layer at 900 ft · broken layer at 2,500 ft · overcast at 6,000 ft · temp 21°C / dewpoint 20°C · altimeter 29.94" Hg

// Runway analysis · computed from current METAR wind

Wind 330° @ 8 kt

1 USABLE · 1 AVOID

WIND

330°8 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

01★ HDG 010° H6 kt X5 kt LEFT PRIMARY · 9,186'

TAILWIND ENDS · AVOID 1 ends

19 HDG 190° T6 kt X5 kt RIGHT —

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

700FT

+665 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV35 FT OAT+21°C ISA DELTA+6°C PRESSURE ALT12 FT

// Performance equivalent Operating here right now feels like operating at RKSV (Pyoripsan Heliport, Pyoripsan, elev 820 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+7%

-5%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+5%

-3%

Light jetCJ4, Phenom 300, M2

+3%

-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 · 3 reported · highest to lowest

// Reported layers (highest → lowest)

OVC060

Overcast · base 6,000 ft AGL · 8 oktas

BKN025

Broken · base 2,500 ft AGL · ~5–7 oktas

SCT009

Scattered · base 900 ft AGL · ~3–4 oktas

// Computed

CEILING2,500 ft AGL HIGHEST LAYER6,000 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL10,641 ft VFR MARGIN-500 ft

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

21:39ZSUNRISE

03:21ZSOLAR NOON

09:04ZSUNSET

09:30ZCIVIL END

CURRENT01:05Z DAYLIGHT REMAINING7h 59m VFR NIGHT BEGINS09:30Z (8h 24m) DAY LENGTH11h 25m

Waxing Crescent

ILLUMINATION3% MOONRISE23:00Z MOONSET10:25Z FULL MOON IN13 days

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

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