// Station · 1h 7m ago · STALE

RKSM

Seoul Air Base (K-16)

CAT IFR

WIND 350° / 2 kt

VIS 2.5 SM

CEILING BKN at 1,500 ft

T/Td 16°C / 15°C

ALTIM 29.97 inHg

WX -RA BR

ELEV 92 FT

37.4447°N / 127.1127°E

LOCATION · Seongnam, KR

WIND

350°2 kt

RKSM · 92 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

350°/2

VIS

2.5 SM

CEILING

BKN015

LAYERS

FEW005 BKN015 OVC040

T / Td

16 / 15

ALTIM

29.97"

// Interpretation

IFR conditions — visibility 2.5 SM. Light winds at 350°/2 kt, visibility 2.5 SM, a few at 500 ft, broken at 1,500 ft, and overcast at 4,000 ft. Reported weather: light rain and mist (-RA BR). Mist is water droplets thinning visibility to between 5/8 and 6 SM — the moist, lighter cousin of fog. Would deteriorate to LIFR below 500 ft ceiling or 1 SM, or improve to MVFR above 1,000 ft and 3 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR RKSM 130000Z 35002KT 4000 -RA BR FEW005 BKN015 OVC040 16/15 A2997

RKSM · day 13 at 00:00 UTC · wind from 350° at 2 kt · visibility 2.5 SM · a few clouds at 500 ft · broken layer at 1,500 ft · overcast at 4,000 ft · temp 16°C / dewpoint 15°C · altimeter 29.97" Hg · weather: light rain and mist (-RA BR)

// Runway analysis · computed from current METAR wind

Wind 350° @ 2 kt

ALL USABLE · WINDS CALM

WIND

350°2 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

02 HDG 020° —CALM —— 9,700'

20 HDG 200° —CALM —— 9,700'

01 HDG 010° —CALM —— 9,000'

19 HDG 190° —CALM —— 9,000'

Pattern altitude: 1,092 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 +1°C

200FT

+108 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV92 FT OAT+16°C ISA DELTA+1°C PRESSURE ALT39 FT

// Performance equivalent Operating here right now feels like operating at RKSH (Central 119 Rescue Heliport, Byeollae-dong, elev 193 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+2%

-1%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+1%

-1%

Light jetCJ4, Phenom 300, M2

+1%

-1%

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)

OVC040

Overcast · base 4,000 ft AGL · 8 oktas

BKN015

Broken · base 1,500 ft AGL · ~5–7 oktas

FEW005

Few · base 500 ft AGL · ~1–2 oktas

// Computed

CEILING1,500 ft AGL HIGHEST LAYER4,000 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL8,173 ft VFR MARGIN-1,500 ft

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

21:38ZSUNRISE

03:19ZSOLAR NOON

08:59ZSUNSET

09:26ZCIVIL END

CURRENT01:07Z DAYLIGHT REMAINING7h 52m VFR NIGHT BEGINS09:26Z (8h 18m) DAY LENGTH11h 21m

Waxing Crescent

ILLUMINATION3% MOONRISE22:59Z MOONSET10:20Z FULL MOON IN13 days

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

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