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// RKJK · Gunsan Airport / Gunsan Air Base · Gunsan

// STALE Observation is 1h 24m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 1h 24m ago · STALE

RKJK

Gunsan Airport / Gunsan Air Base
CAT VFR
WIND 350° / 4 kt
VIS 10+ SM
CEILING CLR
T/Td 26.3°C / 24.7°C
ALTIM 29.83 inHg
ELEV 29 FT
35.9038°N / 126.6160°E
LOCATION · Gunsan, KR
N
WIND
350°4 kt
RKJK · 29 FT
© OSM · CartoDB

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

METRIC
NOW · 14Z
+6H
+12H
+18H
WIND
350°/4
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
—
 
 
 
T / Td
26 / 25
 
 
 
ALTIM
29.83"
 
 
 

Loading TAF forecast…

// Interpretation

VFR with light winds at 350°/4 kt. Visibility better than 10 statute miles and no reported cloud layers. 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 RKJK 251455Z COR 35004KT 10SM CLR 26/25 A2983 RMK AO2A SLP105 T02630247 403230250 55004 $ COR 1456

RKJK · day 25 at 14:55 UTC · wind from 350° at 4 kt · visibility 10+ SM · temp 26°C / dewpoint 25°C · altimeter 29.83" Hg · sea-level pressure 1010.5 mb

// Runway analysis · computed from current METAR wind

Wind 350° @ 4 kt
ALL USABLE · WINDS CALM
N
WIND
350°4 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 2 ends
18 HDG 180° —CALM —— 9,000'
36 HDG 360° —CALM —— 9,000'
Pattern altitude: 1,029 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 +12°C

1,500FT
+1,471 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV29 FT OAT+26°C ISA DELTA+12°C PRESSURE ALT118 FT
// Performance equivalent Operating here right now feels like operating at RKSC (Surisan Helipad, Gunpo, elev 1,424 ft) on a standard ISA day.
// Aircraft performance impact MODERATE
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+15%
-11%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+11%
-7%
Light jetCJ4, Phenom 300, M2
+6%
-5%

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 · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 13,312 FT RKJK ELEV · 29 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL13,312 ft VFR MARGINunlimited

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

21:01ZSUNRISE
03:37ZSOLAR NOON
10:12ZSUNSET
10:38ZCIVIL END
CURRENT16:19Z DAYLIGHT REMAINING17h 52m VFR NIGHT BEGINS10:38Z (18h 19m) DAY LENGTH13h 10m
Waxing Gibbous
ILLUMINATION94% MOONRISE07:04Z MOONSET20:14Z FULL MOON IN2 days

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

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