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// Station · 27m ago

RKSO

Osan Air Base
CAT VFR
WIND CALM
VIS 7.0 SM
CEILING CLR
T/Td 25.8°C / 25.6°C
ALTIM 29.82 inHg
ELEV 38 FT
37.0915°N / 127.0294°E
LOCATION · Pyeongtaek, KR
N
WIND
000°0 kt
RKSO · 38 FT
© OSM · CartoDB

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

METRIC
NOW · 18Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
7.0 SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
26 / 26
 
 
 
ALTIM
29.82"
 
 
 

// Interpretation

VFR with winds calm. Visibility 7.0 SM 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 RKSO 111855Z AUTO 00000KT 7SM CLR 26/26 A2982 RMK AO2 SLP101 T02580256 FZRANO $

RKSO · day 11 at 18:55 UTC · winds calm · visibility 7.0 SM · temp 26°C / dewpoint 26°C · altimeter 29.82" Hg · automated station w/ precipitation discriminator · sea-level pressure 1010.1 mb

// Runway analysis · computed from current METAR wind

Wind CALM
ALL USABLE · WINDS CALM
N
WIND
000°calm
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 4 ends
09L HDG 090° CALM 9,004'
27R HDG 270° CALM 9,004'
09R HDG 090° CALM 9,004'
27L HDG 270° CALM 9,004'
Pattern altitude: 1,038 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 +11°C

1,500FT
+1,462 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +300 FT
2,600 1,800 1,000
24h AGO18h12h6hNOW
FIELD ELEV38 FT OAT+26°C ISA DELTA+11°C PRESSURE ALT136 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 MINOR
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.

// Cloud layers · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 13,068 FT RKSO ELEV · 38 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL13,068 ft VFR MARGINunlimited

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

20:22ZSUNRISE
03:38ZSOLAR NOON
10:54ZSUNSET
11:24ZCIVIL END
CURRENT19:22Z DAYLIGHT REMAINING15h 32m VFR NIGHT BEGINS11:24Z (16h 02m) DAY LENGTH14h 32m
Waning Crescent
ILLUMINATION10% MOONRISE17:56Z MOONSET08:28Z FULL MOON IN18 days

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

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

© OpenStreetMap · CartoDB · OpenAIP
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