WxDecoder

RKTU/CJJ METAR & TAF Cheongju International Airport/Cheongju Air Base (K-59/G-513)

Cheongju, Chungcheongbuk-do (North Chungcheong Province)Elevation 191 ftLarge airport
CURRENT STATUS
VFR22 min old
Ceiling and visibility OK.
FLIGHT CATEGORY
VFR
CAVOK
WIND
030@2
steady
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
DENSITY ALT
66 ft
-125 ft vs field
CURRENT METAR

Decoded observation

Observed 2117Z (6:17 AM local) · 22 min old

RKTU is currently VFR. Winds are from the northeast at 2 knots. Ceiling and visibility are OK (CAVOK).

WIND
30° at 2 kt
Steady.
VISIBILITY
10 statute miles
16.1 km, good.
CEILING & SKY
CAVOK
Vis 10 km+, no cloud below 5,000 ft.
TEMP / DEWPOINT
15°C / 11°C
59°F / 52°F. 4°C spread.
ALTIMETER
30.09 inHg
1019 hPa, above standard.
WEATHER & HAZARDS
No significant hazards
No precipitation or obscuration reported.

Codes in this report: CAVOK RMK CIG

Hover or tap any group for a plain-English explanation.

REMARKS: DECODED
CIG060
unrecognized remark group
TERMINAL AERODROME FORECAST

TAF timeline

Issued 1700Z (2:00 AM local) · valid to 0000Z (9:00 AM local)

RKTU forecast starts VFR at 18Z. Worst period is 04Z to 05Z with MVFR possible. Best period is 18Z to 04Z (VFR). Overall the forecast deteriorates over the period.

  • Maximum temperature 22°C expected at 0600Z on day 26.
  • Minimum temperature 7°C expected at 2100Z on day 26.
BKN10010,000 ft
BKN0303,000 ft
1800Z3:00 AM0000Z9:00 AM0600Z3:00 PM1200Z9:00 PM1800Z3:00 AM0000Z9:00 AM

Codes in this report: 9999 SCT BKN BECMG

Tap any group to decode it.

SUGGESTED RISK · TRAINING USE

Suggested risk level: Low

›No significant weather concerns in the current report.

A suggested risk level for training and situational awareness only, not a go/no-go authority. Verify with official sources and apply your personal minimums.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Pilot weather notes

Current aviation conditions show flight category VFR, wind from 30° at 2 kt, visibility 10 SM, ceiling CAVOK. No extended National Weather Service forecast is available for this location. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

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RUNWAYS & WIND
2 runways · crosswind ranking
ON-FIELD METAR
NESW06L24R06R24L 30°30°2 kt30°30° 230°
READING THE BARB · SWIPE FOR MORE →
Calm
5 kt
10 kt
15 kt
20 kt
25 kt
30 kt
35 kt
40 kt
45 kt
50 kt
65 kt
75 kt
100 kt
105 kt
Half feather = 5 kt, full = 10 kt, filled pennant = 50 kt; add them up. The staff points the direction the wind blows from.
WIND USED
030° at 2 kt
Components computed from the current on-field METAR wind.
RECOMMENDED
RWY 06L2 kt headwind · 1 kt crosswind
RUNWAYS BY WIND · best end
06L
HEAD
2 kt
CROSS
1 kt L
BEST
06R
HEAD
2 kt
CROSS
1 kt L
OK
24L
HEAD
2 kt tail
CROSS
1 kt R
OK
24R
HEAD
2 kt tail
CROSS
1 kt R
OK
Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.
RUNWAYS

Runway detail

06L/24R
Dimensions
9,000 x 200 ft
Surface
CON
Lighting
Lighted
06R/24L
Dimensions
9,000 x 150 ft
Surface
CON
Lighting
Lighted
FIELD CONDITIONS

Performance & density altitude

Density altitude
66 ft
Pressure altitude
21 ft
Field elevation
191 ft MSL
Temperature
15°C (59°F)
Dewpoint
11°C (52°F)
Altimeter
30.09 inHg

Density altitude estimates how the aircraft performs versus standard atmosphere. Higher density altitude reduces climb performance and increases takeoff distance.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0841Z 5:41 PM
Sunrise
2146Z 6:46 AM
Loggable night
0908Z (6:08 PM local) → 2120Z (6:20 AM local)
end of evening to start of morning civil twilight
Position lights required
0841Z (5:41 PM local) → 2146Z (6:46 AM local)
sunset to sunrise (91.209)
Night passenger currency
0941Z (6:41 PM local) → 2046Z (5:46 AM local)
1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Cheongju International Airport/Cheongju Air Base (K-59/G-513) is in Cheongju, Chungcheongbuk-do (North Chungcheong Province). Field elevation 191 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
UseScheduled service
TypeLarge airport
Airline serviceYes
CHARTS & AIRSPACE
ICAO / IATARKTU / CJJ
RegionChungcheongbuk-do (North Chungcheong Province)
CountrySouth Korea
Coordinates36.7156, 127.5003
SERVICES & LIGHTING
Control towerNon-towered
FREQUENCIES

Communications

120
BRICKWALL
ACP
134
JUNGWON APP
APP
128.85
ATIS
ATIS
134
JUNGWON DEP
DEP
134
Cheongju Intl Approach
RKTU_APP
120.65
Cheongju Intl Ground
RKTU_GND
118.7
Cheongju Intl Tower
RKTU_TWR

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

Current flight category at nearby reporting stations.

RKSG Camp Humphreys (A-511) Desiderio Army Airfield
27 NM NW
VFR
RKSO Osan Air Base
32 NM NW
VFR
RKSS Gimpo International Airport
61 NM NW
VFR
RKJK Gunsan Airport / Gunsan Air Base
65 NM SW
VFR
RKSI Incheon International Airport
68 NM NW
VFR
RKTN Daegu International Airport
75 NM SE
VFR
OFFICIAL LINKS & SOURCES
↗Official METAR on AviationWeather.gov
↗Official airport website
↗Wikipedia
↗RKTU on OurAirports
FREQUENTLY ASKED
Does RKTU have a METAR?
Yes. RKTU has a current METAR observation, decoded into plain English on this page.
Does RKTU have a TAF?
Yes, a TAF is issued for RKTU; the decoded forecast timeline is shown above.
What is the field elevation at RKTU?
RKTU sits at 191 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for RKTU?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.