Cheongju International Airport/Cheongju Air Base (K-59/G-513)

RKTU / CJJ

Cheongju, KR

Current TAF Forecast

Raw TAF:
TAF AMD RKTU 160930Z 1609/1712 24008KT 4800 -TSRA FEW018CB BKN030 OVC100 TN23/1621Z TX26/1706Z FM161130 24008KT -RA BKN030 OVC100 BECMG 1615/1616 24010KT 3200 BKN015 OVC030

Detailed TAF Table

Parameter
Tue
10:00Z
+-1h
Tue
11:00Z
+0h
Tue
12:00Z
+1h
Tue
13:00Z
+2h
Tue
14:00Z
+3h
Tue
15:00Z
+4h
Tue
16:00Z
+5h
Tue
17:00Z
+6h
Tue
18:00Z
+7h
Tue
19:00Z
+8h
Tue
20:00Z
+9h
Tue
21:00Z
+10h
Tue
22:00Z
+11h
Tue
23:00Z
+12h
Wed
00:00Z
+13h
Wed
01:00Z
+14h
Wed
02:00Z
+15h
Wed
03:00Z
+16h
Wed
04:00Z
+17h
Wed
05:00Z
+18h
Wed
06:00Z
+19h
Wed
07:00Z
+20h
Wed
08:00Z
+21h
Wed
09:00Z
+22h
Wed
10:00Z
+23h
Wind Dir
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
240°
SW
Wind Speed
8kt
8kt
8kt
8kt
8kt
10kt
10kt
10kt
10kt
10kt
10kt
10kt
10kt
10kt
10kt
10kt
10kt
10kt
10kt
10kt
10kt
10kt
10kt
10kt
10kt
Visibility
4.8 km
4.8 km
4.8 km
4.8 km
4.8 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
3.2 km
Weather
Light Thunderstorm Rain
-TSRA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
FEW018CB
BKN030
BKN030
OVC100
BKN030
OVC100
BKN030
OVC100
BKN030
OVC100
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
BKN015
OVC030
Ceiling
3000ft
AGL
3000ft
AGL
3000ft
AGL
3000ft
AGL
3000ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
1500ft
AGL
Flight Rules IFR VFR VFR VFR VFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:06
☀️
Day
🌇 18:06
☀️
Day
🌇 18:06
🌙
Night
🌇 18:06
🌙
Night
🌇 18:06
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:54
🌙
Night
🌅 05:54
🌙
Night
🌅 05:54
☀️
Day
🌅 05:54
☀️
Day
🌅 05:54
☀️
Day
☀️
Day
☀️
Day
Flight Rules
VFR: Visual Flight Rules
MVFR: Marginal VFR
IFR: Instrument Flight Rules
LIFR: Low IFR
Ceiling Colors
Red: < 500ft
Amber: 500-1000ft
Blue: 1000-3000ft
Green: > 3000ft
⛈️ TCU: Towering Cumulus
🌩️ CB: Cumulonimbus
+Nh: Hours from now%: Probability of occurrenceAGL: Above Ground Level

Forecast Periods

BASE
IFR
Wind
240° at 8 kt
Visibility
4.8 km
Weather
Light Thunderstorm Rain
Clouds
FEW018CB BKN030 OVC100
📖 Plain English Explanation:

This is the base forecast condition. Winds from the West-Southwest (240°) at 8kt. Visibility will be moderate at 4.8 km. Weather conditions: Light Thunderstorm Rain. Few clouds at 1800 feet, Broken clouds at 3000 feet, Overcast skies at 10000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM161130 2025-09-16 11:00:00 - 2025-09-16 17:00:00
VFR
Wind
240° at 8 kt
Weather
Light Rain
Clouds
BKN030 OVC100
📖 Plain English Explanation:

Winds from the West-Southwest (240°) at 8kt. Weather conditions: Light Rain. Broken clouds at 3000 feet, Overcast skies at 10000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 2025-09-16 15:00:00 - 2025-09-16 16:00:00
IFR
Wind
240° at 10 kt
Visibility
3.2 km
Clouds
BKN015 OVC030
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West-Southwest (240°) at 10kt. Visibility will be moderate at 3.2 km. Broken clouds at 1500 feet, Overcast skies at 3000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

📚 Understanding TAF Forecasts

Terminal Aerodrome Forecast (TAF) provides detailed weather forecasts specifically for aviation operations. Our system translates complex meteorological codes into plain English to help pilots of all experience levels understand forecasted conditions.

What TAF Includes:

  • • Wind direction, speed, and gusts
  • • Visibility in statute miles or kilometers
  • • Weather phenomena (rain, snow, fog, thunderstorms)
  • • Cloud coverage types and altitudes
  • • Forecast changes with timing
  • • Flight rules categories (VFR/IFR)

Change Indicators Explained:

  • BASE - Main forecast conditions
  • FM - Permanent change from specific time
  • BECMG - Gradual change over 2-4 hours
  • TEMPO - Temporary changes (less than 1 hour)
  • PROB30/40 - 30% or 40% probability

🛩️ Flight Rules Categories

VFR

Visual Flight Rules

  • • Ceiling ≥ 3000 ft
  • • Visibility ≥ 5 miles
  • • Good for visual flying

MVFR

Marginal VFR

  • • Ceiling 1000-3000 ft
  • • Visibility 3-5 miles
  • • Caution for VFR

IFR

Instrument Flight Rules

  • • Ceiling 500-1000 ft
  • • Visibility 1-3 miles
  • • Instruments required

LIFR

Low IFR

  • • Ceiling < 500 ft
  • • Visibility < 1 mile
  • • Challenging conditions

💡 TAF Reading Tips

For Student Pilots:

  • • Focus on the plain English explanations above
  • • Pay attention to flight rules categories
  • • Look for wind direction relative to runway headings
  • • Check for temporary conditions (TEMPO)

For Experienced Pilots:

  • • Cross-reference with raw TAF for precise timing
  • • Consider probability forecasts for alternate planning
  • • Monitor BECMG periods for gradual changes
  • • Always check current METAR vs TAF forecast

Important: TAF forecasts should always be supplemented with current METAR observations, PIREPs, and other weather information for complete situational awareness. Weather can change rapidly, and forecasts have inherent limitations.