Osan Air Base

RKSO / OSN

Pyeongtaek, KR

Current TAF Forecast

Raw TAF:
TAF RKSO 100500Z 1005/1111 27010G15KT 9999 SCT040 QNH2976INS BECMG 1010/1011 27006KT 8000 BR FEW040 QNH2981INS BECMG 1014/1015 25006KT 6000 BR SCT030 QNH2983INS TEMPO 1019/1023 4800 BR BKN010 BECMG 1100/1101 27009KT 9999 SCT025 QNH2985INS BECMG 1103/1104 29010G15KT 9999 SCT040 QNH2983INS TX27/1005Z TN16/1018Z

Detailed TAF Table

Parameter
Wed
07:00Z
+-1h
Wed
08:00Z
+0h
Wed
09:00Z
+1h
Wed
10:00Z
+2h
Wed
11:00Z
+3h
Wed
12:00Z
+4h
Wed
13:00Z
+5h
Wed
14:00Z
+6h
Wed
15:00Z
+7h
Wed
16:00Z
+8h
Wed
17:00Z
+9h
Wed
18:00Z
+10h
Wed
19:00Z
+11h
Wed
20:00Z
+12h
Wed
21:00Z
+13h
Wed
22:00Z
+14h
Wed
23:00Z
+15h
Thu
00:00Z
+16h
Thu
01:00Z
+17h
Thu
02:00Z
+18h
Thu
03:00Z
+19h
Thu
04:00Z
+20h
Thu
05:00Z
+21h
Thu
06:00Z
+22h
Thu
07:00Z
+23h
Thu
08:00Z
+24h
Thu
09:00Z
+25h
Wind Dir
270°
W
270°
W
270°
W
270°
W
270°
W
270°
W
270°
W
250°
W
250°
W
250°
W
250°
W
250°
W
290°
W
290°
W
290°
W
290°
W
250°
W
270°
W
270°
W
270°
W
290°
W
290°
W
290°
W
290°
W
290°
W
290°
W
290°
W
Wind Speed
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
6 kt
G15 kt
6 kt
G15 kt
6 kt
G15 kt
6 kt
G15 kt
6 kt
G15 kt
6 kt
G15 kt
6 kt
G15 kt
6 kt
G15 kt
6 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
6 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
10 kt
G15 kt
Visibility
10+ km
10+ km
10+ km
8 km
8 km
8 km
8 km
6 km
6 km
6 km
6 km
6 km
4.8 km
4.8 km
4.8 km
4.8 km
6 km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT040
SCT040
SCT040
FEW040
FEW040
FEW040
FEW040
SCT030
SCT030
SCT030
SCT030
SCT030
BKN010
BKN010
BKN010
BKN010
SCT030
SCT025
SCT025
SCT025
SCT040
SCT040
SCT040
SCT040
SCT040
SCT040
SCT040
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR IFR IFR IFR IFR MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 19:10Z
☀️
Day
🌇 19:10Z
☀️
Day
🌇 19:10Z
🌙
Night
🌇 19:10Z
🌙
Night
🌇 19:10Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 04:49Z
🌙
Night
🌅 04:49Z
🌙
Night
🌅 04:49Z
☀️
Day
🌅 04:49Z
☀️
Day
🌅 04:49Z
☀️
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 occurrence • AGL: Above Ground Level

Forecast Periods

BASE
VFR
Wind
270° at 10 kt
Gusts: 15 kt
Visibility
10+ km
Clouds
SCT040
📖 Plain English Explanation:

This is the base forecast condition. Winds from the West (270°) at 10 kt. Gusts up to 15 kt are expected. Visibility will be excellent at 10+ km. Scattered clouds at 4000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 10:00Z - 11:00Z
MVFR
Wind
270° at 6 kt
Visibility
8 km
Weather
Mist
Clouds
FEW040
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West (270°) at 6 kt. Visibility will be good at 8 km. Weather conditions: Mist. Few clouds at 4000 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 14:00Z - 15:00Z
MVFR
Wind
250° at 6 kt
Visibility
6 km
Weather
Mist
Clouds
SCT030
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West-Southwest (250°) at 6 kt. Visibility will be good at 6 km. Weather conditions: Mist. Scattered clouds at 3000 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 19:00Z - 23:00Z
IFR
Visibility
4.8 km
Weather
Mist
Clouds
BKN010
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be moderate at 4.8 km. Weather conditions: Mist. Broken clouds at 1000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 00:00Z - 01:00Z
VFR
Wind
270° at 9 kt
Visibility
10+ km
Clouds
SCT025
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West (270°) at 9 kt. Visibility will be excellent at 10+ km. Scattered clouds at 2500 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 03:00Z - 04:00Z
VFR
Wind
290° at 10 kt
Gusts: 15 kt
Visibility
10+ km
Clouds
SCT040
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West-Northwest (290°) at 10 kt. Gusts up to 15 kt are expected. Visibility will be excellent at 10+ km. Scattered clouds at 4000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

📚 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.