Osan Air Base

RKSO / OSN

Pyeongtaek, KR

Current TAF Forecast

Raw TAF:
TAF AMD RKSO 140513Z 1405/1511 VRB06KT 9999 BKN090 BKN240 QNH2963INS BECMG 1418/1419 VRB06KT 9999 FEW040 BKN140 QNH2965INS BECMG 1502/1503 13009KT 9999 BKN035 BKN140 QNH2968INS BECMG 1509/1510 VRB06KT 9999 SCT065 BKN130 QNH2967INS TX32/1405Z TN24/1421Z LAST NO AMDS AFT 1405 NEXT 1521

Detailed TAF Table

Parameter
Fri
09:00Z
+-1h
Fri
10:00Z
+0h
Fri
11:00Z
+1h
Fri
12:00Z
+2h
Fri
13:00Z
+3h
Fri
14:00Z
+4h
Fri
15:00Z
+5h
Fri
16:00Z
+6h
Fri
17:00Z
+7h
Fri
18:00Z
+8h
Fri
19:00Z
+9h
Fri
20:00Z
+10h
Fri
21:00Z
+11h
Fri
22:00Z
+12h
Fri
23:00Z
+13h
Sat
00:00Z
+14h
Sat
01:00Z
+15h
Sat
02:00Z
+16h
Sat
03:00Z
+17h
Sat
04:00Z
+18h
Sat
05:00Z
+19h
Sat
06:00Z
+20h
Sat
07:00Z
+21h
Sat
08:00Z
+22h
Sat
09:00Z
+23h
Wind Dir
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
VRB
Wind Speed
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
6 kt
Visibility
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
1.521 km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
BKN090
BKN240
BKN090
BKN240
BKN090
BKN240
BKN090
BKN240
BKN090
BKN240
BKN090
BKN240
BKN090
BKN240
BKN090
BKN240
BKN090
BKN240
FEW040
BKN140
FEW040
BKN140
FEW040
BKN140
FEW040
BKN140
FEW040
BKN140
FEW040
BKN140
FEW040
BKN140
FEW040
BKN140
BKN035
BKN140
BKN035
BKN140
BKN035
BKN140
BKN035
BKN140
BKN035
BKN140
BKN035
BKN140
BKN035
BKN140
SCT065
BKN130
Ceiling
9,000 ft
AGL
9,000 ft
AGL
9,000 ft
AGL
9,000 ft
AGL
9,000 ft
AGL
9,000 ft
AGL
9,000 ft
AGL
9,000 ft
AGL
9,000 ft
AGL
14,000 ft
AGL
14,000 ft
AGL
14,000 ft
AGL
14,000 ft
AGL
14,000 ft
AGL
14,000 ft
AGL
14,000 ft
AGL
14,000 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
13,000 ft
AGL
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR LIFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:44Z
☀️
Day
🌇 18:44Z
☀️
Day
🌇 18:44Z
🌇
Dusk
🌇 18:44Z
🌙
Night
🌇 18:44Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:16Z
🌙
Night
🌅 05:16Z
🌅
Dawn
🌅 05:16Z
☀️
Day
🌅 05:16Z
☀️
Day
🌅 05:16Z
☀️
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
VFR
Wind
VRB° at 6 kt
Visibility
10+ km
Clouds
BKN090 BKN240
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 6 kt. Visibility will be excellent at 10+ km. Broken clouds at 9000 feet, Broken clouds at 24000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 18:00Z - 19:00Z
VFR
Wind
VRB° at 6 kt
Visibility
10+ km
Clouds
FEW040 BKN140
📖 Plain English Explanation:

Conditions will gradually change to become: Winds will be variable in direction at 6 kt. Visibility will be excellent at 10+ km. Few clouds at 4000 feet, Broken clouds at 14000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 02:00Z - 03:00Z
VFR
Wind
130° at 9 kt
Visibility
10+ km
Clouds
BKN035 BKN140
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the Southeast (130°) at 9 kt. Visibility will be excellent at 10+ km. Broken clouds at 3500 feet, Broken clouds at 14000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 09:00Z - 10:00Z
LIFR
Wind
VRB° at 6 kt
Visibility
1.521 km
Clouds
SCT065 BKN130
📖 Plain English Explanation:

Conditions will gradually change to become: Winds will be variable in direction at 6 kt. Visibility will be moderate at 1.521 km. Scattered clouds at 6500 feet, Broken clouds at 13000 feet. Low IFR conditions - challenging even for instrument 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.