Iwakuni Kintaikyo Airport / Marine Corps Air Station Iwakuni

RJOI / IWK

Iwakuni, JP

Current TAF Forecast

Raw TAF:
TAF RJOI 142000Z 1421/1521 VRB06KT 9999 SKC QNH3008INS FM150400 17009KT 9999 SKC QNH3005INS FM151000 29006KT 9999 SKC QNH3009INS FM151800 31006KT 9999 FEW015 FEW030 QNH3014INS T14/1421Z T25/1506Z

Detailed TAF Table

Parameter
Fri
03:00Z
+-1h
Fri
04:00Z
+0h
Fri
05:00Z
+1h
Fri
06:00Z
+2h
Fri
07:00Z
+3h
Fri
08:00Z
+4h
Fri
09:00Z
+5h
Fri
10:00Z
+6h
Fri
11:00Z
+7h
Fri
12:00Z
+8h
Fri
13:00Z
+9h
Fri
14:00Z
+10h
Fri
15:00Z
+11h
Fri
16:00Z
+12h
Fri
17:00Z
+13h
Fri
18:00Z
+14h
Fri
19:00Z
+15h
Wind Dir
VRB
170°
S
170°
S
170°
S
170°
S
170°
S
170°
S
290°
W
290°
W
290°
W
290°
W
290°
W
290°
W
VRB
VRB
310°
NW
310°
NW
Wind Speed
6 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 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
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
CLR
FEW015
FEW030
FEW015
FEW030
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
🌙
Night
🌅 05:06Z
🌙
Night
🌅 05:06Z
🌅
Dawn
🌅 05:06Z
☀️
Day
🌅 05:06Z
☀️
Day
🌅 05:06Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:53Z
☀️
Day
🌇 18:53Z
☀️
Day
🌇 18:53Z
🌇
Dusk
🌇 18:53Z
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
CLR
📖 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. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM150400 04:00Z - 10:00Z
VFR
Wind
170° at 9 kt
Visibility
10+ km
Clouds
CLR
📖 Plain English Explanation:

Winds from the South (170°) at 9 kt. Visibility will be excellent at 10+ km. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM151000 10:00Z - 16:00Z
VFR
Wind
290° at 6 kt
Visibility
10+ km
Clouds
CLR
📖 Plain English Explanation:

Winds from the West-Northwest (290°) at 6 kt. Visibility will be excellent at 10+ km. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM151800 18:00Z - 00:00Z
VFR
Wind
310° at 6 kt
Visibility
10+ km
Clouds
FEW015 FEW030
📖 Plain English Explanation:

Winds from the Northwest (310°) at 6 kt. Visibility will be excellent at 10+ km. Few clouds at 1500 feet, Few clouds at 3000 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.