Iwakuni Kintaikyo Airport / Marine Corps Air Station Iwakuni

RJOI / IWK

Iwakuni, JP

Current TAF Forecast

Raw TAF:
TAF RJOI 221200Z 2213/2313 VRB06KT 6000 -SHRA FEW015 BKN030 OVC100 621208 QNH2980INS FM222100 02009KT 4800 -SHRA FEW010 BKN030 OVC080 621308 QNH2970INS TEMPO 2221/2300 4000 -SHRA BKN015 FM230000 03012G22KT 4000 -SHRA FEW010 BKN020 OVC050 600000 520005 QNH2960INS FM230300 03010G20KT 4800 -SHRA FEW010 BKN030 OVC080 520005 QNH2961INS FM230900 03010G20KT 9999 FEW015 BKN030 BKN100 520005 QNH2962INS T12/2221Z T15/2306Z LAST NO AMDS AFT 2214 NEXT 2221

Detailed TAF Table

Parameter
Wed
14:00Z
+-1h
Wed
15:00Z
+0h
Wed
16:00Z
+1h
Wed
17:00Z
+2h
Wed
18:00Z
+3h
Wed
19:00Z
+4h
Wed
20:00Z
+5h
Wed
21:00Z
+6h
Wed
22:00Z
+7h
Wed
23:00Z
+8h
Thu
00:00Z
+9h
Thu
01:00Z
+10h
Thu
02:00Z
+11h
Thu
03:00Z
+12h
Thu
04:00Z
+13h
Thu
05:00Z
+14h
Thu
06:00Z
+15h
Thu
07:00Z
+16h
Thu
08:00Z
+17h
Thu
09:00Z
+18h
Thu
10:00Z
+19h
Thu
11:00Z
+20h
Wind Dir
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
30°
NE
Wind Speed
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
12 kt
G22 kt
12 kt
G22 kt
12 kt
G22 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
Visibility
6 km
6 km
6 km
6 km
6 km
6 km
6 km
4 km
4 km
4 km
4 km
4 km
4 km
4.8 km
4.8 km
4.8 km
4.8 km
4.8 km
4.8 km
2.221 km
2.221 km
2.221 km
Weather
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
FEW015
BKN030
FEW015
BKN030
FEW015
BKN030
FEW015
BKN030
FEW015
BKN030
FEW015
BKN030
FEW015
BKN030
BKN015
BKN015
BKN015
FEW010
BKN020
FEW010
BKN020
FEW010
BKN020
FEW010
BKN030
FEW010
BKN030
FEW010
BKN030
FEW010
BKN030
FEW010
BKN030
FEW010
BKN030
FEW015
BKN030
FEW015
BKN030
FEW015
BKN030
Ceiling
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
Flight Rules MVFR MVFR MVFR MVFR MVFR MVFR MVFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
🌇 18:33Z
☀️
Day
🌇 18:33Z
☀️
Day
🌇 18:33Z
🌇
Dusk
🌇 18:33Z
🌙
Night
🌇 18:33Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:25Z
🌙
Night
🌅 05:25Z
🌅
Dawn
🌅 05:25Z
☀️
Day
🌅 05:25Z
☀️
Day
🌅 05:25Z
☀️
Day
☀️
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
MVFR
Wind
VRB° at 6 kt
Visibility
6 km
Weather
Light Showers Rain
Clouds
FEW015 BKN030 OVC100
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 6 kt. Visibility will be good at 6 km. Weather conditions: Light Showers Rain. Few clouds at 1500 feet, Broken clouds at 3000 feet, Overcast skies at 10000 feet. Marginal VFR conditions - some restrictions for visual flying.

FM222100 21:00Z - 03:00Z
IFR
Wind
20° at 9 kt
Visibility
4.8 km
Weather
Light Showers Rain
Clouds
FEW010 BKN030 OVC080
📖 Plain English Explanation:

Winds from the North-Northeast (20°) at 9 kt. Visibility will be moderate at 4.8 km. Weather conditions: Light Showers Rain. Few clouds at 1000 feet, Broken clouds at 3000 feet, Overcast skies at 8000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

TEMPO 21:00Z - 00:00Z
IFR
Visibility
4 km
Weather
Light Showers Rain
Clouds
BKN015
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be moderate at 4 km. Weather conditions: Light Showers Rain. Broken clouds at 1500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM230000 00:00Z - 06:00Z
IFR
Wind
30° at 12 kt
Gusts: 22 kt
Visibility
4 km
Weather
Light Showers Rain
Clouds
FEW010 BKN020 OVC050
📖 Plain English Explanation:

Winds from the North-Northeast (30°) at 12 kt. Gusts up to 22 kt are expected. Visibility will be moderate at 4 km. Weather conditions: Light Showers Rain. Few clouds at 1000 feet, Broken clouds at 2000 feet, Overcast skies at 5000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM230300 03:00Z - 09:00Z
IFR
Wind
30° at 10 kt
Gusts: 20 kt
Visibility
4.8 km
Weather
Light Showers Rain
Clouds
FEW010 BKN030 OVC080
📖 Plain English Explanation:

Winds from the North-Northeast (30°) at 10 kt. Gusts up to 20 kt are expected. Visibility will be moderate at 4.8 km. Weather conditions: Light Showers Rain. Few clouds at 1000 feet, Broken clouds at 3000 feet, Overcast skies at 8000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM230900 09:00Z - 15:00Z
IFR
Wind
30° at 10 kt
Gusts: 20 kt
Visibility
2.221 km
Clouds
FEW015 BKN030 BKN100
📖 Plain English Explanation:

Winds from the North-Northeast (30°) at 10 kt. Gusts up to 20 kt are expected. Visibility will be moderate at 2.221 km. Few clouds at 1500 feet, Broken clouds at 3000 feet, Broken clouds at 10000 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.