Iwakuni Kintaikyo Airport / Marine Corps Air Station Iwakuni

RJOI / IWK

Iwakuni, JP

Current TAF Forecast

Raw TAF:
TAF AMD RJOI 041100Z 0411/0511 VRB06KT 9999 SCT010 SCT020 OVC040 621509 QNH2973INS FM041100 27006KT 9999 SCT010 SCT020 BKN040 621509 QNH2974INS TEMPO 0411/0417 BKN010 FM041700 VRB06KT 6000 -SHRA BR BKN020 BKN060 621509 QNH2973INS FM050300 14006KT 4800 SHRA BR SCT005 BKN015 OVC050 621509 QNH2972INS FM050900 VRB06KT 3200 SHRA BR SCT005 BKN010 OVC040 621509 QNH2972INS TX24/0505Z TN21/0420Z AMD 1100

Detailed TAF Table

Parameter
Sat
13:00Z
+-1h
Sat
14:00Z
+0h
Sat
15:00Z
+1h
Sat
16:00Z
+2h
Sat
17:00Z
+3h
Sat
18:00Z
+4h
Sat
19:00Z
+5h
Sat
20:00Z
+6h
Sat
21:00Z
+7h
Sat
22:00Z
+8h
Sat
23:00Z
+9h
Sun
00:00Z
+10h
Sun
01:00Z
+11h
Sun
02:00Z
+12h
Sun
03:00Z
+13h
Sun
04:00Z
+14h
Sun
05:00Z
+15h
Sun
06:00Z
+16h
Sun
07:00Z
+17h
Sun
08:00Z
+18h
Sun
09:00Z
+19h
Wind Dir
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
140°
SE
140°
SE
140°
SE
140°
SE
140°
SE
140°
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
6 kt
6 kt
6 kt
6 kt
Visibility
10+ km
10+ km
10+ km
10+ km
6 km
6 km
6 km
6 km
6 km
6 km
10+ km
10+ km
10+ km
10+ km
4.8 km
4.8 km
4.8 km
4.8 km
4.8 km
4.8 km
1.1 km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Showers Rain, Mist
SHRA BR
Showers Rain, Mist
SHRA BR
Showers Rain, Mist
SHRA BR
Showers Rain, Mist
SHRA BR
Showers Rain, Mist
SHRA BR
Showers Rain, Mist
SHRA BR
Showers Rain, Mist
SHRA BR
Clouds
SCT010
SCT020
SCT010
SCT020
SCT010
SCT020
SCT010
SCT020
BKN020
BKN060
BKN020
BKN060
BKN020
BKN060
BKN020
BKN060
BKN020
BKN060
BKN020
BKN060
SCT010
SCT020
SCT010
SCT020
SCT010
SCT020
SCT010
SCT020
SCT005
BKN015
SCT005
BKN015
SCT005
BKN015
SCT005
BKN015
SCT005
BKN015
SCT005
BKN015
SCT005
BKN010
Ceiling
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,000 ft
AGL
Flight Rules VFR VFR VFR VFR MVFR MVFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR IFR IFR IFR IFR IFR IFR LIFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 19:06Z
☀️
Day
🌇 19:06Z
☀️
Day
🌇 19:06Z
🌙
Night
🌇 19:06Z
🌙
Night
🌇 19:06Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 04:54Z
🌙
Night
🌅 04:54Z
🌙
Night
🌅 04:54Z
☀️
Day
🌅 04:54Z
☀️
Day
🌅 04:54Z
☀️
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
VFR
Wind
VRB° at 6 kt
Visibility
10+ km
Clouds
SCT010 SCT020 OVC040
📖 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. Scattered clouds at 1000 feet, Scattered clouds at 2000 feet, Overcast skies at 4000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM041100 11:00Z - 17:00Z
VFR
Wind
270° at 6 kt
Visibility
10+ km
Clouds
SCT010 SCT020 BKN040
📖 Plain English Explanation:

Winds from the West (270°) at 6 kt. Visibility will be excellent at 10+ km. Scattered clouds at 1000 feet, Scattered clouds at 2000 feet, Broken clouds at 4000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 11:00Z - 17:00Z
MVFR
Clouds
BKN010
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Broken clouds at 1000 feet. Marginal VFR conditions - some restrictions for visual flying.

FM041700 17:00Z - 23:00Z
MVFR
Wind
VRB° at 6 kt
Visibility
6 km
Weather
Light Showers Rain, Mist
Clouds
BKN020 BKN060
📖 Plain English Explanation:

Winds will be variable in direction at 6 kt. Visibility will be good at 6 km. Weather conditions: Light Showers Rain, Mist. Broken clouds at 2000 feet, Broken clouds at 6000 feet. Marginal VFR conditions - some restrictions for visual flying.

FM050300 03:00Z - 09:00Z
IFR
Wind
140° at 6 kt
Visibility
4.8 km
Weather
Showers Rain, Mist
Clouds
SCT005 BKN015 OVC050
📖 Plain English Explanation:

Winds from the Southeast (140°) at 6 kt. Visibility will be moderate at 4.8 km. Weather conditions: Showers Rain, Mist. Scattered clouds at 500 feet, Broken clouds at 1500 feet, Overcast skies at 5000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM050900 09:00Z - 15:00Z
LIFR
Wind
VRB° at 6 kt
Visibility
1.1 km
Weather
Showers Rain, Mist
Clouds
SCT005 BKN010 OVC040
📖 Plain English Explanation:

Winds will be variable in direction at 6 kt. Visibility will be poor at 1.1 km. Weather conditions: Showers Rain, Mist. Scattered clouds at 500 feet, Broken clouds at 1000 feet, Overcast skies at 4000 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.