Iwakuni Kintaikyo Airport / Marine Corps Air Station Iwakuni

RJOI / IWK

Iwakuni, JP

Current TAF Forecast

Raw TAF:
TAF RJOI 1713/1813 30005KT 9999 FEW020 QNH3009INS FM172100 01005KT 9999 FEW020 QNH3010INS FM180000 04005KT 9999 FEW015 SCT030 QNH3006INS FM180600 VRB05KT 9999 FEW025 SCT090 QNH3006INS FM181000 VRB05KT 9999 FEW020 SCT090 QNH3009INS T05/1721Z T14/1806Z

Detailed TAF Table

Parameter
Sat
18:00Z
+-1h
Sat
19:00Z
+0h
Sat
20:00Z
+1h
Sat
21:00Z
+2h
Sat
22:00Z
+3h
Sat
23:00Z
+4h
Sun
00:00Z
+5h
Sun
01:00Z
+6h
Sun
02:00Z
+7h
Sun
03:00Z
+8h
Sun
04:00Z
+9h
Sun
05:00Z
+10h
Sun
06:00Z
+11h
Sun
07:00Z
+12h
Sun
08:00Z
+13h
Sun
09:00Z
+14h
Sun
10:00Z
+15h
Sun
11:00Z
+16h
Sun
12:00Z
+17h
Sun
13:00Z
+18h
Sun
14:00Z
+19h
Wind Dir
300°
NW
300°
NW
300°
NW
10°
N
10°
N
10°
N
40°
NE
40°
NE
40°
NE
40°
NE
40°
NE
40°
NE
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
Wind Speed
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
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
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
FEW020
FEW020
FEW020
FEW020
FEW020
FEW020
FEW015
SCT030
FEW015
SCT030
FEW015
SCT030
FEW015
SCT030
FEW015
SCT030
FEW015
SCT030
FEW025
SCT090
FEW025
SCT090
FEW025
SCT090
FEW025
SCT090
FEW020
SCT090
FEW020
SCT090
FEW020
SCT090
FEW020
SCT090
FEW020
SCT090
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ 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 VFR VFR VFR VFR
Day/Night
🌙
Night
🌇 16:59
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 07:00
🌙
Night
🌅 07:00
🌅
Dawn
🌅 07:00
☀️
Day
🌅 07:00
☀️
Day
🌅 07:00
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 16:59
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
300° at 5 kt
Visibility
10+ km
Clouds
FEW020
📖 Plain English Explanation:

This is the base forecast condition. Winds from the West-Northwest (300°) at 5kt. Visibility will be excellent at 10+ km. Few clouds at 2000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM172100 2026-01-17 21:00:00 - 2026-01-18 03:00:00
VFR
Wind
10° at 5 kt
Visibility
10+ km
Clouds
FEW020
📖 Plain English Explanation:

Winds from the North (10°) at 5kt. Visibility will be excellent at 10+ km. Few clouds at 2000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM180000 2026-01-18 00:00:00 - 2026-01-18 06:00:00
VFR
Wind
40° at 5 kt
Visibility
10+ km
Clouds
FEW015 SCT030
📖 Plain English Explanation:

Winds from the Northeast (40°) at 5kt. Visibility will be excellent at 10+ km. Few clouds at 1500 feet, Scattered clouds at 3000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM180600 2026-01-18 06:00:00 - 2026-01-18 12:00:00
VFR
Wind
VRB° at 5 kt
Visibility
10+ km
Clouds
FEW025 SCT090
📖 Plain English Explanation:

Winds will be variable in direction at 5kt. Visibility will be excellent at 10+ km. Few clouds at 2500 feet, Scattered clouds at 9000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM181000 2026-01-18 10:00:00 - 2026-01-18 16:00:00
VFR
Wind
VRB° at 5 kt
Visibility
10+ km
Clouds
FEW020 SCT090
📖 Plain English Explanation:

Winds will be variable in direction at 5kt. Visibility will be excellent at 10+ km. Few clouds at 2000 feet, Scattered clouds at 9000 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.