Yokota Air Base

RJTY / OKO

Fussa, JP

Current TAF Forecast

Raw TAF:
TAF RJTY 222100Z 2221/2403 VRB06KT 9999 BKN100 OVC140 651206 QNH2988INS BECMG 2302/2303 36009KT 9000 -DZ SCT030 BKN055 OVC070 651206 QNH2986INS BECMG 2304/2305 36009KT 8000 -SHRA BKN012 OVC018 640809 530009 531002 QNH2980INS BECMG 2310/2311 35012G18KT 4800 SHRA BKN007 OVC010 640809 560009 561008 QNH2977INS BECMG 2317/2318 36009KT 8000 -RA BKN010 OVC020 651008 560009 561008 QNH2978INS BECMG 2321/2322 36006KT 8000 -RA BKN020 OVC080 651008 QNH2986INS BECMG 2323/2324 04006KT 9999 NSW BKN100 621206 QNH2988INS BECMG 2401/2402 04006KT 9999 BKN100 OVC140 621206 QNH2989INS TX17/2301Z TN10/2319Z

Detailed TAF Table

Parameter
Thu
03:00Z
+-1h
Thu
04:00Z
+0h
Thu
05:00Z
+1h
Thu
06:00Z
+2h
Thu
07:00Z
+3h
Thu
08:00Z
+4h
Thu
09:00Z
+5h
Thu
10:00Z
+6h
Thu
11:00Z
+7h
Thu
12:00Z
+8h
Thu
13:00Z
+9h
Thu
14:00Z
+10h
Thu
15:00Z
+11h
Thu
16:00Z
+12h
Thu
17:00Z
+13h
Thu
18:00Z
+14h
Thu
19:00Z
+15h
Thu
20:00Z
+16h
Thu
21:00Z
+17h
Thu
22:00Z
+18h
Thu
23:00Z
+19h
Fri
00:00Z
+20h
Fri
01:00Z
+21h
Wind Dir
VRB
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
350°
N
350°
N
350°
N
350°
N
350°
N
350°
N
350°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
40°
NE
40°
NE
40°
NE
Wind Speed
6 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
12 kt
G18 kt
12 kt
G18 kt
12 kt
G18 kt
12 kt
G18 kt
12 kt
G18 kt
12 kt
G18 kt
12 kt
G18 kt
9 kt
G18 kt
9 kt
G18 kt
9 kt
G18 kt
9 kt
G18 kt
6 kt
G18 kt
6 kt
G18 kt
6 kt
G18 kt
6 kt
G18 kt
6 kt
G18 kt
Visibility
10+ km
8 km
8 km
8 km
8 km
8 km
8 km
4.8 km
4.8 km
4.8 km
4.8 km
4.8 km
4.8 km
4.8 km
8 km
8 km
8 km
8 km
8 km
8 km
10+ km
10+ km
10+ km
Weather
☀️ Clear
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Light Showers Rain
-SHRA
Showers Rain
SHRA
Showers Rain
SHRA
Showers Rain
SHRA
Showers Rain
SHRA
Showers Rain
SHRA
Showers Rain
SHRA
Showers Rain
SHRA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
BKN100
OVC140
BKN012
OVC018
BKN012
OVC018
BKN012
OVC018
BKN012
OVC018
BKN012
OVC018
BKN012
OVC018
BKN007
OVC010
BKN007
OVC010
BKN007
OVC010
BKN007
OVC010
BKN007
OVC010
BKN007
OVC010
BKN007
OVC010
BKN010
OVC020
BKN010
OVC020
BKN010
OVC020
BKN010
OVC020
BKN020
OVC080
BKN020
OVC080
BKN100
BKN100
BKN100
OVC140
Ceiling
10,000 ft
AGL
1,200 ft
AGL
1,200 ft
AGL
1,200 ft
AGL
1,200 ft
AGL
1,200 ft
AGL
1,200 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
1,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
Flight Rules VFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR IFR MVFR MVFR VFR VFR VFR
Day/Night
🌙
Night
🌅 05:24Z
🌙
Night
🌅 05:24Z
🌅
Dawn
🌅 05:24Z
☀️
Day
🌅 05:24Z
☀️
Day
🌅 05:24Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:35Z
☀️
Day
🌇 18:35Z
☀️
Day
🌇 18:35Z
🌇
Dusk
🌇 18:35Z
🌙
Night
🌇 18:35Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
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
VFR
Wind
VRB° at 6 kt
Visibility
10+ km
Clouds
BKN100 OVC140
📖 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 10000 feet, Overcast skies at 14000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 02:00Z - 03:00Z
VFR
Wind
360° at 9 kt
Visibility
9 km
Weather
Light Drizzle
Clouds
SCT030 BKN055 OVC070
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North (360°) at 9 kt. Visibility will be good at 9 km. Weather conditions: Light Drizzle. Scattered clouds at 3000 feet, Broken clouds at 5500 feet, Overcast skies at 7000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 04:00Z - 05:00Z
IFR
Wind
360° at 9 kt
Visibility
8 km
Weather
Light Showers Rain
Clouds
BKN012 OVC018
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North (360°) at 9 kt. Visibility will be good at 8 km. Weather conditions: Light Showers Rain. Broken clouds at 1200 feet, Overcast skies at 1800 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 10:00Z - 11:00Z
IFR
Wind
350° at 12 kt
Gusts: 18 kt
Visibility
4.8 km
Weather
Showers Rain
Clouds
BKN007 OVC010
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North (350°) at 12 kt. Gusts up to 18 kt are expected. Visibility will be moderate at 4.8 km. Weather conditions: Showers Rain. Broken clouds at 700 feet, Overcast skies at 1000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 17:00Z - 18:00Z
IFR
Wind
360° at 9 kt
Visibility
8 km
Weather
Light Rain
Clouds
BKN010 OVC020
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North (360°) at 9 kt. Visibility will be good at 8 km. Weather conditions: Light Rain. Broken clouds at 1000 feet, Overcast skies at 2000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 21:00Z - 22:00Z
MVFR
Wind
360° at 6 kt
Visibility
8 km
Weather
Light Rain
Clouds
BKN020 OVC080
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North (360°) at 6 kt. Visibility will be good at 8 km. Weather conditions: Light Rain. Broken clouds at 2000 feet, Overcast skies at 8000 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 23:00Z - 00:00Z
VFR
Wind
40° at 6 kt
Visibility
10+ km
Clouds
BKN100
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the Northeast (40°) at 6 kt. Visibility will be excellent at 10+ km. Broken clouds at 10000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 01:00Z - 02:00Z
VFR
Wind
40° at 6 kt
Visibility
10+ km
Clouds
BKN100 OVC140
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the Northeast (40°) at 6 kt. Visibility will be excellent at 10+ km. Broken clouds at 10000 feet, Overcast skies at 14000 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.