Yokota Air Base

RJTY / OKO

Fussa, JP

Current TAF Forecast

Raw TAF:
TAF RJTY 040500Z 0405/0511 18009KT 9999 SCT025 OVC200 QNH2991INS TEMPO 0406/0410 18010G15KT BKN025 BECMG 0415/0417 VRB06KT 6000 -SHRA BR BKN006 OVC013 QNH2987INS BECMG 0500/0501 15009KT 8000 -SHRA BKN020 OVC030 QNH2990INS TX26/0405Z TN20/0421Z

Detailed TAF Table

Parameter
Sat
10:00Z
+-1h
Sat
11:00Z
+0h
Sat
12:00Z
+1h
Sat
13:00Z
+2h
Sat
14:00Z
+3h
Sat
15:00Z
+4h
Sat
16:00Z
+5h
Sat
17:00Z
+6h
Sat
18:00Z
+7h
Sat
19:00Z
+8h
Sat
20:00Z
+9h
Sat
21:00Z
+10h
Sat
22:00Z
+11h
Sat
23:00Z
+12h
Sun
00:00Z
+13h
Sun
01:00Z
+14h
Sun
02:00Z
+15h
Sun
03:00Z
+16h
Sun
04:00Z
+17h
Sun
05:00Z
+18h
Sun
06:00Z
+19h
Sun
07:00Z
+20h
Sun
08:00Z
+21h
Sun
09:00Z
+22h
Wind Dir
180°
S
180°
S
180°
S
180°
S
180°
S
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
150°
SE
Wind Speed
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
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
9 kt
Visibility
10+ km
10+ km
10+ km
10+ km
10+ km
6 km
6 km
6 km
6 km
6 km
6 km
6 km
6 km
6 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
Weather
☀️ Clear
☀️ 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
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
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
Clouds
SCT025
OVC200
SCT025
OVC200
SCT025
OVC200
SCT025
OVC200
SCT025
OVC200
BKN006
OVC013
BKN006
OVC013
BKN006
OVC013
BKN006
OVC013
BKN006
OVC013
BKN006
OVC013
BKN006
OVC013
BKN006
OVC013
BKN006
OVC013
BKN020
OVC030
BKN020
OVC030
BKN020
OVC030
BKN020
OVC030
BKN020
OVC030
BKN020
OVC030
BKN020
OVC030
BKN020
OVC030
BKN020
OVC030
BKN020
OVC030
Ceiling
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
600 ft
AGL
600 ft
AGL
600 ft
AGL
600 ft
AGL
600 ft
AGL
600 ft
AGL
600 ft
AGL
600 ft
AGL
600 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
2,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
Flight Rules VFR VFR VFR VFR VFR IFR IFR IFR IFR IFR IFR IFR IFR IFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 19:08Z
☀️
Day
🌇 19:08Z
☀️
Day
🌇 19:08Z
🌙
Night
🌇 19:08Z
🌙
Night
🌇 19:08Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 04:51Z
🌙
Night
🌅 04:51Z
🌙
Night
🌅 04:51Z
☀️
Day
🌅 04:51Z
☀️
Day
🌅 04:51Z
☀️
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
180° at 9 kt
Visibility
10+ km
Clouds
SCT025 OVC200
📖 Plain English Explanation:

This is the base forecast condition. Winds from the South (180°) at 9 kt. Visibility will be excellent at 10+ km. Scattered clouds at 2500 feet, Overcast skies at 20000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 06:00Z - 10:00Z
MVFR
Wind
180° at 10 kt
Gusts: 15 kt
Clouds
BKN025
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Winds from the South (180°) at 10 kt. Gusts up to 15 kt are expected. Broken clouds at 2500 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 15:00Z - 17:00Z
IFR
Wind
VRB° at 6 kt
Visibility
6 km
Weather
Light Showers Rain, Mist
Clouds
BKN006 OVC013
📖 Plain English Explanation:

Conditions will gradually change to become: 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 600 feet, Overcast skies at 1300 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 00:00Z - 01:00Z
MVFR
Wind
150° at 9 kt
Visibility
8 km
Weather
Light Showers Rain
Clouds
BKN020 OVC030
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the South-Southeast (150°) at 9 kt. Visibility will be good at 8 km. Weather conditions: Light Showers Rain. Broken clouds at 2000 feet, Overcast skies at 3000 feet. Marginal VFR conditions - some restrictions for visual flying.

📚 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.