Tainan International Airport / Tainan Air Base

RCNN / TNN

Tainan (Rende), TW

Current TAF Forecast

Raw TAF:
TAF RCNN 041100Z 0412/0512 36006KT 9000 -RA FEW012 BKN025 BKN050 TX26/0505Z TN19/0420Z BECMG 0414/0417 36004KT 6000 -RA FEW010 SCT020 BKN040 TEMPO 0418/0423 9000 FEW012 BKN060 BECMG 0501/0504 36008KT 9999 TEMPO 0505/0510 FEW010 SCT030 BKN100

Detailed TAF Table

Parameter
Wed
12:00Z
+-1h
Wed
13:00Z
+0h
Wed
14:00Z
+1h
Wed
15:00Z
+2h
Wed
16:00Z
+3h
Wed
17:00Z
+4h
Wed
18:00Z
+5h
Wed
19:00Z
+6h
Wed
20:00Z
+7h
Wed
21:00Z
+8h
Wed
22:00Z
+9h
Wed
23:00Z
+10h
Thu
00:00Z
+11h
Thu
01:00Z
+12h
Thu
02:00Z
+13h
Thu
03:00Z
+14h
Thu
04:00Z
+15h
Thu
05:00Z
+16h
Thu
06:00Z
+17h
Thu
07:00Z
+18h
Thu
08:00Z
+19h
Thu
09:00Z
+20h
Thu
10:00Z
+21h
Wind Dir
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
360°
N
Wind Speed
6 kt
6 kt
4 kt
4 kt
4 kt
4 kt
8 kt
8 kt
8 kt
8 kt
8 kt
4 kt
4 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
Visibility
9 km
9 km
6 km
6 km
6 km
6 km
9 km
9 km
9 km
9 km
9 km
6 km
6 km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
Weather
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
Light Rain
-RA
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Light Rain
-RA
Light Rain
-RA
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
FEW012
BKN025
FEW012
BKN025
FEW010
SCT020
FEW010
SCT020
FEW010
SCT020
FEW010
SCT020
FEW012
BKN060
FEW012
BKN060
FEW012
BKN060
FEW012
BKN060
FEW012
BKN060
FEW010
SCT020
FEW010
SCT020
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
FEW010
SCT030
FEW010
SCT030
FEW010
SCT030
FEW010
SCT030
FEW010
SCT030
☀️ CLR
Ceiling
2,500 ft
AGL
2,500 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
🌤️ Unlimited
Flight Rules MVFR MVFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR MVFR MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:44Z
☀️
Day
🌇 17:44Z
☀️
Day
🌇 17:44Z
🌇
Dusk
🌇 17:44Z
🌙
Night
🌇 17:44Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:14Z
🌙
Night
🌅 06:14Z
🌅
Dawn
🌅 06:14Z
☀️
Day
🌅 06:14Z
☀️
Day
🌅 06:14Z
☀️
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
MVFR
Wind
360° at 6 kt
Visibility
9 km
Weather
Light Rain
Clouds
FEW012 BKN025 BKN050
📖 Plain English Explanation:

This is the base forecast condition. Winds from the North (360°) at 6 kt. Visibility will be good at 9 km. Weather conditions: Light Rain. Few clouds at 1200 feet, Broken clouds at 2500 feet, Broken clouds at 5000 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 14:00Z - 17:00Z
MVFR
Wind
360° at 4 kt
Visibility
6 km
Weather
Light Rain
Clouds
FEW010 SCT020 BKN040
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North (360°) at 4 kt. Visibility will be good at 6 km. Weather conditions: Light Rain. Few clouds at 1000 feet, Scattered clouds at 2000 feet, Broken clouds at 4000 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 18:00Z - 23:00Z
VFR
Visibility
9 km
Clouds
FEW012 BKN060
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 9 km. Few clouds at 1200 feet, Broken clouds at 6000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 01:00Z - 04:00Z
VFR
Wind
360° at 8 kt
Visibility
10+ km
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North (360°) at 8 kt. Visibility will be excellent at 10+ km. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 05:00Z - 10:00Z
VFR
Clouds
FEW010 SCT030 BKN100
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Few clouds at 1000 feet, Scattered clouds at 3000 feet, Broken clouds at 10000 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.