Tainan International Airport / Tainan Air Base

RCNN / TNN

Tainan (Rende), TW

Current TAF Forecast

Raw TAF:
TAF RCNN 150500Z 1506/1606 34008KT 9999 FEW012 SCT030 BKN080 TX32/1605Z TN24/1520Z BECMG 1513/1516 36004KT FEW012 SCT060 TEMPO 1518/1523 8000 FEW012 BKN060 BECMG 1601/1604 36006KT FEW012 BKN060

Detailed TAF Table

Parameter
Fri
09:00Z
+-1h
Fri
10:00Z
+0h
Fri
11:00Z
+1h
Fri
12:00Z
+2h
Fri
13:00Z
+3h
Fri
14:00Z
+4h
Fri
15:00Z
+5h
Fri
16:00Z
+6h
Fri
17:00Z
+7h
Fri
18:00Z
+8h
Fri
19:00Z
+9h
Fri
20:00Z
+10h
Fri
21:00Z
+11h
Fri
22:00Z
+12h
Fri
23:00Z
+13h
Sat
00:00Z
+14h
Sat
01:00Z
+15h
Sat
02:00Z
+16h
Sat
03:00Z
+17h
Sat
04:00Z
+18h
Wind Dir
340°
N
340°
N
340°
N
340°
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
8 kt
8 kt
8 kt
8 kt
4 kt
4 kt
4 kt
4 kt
4 kt
6 kt
6 kt
6 kt
6 kt
6 kt
4 kt
4 kt
6 kt
6 kt
6 kt
6 kt
Visibility
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
10+ km
8 km
8 km
8 km
8 km
8 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
Clouds
FEW012
SCT030
FEW012
SCT030
FEW012
SCT030
FEW012
SCT030
FEW012
SCT060
FEW012
SCT060
FEW012
SCT060
FEW012
SCT060
FEW012
SCT060
FEW012
BKN060
FEW012
BKN060
FEW012
BKN060
FEW012
BKN060
FEW012
BKN060
FEW012
SCT060
FEW012
SCT060
FEW012
BKN060
FEW012
BKN060
FEW012
BKN060
FEW012
BKN060
Ceiling
8,000 ft
AGL
8,000 ft
AGL
8,000 ft
AGL
8,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
6,000 ft
AGL
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:37Z
☀️
Day
🌇 18:37Z
☀️
Day
🌇 18:37Z
🌇
Dusk
🌇 18:37Z
🌙
Night
🌇 18:37Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:22Z
🌙
Night
🌅 05:22Z
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
340° at 8 kt
Visibility
10+ km
Clouds
FEW012 SCT030 BKN080
📖 Plain English Explanation:

This is the base forecast condition. Winds from the North-Northwest (340°) at 8 kt. Visibility will be excellent at 10+ km. Few clouds at 1200 feet, Scattered clouds at 3000 feet, Broken clouds at 8000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 13:00Z - 16:00Z
VFR
Wind
360° at 4 kt
Clouds
FEW012 SCT060
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North (360°) at 4 kt. Few clouds at 1200 feet, Scattered clouds at 6000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

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

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 8 km. Few clouds at 1200 feet, Broken clouds at 6000 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 01:00Z - 04:00Z
VFR
Wind
360° at 6 kt
Clouds
FEW012 BKN060
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North (360°) at 6 kt. Few clouds at 1200 feet, Broken clouds at 6000 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.