Lyon Bron Airport

LFLY / LYN

Chassieu, Lyon, FR

Current TAF Forecast

Raw TAF:
TAF LFLY 141700Z 1418/1518 18005KT 9999 BKN050 BECMG 1500/1502 CAVOK PROB30 TEMPO 1503/1507 0800 BCFG PROB40 TEMPO 1514/1518 34010KT 4000 SHRA SCT040TCU

Detailed TAF Table

Parameter
Sun
20:00Z
+-1h
Sun
21:00Z
+0h
Sun
22:00Z
+1h
Sun
23:00Z
+2h
Mon
00:00Z
+3h
Mon
01:00Z
+4h
Mon
02:00Z
+5h
Mon
03:00Z
+6h
Mon
04:00Z
+7h
Mon
05:00Z
+8h
Mon
06:00Z
+9h
Mon
07:00Z
+10h
Mon
08:00Z
+11h
Mon
09:00Z
+12h
Mon
10:00Z
+13h
Mon
11:00Z
+14h
Mon
12:00Z
+15h
Mon
13:00Z
+16h
Mon
14:00Z
+17h
Mon
15:00Z
+18h
Mon
16:00Z
+19h
Wind Dir
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
180°
S
340°
N
340°
N
340°
N
Wind Speed
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
10kt
10kt
10kt
Visibility
10+ km
10+ km
10+ km
10+ km
>10km
>10km
>10km
0.8 km
0.8 km
0.8 km
0.8 km
>10km
>10km
>10km
>10km
>10km
>10km
>10km
4 km
4 km
4 km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Patches Fog
BCFG
30%
Patches Fog
BCFG
30%
Patches Fog
BCFG
30%
Patches Fog
BCFG
30%
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Showers Rain
SHRA
40%
Showers Rain
SHRA
40%
Showers Rain
SHRA
40%
Clouds
BKN050
BKN050
BKN050
BKN050
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
SCT040TCU
SCT040TCU
SCT040TCU
Ceiling
5000ft
AGL
5000ft
AGL
5000ft
AGL
5000ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
4000ft ⛈️
TCU Base
4000ft ⛈️
TCU Base
4000ft ⛈️
TCU Base
Flight Rules VFR VFR VFR VFR VFR VFR VFR LIFR LIFR LIFR LIFR VFR VFR VFR VFR VFR VFR VFR IFR IFR IFR
Day/Night
🌙
Night
🌇 18:11
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:50
🌙
Night
🌅 05:50
🌙
Night
🌅 05:50
☀️
Day
🌅 05:50
☀️
Day
🌅 05:50
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:09
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 5 kt
Visibility
10+ km
Clouds
BKN050
📖 Plain English Explanation:

This is the base forecast condition. Winds from the South (180°) at 5kt. Visibility will be excellent at 10+ km. Broken clouds at 5000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 2025-09-15 00:00:00 - 2025-09-15 02:00:00
VFR
Visibility
>10km
📖 Plain English Explanation:

Conditions will gradually change to become: Visibility will be excellent at more than 10km. Conditions will be suitable for Visual Flight Rules (VFR) operations.

PROB30 TEMPO 2025-09-15 03:00:00 - 2025-09-15 07:00:00
LIFR
Visibility
0.8 km
Weather
Patches Fog
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be poor at 0.8 km. Weather conditions: Patches Fog. Low IFR conditions - challenging even for instrument operations.

PROB40 TEMPO 2025-09-15 14:00:00 - 2025-09-15 18:00:00
IFR
Wind
340° at 10 kt
Visibility
4 km
Weather
Showers Rain
Clouds
SCT040TCU
📖 Plain English Explanation:

There is a 40% probability of: Winds from the North-Northwest (340°) at 10kt. Visibility will be moderate at 4 km. Weather conditions: Showers Rain. Scattered clouds at 4000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

📚 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.