London Airport

CYXU / YXU

London, CA

Current TAF Forecast

Raw TAF:
TAF CYXU 041140Z 0412/0512 VRB03KT 1/4SM FZFG VV002 TEMPO 0412/0413 1/2SM FZFG BECMG 0413/0415 P6SM NSW SCT006 FM041500 13005KT P6SM SCT006 TEMPO 0415/0416 5SM BR BKN006 FM041600 13007KT P6SM SKC BECMG 0422/0424 VRB03KT FM050400 07005KT P6SM SCT004 BKN020 PROB30 0504/0509 2SM BR BKN004 OVC020 FM050900 07007KT 6SM -RA -DZ BR BKN004 OVC015 RMK NXT FCST BY 041800Z

Detailed TAF Table

Parameter
Wed
13:00Z
+-1h
Wed
14:00Z
+0h
Wed
15:00Z
+1h
Wed
16:00Z
+2h
Wed
17:00Z
+3h
Wed
18:00Z
+4h
Wed
19:00Z
+5h
Wed
20:00Z
+6h
Wed
21:00Z
+7h
Wed
22:00Z
+8h
Wed
23:00Z
+9h
Thu
00:00Z
+10h
Thu
01:00Z
+11h
Thu
02:00Z
+12h
Thu
03:00Z
+13h
Thu
04:00Z
+14h
Thu
05:00Z
+15h
Thu
06:00Z
+16h
Thu
07:00Z
+17h
Thu
08:00Z
+18h
Thu
09:00Z
+19h
Thu
10:00Z
+20h
Wind Dir
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
Wind Speed
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
Visibility
1/4SM
1/4SM
5SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
2SM
2SM
2SM
2SM
2SM
>6SM
>6SM
Weather
Freezing Fog
FZFG
Freezing Fog
FZFG
Mist
BR
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Mist
BR
30%
Mist
BR
30%
Mist
BR
30%
Mist
BR
30%
Mist
BR
30%
☀️ Clear
☀️ Clear
Clouds
VV002
VV002
BKN006
SCT006
SCT006
SCT006
SCT006
SCT006
SCT006
SCT006
SCT006
SCT006
SCT006
SCT006
SCT006
BKN004
OVC020
BKN004
OVC020
BKN004
OVC020
BKN004
OVC020
BKN004
OVC020
SCT006
SCT006
Ceiling
200 ft 🌫️
Indefinite
200 ft 🌫️
Indefinite
600 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
400 ft
AGL
400 ft
AGL
400 ft
AGL
400 ft
AGL
400 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
Flight Rules LIFR LIFR IFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR LIFR LIFR LIFR LIFR LIFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
🌇 17:33Z
☀️
Day
🌇 17:33Z
☀️
Day
🌇 17:33Z
🌇
Dusk
🌇 17:33Z
🌙
Night
🌇 17:33Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:24Z
🌙
Night
🌅 06:24Z
🌅
Dawn
🌅 06:24Z
☀️
Day
🌅 06:24Z
☀️
Day
🌅 06:24Z
☀️
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
LIFR
Wind
VRB° at 3 kt
Visibility
1/4SM
Weather
Freezing Fog
Clouds
VV002
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 3 kt. Visibility will be moderate at 1/4SM. Weather conditions: Freezing Fog. Vertical visibility at 200 feet. Low IFR conditions - challenging even for instrument operations.

TEMPO 12:00Z - 13:00Z
IFR
Visibility
1/2SM
Weather
Freezing Fog
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be moderate at 1/2SM. Weather conditions: Freezing Fog. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 13:00Z - 15:00Z
VFR
Visibility
>6SM
Clouds
SCT006
📖 Plain English Explanation:

Conditions will gradually change to become: Visibility will be excellent at more than 6SM. Scattered clouds at 600 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM041500 15:00Z - 21:00Z
VFR
Wind
130° at 5 kt
Visibility
>6SM
Clouds
SCT006
📖 Plain English Explanation:

Winds from the Southeast (130°) at 5 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 600 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 15:00Z - 16:00Z
IFR
Visibility
5SM
Weather
Mist
Clouds
BKN006
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 5SM. Weather conditions: Mist. Broken clouds at 600 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM041600 16:00Z - 22:00Z
VFR
Wind
130° at 7 kt
Visibility
>6SM
Clouds
CLR
📖 Plain English Explanation:

Winds from the Southeast (130°) at 7 kt. Visibility will be excellent at more than 6SM. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 22:00Z - 00:00Z
VFR
Wind
VRB° at 3 kt
📖 Plain English Explanation:

Conditions will gradually change to become: Winds will be variable in direction at 3 kt. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM050400 04:00Z - 10:00Z
MVFR
Wind
70° at 5 kt
Visibility
>6SM
Clouds
SCT004 BKN020
📖 Plain English Explanation:

Winds from the East-Northeast (70°) at 5 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 400 feet, Broken clouds at 2000 feet. Marginal VFR conditions - some restrictions for visual flying.

PROB30 04:00Z - 09:00Z
LIFR
Visibility
2SM
Weather
Mist
Clouds
BKN004 OVC020
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be moderate at 2SM. Weather conditions: Mist. Broken clouds at 400 feet, Overcast skies at 2000 feet. Low IFR conditions - challenging even for instrument operations.

FM050900 09:00Z - 15:00Z
LIFR
Wind
70° at 7 kt
Visibility
6SM
Weather
Light Rain, Light Drizzle, Mist, FCST
Clouds
BKN004 OVC015
📖 Plain English Explanation:

Winds from the East-Northeast (70°) at 7 kt. Visibility will be excellent at 6SM. Weather conditions: Light Rain, Light Drizzle, Mist, FCST. Broken clouds at 400 feet, Overcast skies at 1500 feet. Low IFR conditions - challenging even for instrument 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.