Calgary International Airport

CYYC / YYC

Calgary, CA

Current TAF Forecast

Raw TAF:
TAF AMD CYYC 041050Z 0410/0506 17006KT 1 1/2SM BR OVC003 TEMPO 0410/0417 6SM -SN BR OVC008 PROB30 0410/0415 3/4SM BR FM041700 16006KT P6SM SCT008 OVC015 TEMPO 0417/0420 BKN008 FM042000 13008KT P6SM BKN200 FM050300 01006KT P6SM SCT005 BKN180 RMK NXT FCST BY 041200Z

Detailed TAF Table

Parameter
Wed
11:00Z
+-1h
Wed
12:00Z
+0h
Wed
13:00Z
+1h
Wed
14:00Z
+2h
Wed
15:00Z
+3h
Wed
16:00Z
+4h
Wed
17:00Z
+5h
Wed
18:00Z
+6h
Wed
19:00Z
+7h
Wed
20:00Z
+8h
Wed
21:00Z
+9h
Wed
22:00Z
+10h
Wed
23:00Z
+11h
Thu
00:00Z
+12h
Thu
01:00Z
+13h
Thu
02:00Z
+14h
Thu
03:00Z
+15h
Thu
04:00Z
+16h
Wind Dir
170°
S
170°
S
170°
S
170°
S
170°
S
170°
S
170°
S
170°
S
170°
S
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
170°
S
10°
N
10°
N
Wind Speed
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
6 kt
8 kt
8 kt
8 kt
8 kt
8 kt
8 kt
6 kt
6 kt
6 kt
Visibility
1/2SM
1/2SM
1/2SM
1/2SM
1/2SM
1/2SM
1/2SM
1/2SM
1/2SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
1/2SM
>6SM
>6SM
Weather
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Mist
BR
FCST
FCST
FCST
FCST
Clouds
OVC003
OVC003
OVC003
OVC003
OVC003
OVC003
BKN008
BKN008
BKN008
BKN200
BKN200
BKN200
BKN200
BKN200
BKN200
OVC003
SCT005
BKN180
SCT005
BKN180
Ceiling
300 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
300 ft
AGL
800 ft
AGL
800 ft
AGL
800 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
20,000 ft
AGL
300 ft
AGL
18,000 ft
AGL
18,000 ft
AGL
Flight Rules LIFR LIFR LIFR LIFR LIFR LIFR IFR IFR IFR VFR VFR VFR VFR VFR VFR LIFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:30Z
☀️
Day
🌇 17:30Z
☀️
Day
🌇 17:30Z
🌇
Dusk
🌇 17:30Z
🌙
Night
🌇 17:30Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:28Z
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
170° at 6 kt
Visibility
1/2SM
Weather
Mist
Clouds
OVC003
📖 Plain English Explanation:

This is the base forecast condition. Winds from the South (170°) at 6 kt. Visibility will be moderate at 1/2SM. Weather conditions: Mist. Overcast skies at 300 feet. Low IFR conditions - challenging even for instrument operations.

TEMPO 10:00Z - 17:00Z
IFR
Visibility
6SM
Weather
Light Snow, Mist
Clouds
OVC008
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be excellent at 6SM. Weather conditions: Light Snow, Mist. Overcast skies at 800 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

PROB30 10:00Z - 15:00Z
MVFR
Visibility
3/4SM
Weather
Mist
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be good at 3/4SM. Weather conditions: Mist. Marginal VFR conditions - some restrictions for visual flying.

FM041700 17:00Z - 23:00Z
MVFR
Wind
160° at 6 kt
Visibility
>6SM
Clouds
SCT008 OVC015
📖 Plain English Explanation:

Winds from the South-Southeast (160°) at 6 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 800 feet, Overcast skies at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 17:00Z - 20:00Z
IFR
Clouds
BKN008
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Broken clouds at 800 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM042000 20:00Z - 02:00Z
VFR
Wind
130° at 8 kt
Visibility
>6SM
Clouds
BKN200
📖 Plain English Explanation:

Winds from the Southeast (130°) at 8 kt. Visibility will be excellent at more than 6SM. Broken clouds at 20000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM050300 03:00Z - 09:00Z
VFR
Wind
10° at 6 kt
Visibility
>6SM
Weather
FCST
Clouds
SCT005 BKN180
📖 Plain English Explanation:

Winds from the North (10°) at 6 kt. Visibility will be excellent at more than 6SM. Weather conditions: FCST. Scattered clouds at 500 feet, Broken clouds at 18000 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.