St. John's International Airport

CYYT / YYT

St. John's, CA

Current TAF Forecast

Raw TAF:
TAF AMD CYYT 040905Z 0409/0506 VRB03KT P6SM SCT002 OVC120 TEMPO 0409/0413 1SM -SHRA BR OVC002 BECMG 0410/0412 26010KT FM041300 27012KT P6SM BKN005 BECMG 0413/0415 SCT005 FM041600 26012G22KT P6SM FEW015 BECMG 0500/0502 26010KT FM050300 29008KT 6SM BR FEW002 BECMG 0503/0505 1/2SM FG VV002 RMK NXT FCST BY 041200Z

Detailed TAF Table

Parameter
Sat
09:00Z
+-1h
Sat
10:00Z
+0h
Sat
11:00Z
+1h
Sat
12:00Z
+2h
Sat
13:00Z
+3h
Sat
14:00Z
+4h
Sat
15:00Z
+5h
Sat
16:00Z
+6h
Sat
17:00Z
+7h
Sat
18:00Z
+8h
Sat
19:00Z
+9h
Sat
20:00Z
+10h
Sat
21:00Z
+11h
Sat
22:00Z
+12h
Sat
23:00Z
+13h
Sun
00:00Z
+14h
Sun
01:00Z
+15h
Sun
02:00Z
+16h
Sun
03:00Z
+17h
Sun
04:00Z
+18h
Wind Dir
VRB
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
Wind Speed
3 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
G22 kt
10 kt
G22 kt
10 kt
G22 kt
10 kt
G22 kt
10 kt
G22 kt
10 kt
G22 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
10 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
1/2SM
1/2SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Fog, FCST
FG FCST
Fog, FCST
FG FCST
Clouds
SCT002
OVC120
☀️ CLR
☀️ CLR
☀️ CLR
SCT005
SCT005
SCT005
SCT005
SCT005
SCT005
SCT005
SCT005
SCT005
SCT005
SCT005
☀️ CLR
☀️ CLR
☀️ CLR
VV002
VV002
Ceiling
12,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
200 ft 🌫️
Indefinite
200 ft 🌫️
Indefinite
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR LIFR LIFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 19:26Z
☀️
Day
🌇 19:26Z
☀️
Day
🌇 19:26Z
🌙
Night
🌇 19:26Z
🌙
Night
🌇 19:26Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 04:33Z
🌙
Night
🌅 04:33Z
🌙
Night
🌅 04:33Z
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
VRB° at 3 kt
Visibility
>6SM
Clouds
SCT002 OVC120
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 3 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 200 feet, Overcast skies at 12000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 09:00Z - 13:00Z
LIFR
Visibility
1SM
Weather
Light Showers Rain, Mist
Clouds
OVC002
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be moderate at 1SM. Weather conditions: Light Showers Rain, Mist. Overcast skies at 200 feet. Low IFR conditions - challenging even for instrument operations.

BECMG 10:00Z - 12:00Z
VFR
Wind
260° at 10 kt
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West (260°) at 10 kt. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM041300 13:00Z - 19:00Z
IFR
Wind
270° at 12 kt
Visibility
>6SM
Clouds
BKN005
📖 Plain English Explanation:

Winds from the West (270°) at 12 kt. Visibility will be excellent at more than 6SM. Broken clouds at 500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 13:00Z - 15:00Z
VFR
Clouds
SCT005
📖 Plain English Explanation:

Conditions will gradually change to become: Scattered clouds at 500 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM041600 16:00Z - 22:00Z
VFR
Wind
260° at 12 kt
Gusts: 22 kt
Visibility
>6SM
Clouds
FEW015
📖 Plain English Explanation:

Winds from the West (260°) at 12 kt. Gusts up to 22 kt are expected. Visibility will be excellent at more than 6SM. Few clouds at 1500 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 00:00Z - 02:00Z
VFR
Wind
260° at 10 kt
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West (260°) at 10 kt. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM050300 03:00Z - 09:00Z
VFR
Wind
290° at 8 kt
Visibility
6SM
Weather
Mist
Clouds
FEW002
📖 Plain English Explanation:

Winds from the West-Northwest (290°) at 8 kt. Visibility will be excellent at 6SM. Weather conditions: Mist. Few clouds at 200 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 03:00Z - 05:00Z
LIFR
Visibility
1/2SM
Weather
Fog, FCST
Clouds
VV002
📖 Plain English Explanation:

Conditions will gradually change to become: Visibility will be moderate at 1/2SM. Weather conditions: Fog, FCST. Vertical visibility at 200 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.