Saint John Airport

CYSJ / YSJ

Saint John, CA

Current TAF Forecast

Raw TAF:
TAF CYSJ 041140Z 0412/0424 26005KT P6SM FEW200 BECMG 0412/0414 28012G22KT FM041700 28012G22KT P6SM BKN060 TEMPO 0417/0420 P6SM -SHRA PROB30 0417/0420 VRB15G25KT 2SM TSRA BR BKN020 BKN060CB FM042000 30012G22KT P6SM SCT060 RMK NXT FCST BY 041800Z

Detailed TAF Table

Parameter
Sat
13:00Z
+-1h
Sat
14:00Z
+0h
Sat
15:00Z
+1h
Sat
16:00Z
+2h
Sat
17:00Z
+3h
Sat
18:00Z
+4h
Sat
19:00Z
+5h
Sat
20:00Z
+6h
Sat
21:00Z
+7h
Sat
22:00Z
+8h
Wind Dir
260°
W
280°
W
280°
W
280°
W
VRB
VRB
VRB
280°
W
280°
W
280°
W
Wind Speed
5 kt
12 kt
G22 kt
12 kt
G22 kt
12 kt
G22 kt
15 kt
G25 kt
15 kt
G25 kt
15 kt
G25 kt
12 kt
G22 kt
12 kt
G22 kt
12 kt
G22 kt
Visibility
>6SM
>6SM
>6SM
>6SM
2SM
2SM
2SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Thunderstorm Rain, Mist
TSRA BR
30%
Thunderstorm Rain, Mist
TSRA BR
30%
Thunderstorm Rain, Mist
TSRA BR
30%
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
FEW200
☀️ CLR
☀️ CLR
☀️ CLR
BKN020
BKN060CB
BKN020
BKN060CB
BKN020
BKN060CB
☀️ CLR
☀️ CLR
☀️ CLR
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
2,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR IFR IFR IFR VFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 19:23Z
☀️
Day
🌇 19:23Z
☀️
Day
🌇 19:23Z
🌙
Night
🌇 19:23Z
🌙
Night
🌇 19:23Z
🌙
Night
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
260° at 5 kt
Visibility
>6SM
Clouds
FEW200
📖 Plain English Explanation:

This is the base forecast condition. Winds from the West (260°) at 5 kt. Visibility will be excellent at more than 6SM. Few clouds at 20000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 12:00Z - 14:00Z
VFR
Wind
280° at 12 kt
Gusts: 22 kt
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the West (280°) at 12 kt. Gusts up to 22 kt are expected. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM041700 17:00Z - 23:00Z
VFR
Wind
280° at 12 kt
Gusts: 22 kt
Visibility
>6SM
Clouds
BKN060
📖 Plain English Explanation:

Winds from the West (280°) at 12 kt. Gusts up to 22 kt are expected. Visibility will be excellent at more than 6SM. Broken clouds at 6000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 17:00Z - 20:00Z
VFR
Visibility
>6SM
Weather
Light Showers Rain
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be excellent at more than 6SM. Weather conditions: Light Showers Rain. Conditions will be suitable for Visual Flight Rules (VFR) operations.

PROB30 17:00Z - 20:00Z
IFR
Wind
VRB° at 15 kt
Gusts: 25 kt
Visibility
2SM
Weather
Thunderstorm Rain, Mist
Clouds
BKN020 BKN060CB
📖 Plain English Explanation:

There is a 30% probability of: Winds will be variable in direction at 15 kt. Gusts up to 25 kt are expected. Visibility will be moderate at 2SM. Weather conditions: Thunderstorm Rain, Mist. Broken clouds at 2000 feet, Broken clouds at 6000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM042000 20:00Z - 02:00Z
VFR
Wind
300° at 12 kt
Gusts: 22 kt
Visibility
>6SM
Weather
FCST
Clouds
SCT060
📖 Plain English Explanation:

Winds from the West-Northwest (300°) at 12 kt. Gusts up to 22 kt are expected. Visibility will be excellent at more than 6SM. Weather conditions: FCST. Scattered 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.