Saint John Airport

CYSJ / YSJ

Saint John, CA

Current TAF Forecast

Raw TAF:
TAF CYSJ 160540Z 1606/1618 VRB03KT P6SM SKC TEMPO 1606/1611 4SM BR PROB30 1608/1611 1SM BR FM161100 35005KT P6SM SKC BECMG 1616/1618 18005KT RMK NXT FCST BY 161200Z

Detailed TAF Table

Parameter
Tue
06:00Z
+-1h
Tue
07:00Z
+0h
Tue
08:00Z
+1h
Tue
09:00Z
+2h
Tue
10:00Z
+3h
Tue
11:00Z
+4h
Tue
12:00Z
+5h
Tue
13:00Z
+6h
Tue
14:00Z
+7h
Tue
15:00Z
+8h
Tue
16:00Z
+9h
Wind Dir
VRB
VRB
180°
S
180°
S
180°
S
350°
N
350°
N
350°
N
350°
N
350°
N
180°
S
Wind Speed
3kt
3kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
5kt
Visibility
>6SM
>6SM
1SM
1SM
1SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
Mist
BR
30%
Mist
BR
30%
Mist
BR
30%
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
FCST
FCST
Clouds
CLR
CLR
☀️ CLR
☀️ CLR
☀️ CLR
CLR
CLR
CLR
CLR
CLR
☀️ CLR
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR IFR IFR IFR VFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
🌅 05:51
☀️
Day
🌅 05:51
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:08
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
CLR
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 3kt. Visibility will be excellent at more than 6SM. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 2025-10-16 06:00:00 - 2025-09-16 11:00:00
MVFR
Visibility
4SM
Weather
Mist
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 4SM. Weather conditions: Mist. Marginal VFR conditions - some restrictions for visual flying.

PROB30 2025-09-16 08:00:00 - 2025-09-16 11:00:00
IFR
Visibility
1SM
Weather
Mist
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be moderate at 1SM. Weather conditions: Mist. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM161100 2025-09-16 11:00:00 - 2025-09-16 17:00:00
VFR
Wind
350° at 5 kt
Visibility
>6SM
Clouds
CLR
📖 Plain English Explanation:

Winds from the North (350°) at 5kt. Visibility will be excellent at more than 6SM. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 2025-09-16 16:00:00 - 2025-09-16 18:00:00
VFR
Wind
180° at 5 kt
Weather
FCST
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the South (180°) at 5kt. Weather conditions: FCST. 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.