Saint John Airport

CYSJ / YSJ

Saint John, CA

Current TAF Forecast

Raw TAF:
TAF CYSJ 142341Z 1500/1512 11010G20KT P6SM SCT060 OVC080 FM150400 05008KT P6SM SCT015 BKN040 TEMPO 1504/1512 P6SM -SHRA BKN015 OVC040 RMK NXT FCST BY 150600Z

Detailed TAF Table

Parameter
Fri
03:00Z
+-1h
Fri
04:00Z
+0h
Fri
05:00Z
+1h
Fri
06:00Z
+2h
Fri
07:00Z
+3h
Fri
08:00Z
+4h
Fri
09:00Z
+5h
Fri
10:00Z
+6h
Wind Dir
110°
E
110°
E
110°
E
110°
E
110°
E
110°
E
110°
E
110°
E
Wind Speed
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
10 kt
G20 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
Light Showers Rain, FCST
-SHRA FCST
Light Showers Rain, FCST
-SHRA FCST
Light Showers Rain, FCST
-SHRA FCST
Light Showers Rain, FCST
-SHRA FCST
Light Showers Rain, FCST
-SHRA FCST
Light Showers Rain, FCST
-SHRA FCST
Light Showers Rain, FCST
-SHRA FCST
Clouds
SCT060
OVC080
BKN015
OVC040
BKN015
OVC040
BKN015
OVC040
BKN015
OVC040
BKN015
OVC040
BKN015
OVC040
BKN015
OVC040
Ceiling
8,000 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
Flight Rules VFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR
Day/Night
🌙
Night
🌅 04:52Z
🌙
Night
🌅 04:52Z
☀️
Day
🌅 04:52Z
☀️
Day
🌅 04:52Z
☀️
Day
☀️
Day
☀️
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
VFR
Wind
110° at 10 kt
Gusts: 20 kt
Visibility
>6SM
Clouds
SCT060 OVC080
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East-Southeast (110°) at 10 kt. Gusts up to 20 kt are expected. Visibility will be excellent at more than 6SM. Scattered clouds at 6000 feet, Overcast skies at 8000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM150400 04:00Z - 10:00Z
VFR
Wind
50° at 8 kt
Visibility
>6SM
Clouds
SCT015 BKN040
📖 Plain English Explanation:

Winds from the Northeast (50°) at 8 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 1500 feet, Broken clouds at 4000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 04:00Z - 12:00Z
MVFR
Visibility
>6SM
Weather
Light Showers Rain, FCST
Clouds
BKN015 OVC040
📖 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, FCST. Broken clouds at 1500 feet, Overcast skies at 4000 feet. Marginal VFR conditions - some restrictions for visual flying.

📚 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.