Moose Jaw Air Vice Marshal C. M. McEwen Airport

CYMJ / YMJ

Moose Jaw, CA

Current TAF Forecast

Raw TAF:
TAF AMD CYMJ 041918Z 0419/0506 09012KT P6SM OVC015 TEMPO 0419/0504 3SM -SN BR OVC008 BECMG 0421/0423 11015KT FM050400 11015KT 4SM -SNPL BR OVC012 RMK NXT FCST BY 050000Z

Detailed TAF Table

Parameter
Wed
22:00Z
+-1h
Wed
23:00Z
+0h
Thu
00:00Z
+1h
Thu
01:00Z
+2h
Thu
02:00Z
+3h
Thu
03:00Z
+4h
Thu
04:00Z
+5h
Wind Dir
90°
E
110°
E
110°
E
110°
E
110°
E
110°
E
110°
E
Wind Speed
12 kt
15 kt
15 kt
15 kt
15 kt
15 kt
15 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
OVC015
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
Ceiling
1,500 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules MVFR VFR VFR VFR VFR VFR VFR
Day/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
MVFR
Wind
90° at 12 kt
Visibility
>6SM
Clouds
OVC015
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East (90°) at 12 kt. Visibility will be excellent at more than 6SM. Overcast skies at 1500 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 19:00Z - 04:00Z
IFR
Visibility
3SM
Weather
Light Snow, Mist
Clouds
OVC008
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 3SM. Weather conditions: Light Snow, Mist. Overcast skies at 800 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

BECMG 21:00Z - 23:00Z
VFR
Wind
110° at 15 kt
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the East-Southeast (110°) at 15 kt. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM050400 04:00Z - 10:00Z
IFR
Wind
110° at 15 kt
Visibility
4SM
Weather
Light SNPL, Mist, FCST
Clouds
OVC012
📖 Plain English Explanation:

Winds from the East-Southeast (110°) at 15 kt. Visibility will be good at 4SM. Weather conditions: Light SNPL, Mist, FCST. Overcast skies at 1200 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

📚 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.