Stony Rapids Airport

CYSF / YSF

Stony Rapids, CA

Current TAF Forecast

Raw TAF:
TAF AMD CYSF 081938Z 0819/0906 09012KT 3SM -SN OVC030 TEMPO 0819/0821 1SM -SN OVC015 FM082100 09010KT 2SM -SN OVC020 TEMPO 0821/0823 6SM -SN OVC030 FM082300 09008KT P6SM -SN OVC030 TEMPO 0823/0905 4SM -SN OVC020 FM090500 VRB03KT P6SM -SN FEW020 OVC040 RMK FCST BASED ON AUTO OBS. NXT FCST BY 090000Z

Detailed TAF Table

Parameter
Sun
22:00Z
+-1h
Sun
23:00Z
+0h
Mon
00:00Z
+1h
Mon
01:00Z
+2h
Mon
02:00Z
+3h
Mon
03:00Z
+4h
Mon
04:00Z
+5h
Wind Dir
90°
E
90°
E
90°
E
90°
E
90°
E
90°
E
90°
E
Wind Speed
12 kt
12 kt
12 kt
12 kt
12 kt
12 kt
12 kt
Visibility
3SM
4SM
4SM
4SM
4SM
4SM
4SM
Weather
Light Snow
-SN
Light Snow
-SN
Light Snow
-SN
Light Snow
-SN
Light Snow
-SN
Light Snow
-SN
Light Snow
-SN
Clouds
OVC030
OVC020
OVC020
OVC020
OVC020
OVC020
OVC020
Ceiling
3,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
2,000 ft
AGL
Flight Rules MVFR MVFR MVFR MVFR MVFR MVFR MVFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
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
MVFR
Wind
90° at 12 kt
Visibility
3SM
Weather
Light Snow
Clouds
OVC030
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East (90°) at 12 kt. Visibility will be good at 3SM. Weather conditions: Light Snow. Overcast skies at 3000 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 19:00Z - 21:00Z
IFR
Visibility
1SM
Weather
Light Snow
Clouds
OVC015
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be moderate at 1SM. Weather conditions: Light Snow. Overcast skies at 1500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM082100 21:00Z - 03:00Z
IFR
Wind
90° at 10 kt
Visibility
2SM
Weather
Light Snow
Clouds
OVC020
📖 Plain English Explanation:

Winds from the East (90°) at 10 kt. Visibility will be moderate at 2SM. Weather conditions: Light Snow. Overcast skies at 2000 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

TEMPO 21:00Z - 23:00Z
VFR
Visibility
6SM
Weather
Light Snow
Clouds
OVC030
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be excellent at 6SM. Weather conditions: Light Snow. Overcast skies at 3000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM082300 23:00Z - 05:00Z
VFR
Wind
90° at 8 kt
Visibility
>6SM
Weather
Light Snow
Clouds
OVC030
📖 Plain English Explanation:

Winds from the East (90°) at 8 kt. Visibility will be excellent at more than 6SM. Weather conditions: Light Snow. Overcast skies at 3000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 23:00Z - 05:00Z
MVFR
Visibility
4SM
Weather
Light Snow
Clouds
OVC020
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 4SM. Weather conditions: Light Snow. Overcast skies at 2000 feet. Marginal VFR conditions - some restrictions for visual flying.

FM090500 05:00Z - 11:00Z
VFR
Wind
VRB° at 3 kt
Visibility
>6SM
Weather
Light Snow, FCST, FCST
Clouds
FEW020 OVC040
📖 Plain English Explanation:

Winds will be variable in direction at 3 kt. Visibility will be excellent at more than 6SM. Weather conditions: Light Snow, FCST, FCST. Few clouds at 2000 feet, Overcast skies at 4000 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.