North Bay Jack Garland Airport

CYYB / YYB

North Bay, CA

Current TAF Forecast

Raw TAF:
TAF CYYB 141940Z 1420/1508 02012G22KT P6SM BKN050 BKN100 BECMG 1421/1423 02005KT FM150300 02005KT P6SM SCT100 RMK NXT FCST BY 150200Z

Detailed TAF Table

Parameter
Thu
23:00Z
+-1h
Fri
00:00Z
+0h
Fri
01:00Z
+1h
Fri
02:00Z
+2h
Fri
03:00Z
+3h
Fri
04:00Z
+4h
Fri
05:00Z
+5h
Fri
06:00Z
+6h
Wind Dir
20°
N
20°
N
20°
N
20°
N
20°
N
20°
N
20°
N
20°
N
Wind Speed
12 kt
G22 kt
12 kt
G22 kt
12 kt
G22 kt
12 kt
G22 kt
5 kt
G22 kt
5 kt
G22 kt
5 kt
G22 kt
5 kt
G22 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
FCST
FCST
FCST
FCST
FCST
FCST
FCST
FCST
Clouds
BKN050
BKN100
BKN050
BKN100
BKN050
BKN100
BKN050
BKN100
SCT100
SCT100
SCT100
SCT100
Ceiling
5,000 ft
AGL
5,000 ft
AGL
5,000 ft
AGL
5,000 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 04:51Z
🌙
Night
🌅 04:51Z
🌙
Night
🌅 04:51Z
☀️
Day
🌅 04:51Z
☀️
Day
🌅 04:51Z
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
20° at 12 kt
Gusts: 22 kt
Visibility
>6SM
Clouds
BKN050 BKN100
📖 Plain English Explanation:

This is the base forecast condition. Winds from the North-Northeast (20°) at 12 kt. Gusts up to 22 kt are expected. Visibility will be excellent at more than 6SM. Broken clouds at 5000 feet, Broken clouds at 10000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 21:00Z - 23:00Z
VFR
Wind
20° at 5 kt
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the North-Northeast (20°) at 5 kt. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM150300 03:00Z - 09:00Z
VFR
Wind
20° at 5 kt
Visibility
>6SM
Weather
FCST
Clouds
SCT100
📖 Plain English Explanation:

Winds from the North-Northeast (20°) at 5 kt. Visibility will be excellent at more than 6SM. Weather conditions: FCST. Scattered clouds at 10000 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.