North Bay Jack Garland Airport

CYYB / YYB

North Bay, CA

Current TAF Forecast

Raw TAF:
TAF AMD CYYB 141002Z 1410/1420 VRB03KT P6SM SCT004 OVC012 TEMPO 1410/1414 3SM -SN BR OVC004 FM141400 33005KT 5SM -SN BR BKN009 OVC025 TEMPO 1414/1420 P6SM NSW SCT009 OVC025 RMK FCST BASED ON AUTO OBS. NXT FCST BY 141400Z

Detailed TAF Table

Parameter
Sat
10:00Z
+-1h
Sat
11:00Z
+0h
Sat
12:00Z
+1h
Sat
13:00Z
+2h
Sat
14:00Z
+3h
Sat
15:00Z
+4h
Sat
16:00Z
+5h
Sat
17:00Z
+6h
Sat
18:00Z
+7h
Wind Dir
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
VRB
Wind Speed
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
FCST, FCST
FCST FCST
FCST, FCST
FCST FCST
FCST, FCST
FCST FCST
FCST, FCST
FCST FCST
FCST, FCST
FCST FCST
Clouds
SCT004
OVC012
SCT004
OVC012
SCT004
OVC012
SCT004
OVC012
SCT009
OVC025
SCT009
OVC025
SCT009
OVC025
SCT009
OVC025
SCT009
OVC025
Ceiling
1,200 ft
AGL
1,200 ft
AGL
1,200 ft
AGL
1,200 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
Flight Rules MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:08Z
☀️
Day
🌇 17:08Z
☀️
Day
🌇 17:08Z
🌙
Night
🌇 17:08Z
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 occurrence • AGL: Above Ground Level

Forecast Periods

BASE
MVFR
Wind
VRB° at 3 kt
Visibility
>6SM
Clouds
SCT004 OVC012
📖 Plain English Explanation:

This is the base forecast condition. Winds will be variable in direction at 3 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 400 feet, Overcast skies at 1200 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 10:00Z - 14:00Z
LIFR
Visibility
3SM
Weather
Light Snow, Mist
Clouds
OVC004
📖 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 400 feet. Low IFR conditions - challenging even for instrument operations.

FM141400 14:00Z - 20:00Z
IFR
Wind
330° at 5 kt
Visibility
5SM
Weather
Light Snow, Mist
Clouds
BKN009 OVC025
📖 Plain English Explanation:

Winds from the North-Northwest (330°) at 5 kt. Visibility will be good at 5SM. Weather conditions: Light Snow, Mist. Broken clouds at 900 feet, Overcast skies at 2500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

TEMPO 14:00Z - 20:00Z
MVFR
Visibility
>6SM
Weather
FCST, FCST
Clouds
SCT009 OVC025
📖 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: FCST, FCST. Scattered clouds at 900 feet, Overcast skies at 2500 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.