North Bay Jack Garland Airport

CYYB / YYB

North Bay, CA

Current TAF Forecast

Raw TAF:
TAF CYYB 141940Z 1420/1508 26007KT P6SM OVC040 TEMPO 1420/1423 P6SM -SHRA FM142300 VRB03KT P6SM SCT005 OVC040 TEMPO 1423/1504 P6SM -SHRA SCT006 OVC020 FM150400 31005KT P6SM BKN030 TEMPO 1504/1508 SCT005 OVC015 RMK NXT FCST BY 150200Z

Detailed TAF Table

Parameter
Mon
01:00Z
+-1h
Mon
02:00Z
+0h
Mon
03:00Z
+1h
Mon
04:00Z
+2h
Mon
05:00Z
+3h
Mon
06:00Z
+4h
Wind Dir
260°
W
260°
W
260°
W
260°
W
260°
W
260°
W
Wind Speed
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
FCST
FCST
FCST
FCST
FCST
FCST
Clouds
OVC040
OVC040
OVC040
SCT005
OVC015
SCT005
OVC015
SCT005
OVC015
Ceiling
4,000 ft
AGL
4,000 ft
AGL
4,000 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
1,500 ft
AGL
Flight Rules VFR VFR VFR MVFR MVFR MVFR
Day/Night
🌙
Night
🌙
Night
🌅 04:33Z
🌙
Night
🌅 04:33Z
🌙
Night
🌅 04:33Z
☀️
Day
🌅 04:33Z
☀️
Day
🌅 04:33Z
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
260° at 7 kt
Visibility
>6SM
Clouds
OVC040
📖 Plain English Explanation:

This is the base forecast condition. Winds from the West (260°) at 7 kt. Visibility will be excellent at more than 6SM. Overcast skies at 4000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 20:00Z - 23:00Z
VFR
Visibility
>6SM
Weather
Light Showers Rain
📖 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. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM142300 23:00Z - 05:00Z
VFR
Wind
VRB° at 3 kt
Visibility
>6SM
Clouds
SCT005 OVC040
📖 Plain English Explanation:

Winds will be variable in direction at 3 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 500 feet, Overcast skies at 4000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 23:00Z - 04:00Z
MVFR
Visibility
>6SM
Weather
Light Showers Rain
Clouds
SCT006 OVC020
📖 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. Scattered clouds at 600 feet, Overcast skies at 2000 feet. Marginal VFR conditions - some restrictions for visual flying.

FM150400 04:00Z - 10:00Z
VFR
Wind
310° at 5 kt
Visibility
>6SM
Clouds
BKN030
📖 Plain English Explanation:

Winds from the Northwest (310°) at 5 kt. Visibility will be excellent at more than 6SM. Broken clouds at 3000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 04:00Z - 08:00Z
MVFR
Weather
FCST
Clouds
SCT005 OVC015
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Weather conditions: FCST. Scattered clouds at 500 feet, Overcast skies at 1500 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.