Austin Straubel International Airport

KGRB / GRB

Green Bay, US

Current TAF Forecast

Raw TAF:
TAF KGRB 042338Z 0500/0524 13004KT P6SM SKC FM050900 04005KT P6SM FEW030 SCT060 TEMPO 0509/0513 5SM BR FM051300 04007KT P6SM SCT030 FM051600 04008G15KT P6SM BKN025 FM051800 06009G15KT P6SM BKN016 FM052200 06006KT P6SM BKN010

Detailed TAF Table

Parameter
Thu
05:00Z
+-1h
Thu
06:00Z
+0h
Thu
07:00Z
+1h
Thu
08:00Z
+2h
Thu
09:00Z
+3h
Thu
10:00Z
+4h
Thu
11:00Z
+5h
Thu
12:00Z
+6h
Thu
13:00Z
+7h
Thu
14:00Z
+8h
Thu
15:00Z
+9h
Thu
16:00Z
+10h
Thu
17:00Z
+11h
Thu
18:00Z
+12h
Thu
19:00Z
+13h
Thu
20:00Z
+14h
Thu
21:00Z
+15h
Thu
22:00Z
+16h
Wind Dir
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
40°
NE
40°
NE
40°
NE
40°
NE
40°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
Wind Speed
4 kt
4 kt
4 kt
4 kt
4 kt
4 kt
4 kt
4 kt
7 kt
7 kt
7 kt
8 kt
G15 kt
8 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
9 kt
G15 kt
6 kt
G15 kt
Visibility
>6SM
>6SM
>6SM
>6SM
5SM
5SM
5SM
5SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Mist
BR
Mist
BR
Mist
BR
Mist
BR
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
CLR
CLR
CLR
CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
SCT030
SCT030
SCT030
BKN025
BKN025
BKN016
BKN016
BKN016
BKN016
BKN010
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
2,500 ft
AGL
2,500 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,600 ft
AGL
1,000 ft
AGL
Flight Rules VFR VFR VFR VFR MVFR MVFR MVFR MVFR VFR VFR VFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR
Day/Night
🌙
Night
🌅 06:25Z
🌅
Dawn
🌅 06:25Z
☀️
Day
🌅 06:25Z
☀️
Day
🌅 06:25Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 17:34Z
☀️
Day
🌇 17:34Z
☀️
Day
🌇 17:34Z
🌇
Dusk
🌇 17:34Z
🌙
Night
🌇 17:34Z
🌙
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
VFR
Wind
130° at 4 kt
Visibility
>6SM
Clouds
CLR
📖 Plain English Explanation:

This is the base forecast condition. Winds from the Southeast (130°) at 4 kt. Visibility will be excellent at more than 6SM. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM050900 09:00Z - 15:00Z
VFR
Wind
40° at 5 kt
Visibility
>6SM
Clouds
FEW030 SCT060
📖 Plain English Explanation:

Winds from the Northeast (40°) at 5 kt. Visibility will be excellent at more than 6SM. Few clouds at 3000 feet, Scattered clouds at 6000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 09:00Z - 13:00Z
MVFR
Visibility
5SM
Weather
Mist
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Visibility will be good at 5SM. Weather conditions: Mist. Marginal VFR conditions - some restrictions for visual flying.

FM051300 13:00Z - 19:00Z
VFR
Wind
40° at 7 kt
Visibility
>6SM
Clouds
SCT030
📖 Plain English Explanation:

Winds from the Northeast (40°) at 7 kt. Visibility will be excellent at more than 6SM. Scattered clouds at 3000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM051600 16:00Z - 22:00Z
MVFR
Wind
40° at 8 kt
Gusts: 15 kt
Visibility
>6SM
Clouds
BKN025
📖 Plain English Explanation:

Winds from the Northeast (40°) at 8 kt. Gusts up to 15 kt are expected. Visibility will be excellent at more than 6SM. Broken clouds at 2500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM051800 18:00Z - 00:00Z
MVFR
Wind
60° at 9 kt
Gusts: 15 kt
Visibility
>6SM
Clouds
BKN016
📖 Plain English Explanation:

Winds from the East-Northeast (60°) at 9 kt. Gusts up to 15 kt are expected. Visibility will be excellent at more than 6SM. Broken clouds at 1600 feet. Marginal VFR conditions - some restrictions for visual flying.

FM052200 22:00Z - 04:00Z
MVFR
Wind
60° at 6 kt
Visibility
>6SM
Clouds
BKN010
📖 Plain English Explanation:

Winds from the East-Northeast (60°) at 6 kt. Visibility will be excellent at more than 6SM. Broken clouds at 1000 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.