Austin Straubel International Airport

KGRB / GRB

Green Bay, US

Current TAF Forecast

Raw TAF:
TAF KGRB 050520Z 0506/0606 VRB03KT P6SM SCT018 BKN035 TEMPO 0506/0510 BKN018 FM051300 04007KT P6SM BKN030 FM051800 06009KT P6SM BKN025 FM052100 06007KT 6SM BR OVC014 FM060100 06005KT 5SM BR BKN007

Detailed TAF Table

Parameter
Thu
06:00Z
+-1h
Thu
07:00Z
+0h
Thu
08:00Z
+1h
Thu
09:00Z
+2h
Thu
10:00Z
+3h
Thu
11:00Z
+4h
Thu
12:00Z
+5h
Thu
13:00Z
+6h
Thu
14:00Z
+7h
Thu
15:00Z
+8h
Thu
16:00Z
+9h
Thu
17:00Z
+10h
Thu
18:00Z
+11h
Thu
19:00Z
+12h
Thu
20:00Z
+13h
Thu
21:00Z
+14h
Thu
22:00Z
+15h
Thu
23:00Z
+16h
Fri
00:00Z
+17h
Fri
01:00Z
+18h
Fri
02:00Z
+19h
Fri
03:00Z
+20h
Fri
04:00Z
+21h
Wind Dir
VRB
VRB
VRB
VRB
VRB
VRB
VRB
40°
NE
40°
NE
40°
NE
40°
NE
40°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
Wind Speed
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
3 kt
7 kt
7 kt
7 kt
7 kt
7 kt
9 kt
9 kt
9 kt
7 kt
7 kt
7 kt
7 kt
5 kt
5 kt
5 kt
5 kt
Visibility
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
6SM
6SM
6SM
6SM
5SM
5SM
5SM
5SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Mist
BR
Clouds
SCT018
BKN035
SCT018
BKN035
SCT018
BKN035
SCT018
BKN035
SCT018
BKN035
SCT018
BKN035
SCT018
BKN035
BKN030
BKN030
BKN030
BKN030
BKN030
BKN025
BKN025
BKN025
OVC014
OVC014
OVC014
OVC014
BKN007
BKN007
BKN007
BKN007
Ceiling
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,500 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
3,000 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
1,400 ft
AGL
1,400 ft
AGL
1,400 ft
AGL
1,400 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
700 ft
AGL
Flight Rules VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR MVFR MVFR MVFR IFR IFR IFR IFR IFR IFR IFR IFR
Day/Night
🌅
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
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 06:24Z
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
VRB° at 3 kt
Visibility
>6SM
Clouds
SCT018 BKN035
📖 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 1800 feet, Broken clouds at 3500 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

TEMPO 06:00Z - 10:00Z
MVFR
Clouds
BKN018
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Broken clouds at 1800 feet. Marginal VFR conditions - some restrictions for visual flying.

FM051300 13:00Z - 19:00Z
VFR
Wind
40° at 7 kt
Visibility
>6SM
Clouds
BKN030
📖 Plain English Explanation:

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

FM051800 18:00Z - 00:00Z
MVFR
Wind
60° at 9 kt
Visibility
>6SM
Clouds
BKN025
📖 Plain English Explanation:

Winds from the East-Northeast (60°) at 9 kt. Visibility will be excellent at more than 6SM. Broken clouds at 2500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM052100 21:00Z - 03:00Z
IFR
Wind
60° at 7 kt
Visibility
6SM
Weather
Mist
Clouds
OVC014
📖 Plain English Explanation:

Winds from the East-Northeast (60°) at 7 kt. Visibility will be excellent at 6SM. Weather conditions: Mist. Overcast skies at 1400 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM060100 01:00Z - 07:00Z
IFR
Wind
60° at 5 kt
Visibility
5SM
Weather
Mist
Clouds
BKN007
📖 Plain English Explanation:

Winds from the East-Northeast (60°) at 5 kt. Visibility will be good at 5SM. Weather conditions: Mist. Broken clouds at 700 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

📚 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.