Nantucket Memorial Airport

KACK / ACK

Nantucket, US

Current TAF Forecast

Raw TAF:
TAF KACK 052320Z 0600/0624 12007KT P6SM BKN100 PROB30 0603/0607 6SM -SHRA BKN035 OVC080 FM060700 13007KT 5SM -SHRA BR OVC035 FM061600 11012G17KT 3SM SHRA BR BKN025 OVC060

Detailed TAF Table

Parameter
Mon
04:00Z
+-1h
Mon
05:00Z
+0h
Mon
06:00Z
+1h
Mon
07:00Z
+2h
Mon
08:00Z
+3h
Mon
09:00Z
+4h
Mon
10:00Z
+5h
Mon
11:00Z
+6h
Mon
12:00Z
+7h
Mon
13:00Z
+8h
Mon
14:00Z
+9h
Mon
15:00Z
+10h
Mon
16:00Z
+11h
Mon
17:00Z
+12h
Mon
18:00Z
+13h
Mon
19:00Z
+14h
Mon
20:00Z
+15h
Mon
21:00Z
+16h
Mon
22:00Z
+17h
Wind Dir
120°
SE
120°
SE
120°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
130°
SE
120°
SE
120°
SE
120°
SE
110°
E
110°
E
110°
E
110°
E
110°
E
110°
E
120°
SE
Wind Speed
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
7 kt
12 kt
G17 kt
12 kt
G17 kt
12 kt
G17 kt
12 kt
G17 kt
12 kt
G17 kt
12 kt
G17 kt
7 kt
Visibility
>6SM
>6SM
>6SM
5SM
5SM
5SM
5SM
5SM
5SM
>6SM
>6SM
>6SM
3SM
3SM
3SM
3SM
3SM
3SM
>6SM
Weather
☀️ Clear
☀️ Clear
☀️ Clear
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
Light Showers Rain, Mist
-SHRA BR
☀️ Clear
☀️ Clear
☀️ Clear
Showers Rain, Mist
SHRA BR
Showers Rain, Mist
SHRA BR
Showers Rain, Mist
SHRA BR
Showers Rain, Mist
SHRA BR
Showers Rain, Mist
SHRA BR
Showers Rain, Mist
SHRA BR
☀️ Clear
Clouds
BKN100
BKN100
BKN100
OVC035
OVC035
OVC035
OVC035
OVC035
OVC035
BKN100
BKN100
BKN100
BKN025
OVC060
BKN025
OVC060
BKN025
OVC060
BKN025
OVC060
BKN025
OVC060
BKN025
OVC060
BKN100
Ceiling
10,000 ft
AGL
10,000 ft
AGL
10,000 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
10,000 ft
AGL
10,000 ft
AGL
10,000 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
2,500 ft
AGL
10,000 ft
AGL
Flight Rules VFR VFR VFR MVFR MVFR MVFR MVFR MVFR MVFR VFR VFR VFR MVFR MVFR MVFR MVFR MVFR MVFR VFR
Day/Night
🌙
Night
🌅 04:43Z
☀️
Day
🌅 04:43Z
☀️
Day
🌅 04:43Z
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 19:16Z
☀️
Day
🌇 19:16Z
☀️
Day
🌇 19:16Z
🌙
Night
🌇 19:16Z
🌙
Night
🌇 19:16Z
🌙
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 occurrence • AGL: Above Ground Level

Forecast Periods

BASE
VFR
Wind
120° at 7 kt
Visibility
>6SM
Clouds
BKN100
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East-Southeast (120°) at 7 kt. Visibility will be excellent at more than 6SM. Broken clouds at 10000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

PROB30 03:00Z - 07:00Z
VFR
Visibility
6SM
Weather
Light Showers Rain
Clouds
BKN035 OVC080
📖 Plain English Explanation:

There is a 30% probability of: Visibility will be excellent at 6SM. Weather conditions: Light Showers Rain. Broken clouds at 3500 feet, Overcast skies at 8000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM060700 07:00Z - 13:00Z
MVFR
Wind
130° at 7 kt
Visibility
5SM
Weather
Light Showers Rain, Mist
Clouds
OVC035
📖 Plain English Explanation:

Winds from the Southeast (130°) at 7 kt. Visibility will be good at 5SM. Weather conditions: Light Showers Rain, Mist. Overcast skies at 3500 feet. Marginal VFR conditions - some restrictions for visual flying.

FM061600 16:00Z - 22:00Z
MVFR
Wind
110° at 12 kt
Gusts: 17 kt
Visibility
3SM
Weather
Showers Rain, Mist
Clouds
BKN025 OVC060
📖 Plain English Explanation:

Winds from the East-Southeast (110°) at 12 kt. Gusts up to 17 kt are expected. Visibility will be good at 3SM. Weather conditions: Showers Rain, Mist. Broken clouds at 2500 feet, Overcast skies at 6000 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.