Nantucket Memorial Airport

KACK / ACK

Nantucket, US

Current TAF Forecast

Raw TAF:
KACK 152322Z 1600/1624 06008KT P6SM SKC FM160200 06008KT 5SM BR SCT006 FM160400 07008KT 4SM BR BKN006 FM160600 07007KT 1/2SM FG BKN002 FM161100 07010KT P6SM SCT003 FM161500 07012KT P6SM SCT090

Detailed TAF Table

Parameter
Tue
05:00Z
+-1h
Tue
06:00Z
+0h
Tue
07:00Z
+1h
Tue
08:00Z
+2h
Tue
09:00Z
+3h
Tue
10:00Z
+4h
Tue
11:00Z
+5h
Tue
12:00Z
+6h
Tue
13:00Z
+7h
Tue
14:00Z
+8h
Tue
15:00Z
+9h
Tue
16:00Z
+10h
Tue
17:00Z
+11h
Tue
18:00Z
+12h
Tue
19:00Z
+13h
Tue
20:00Z
+14h
Tue
21:00Z
+15h
Tue
22:00Z
+16h
Wind Dir
60°
NE
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
70°
E
60°
NE
60°
NE
Wind Speed
8kt
7kt
7kt
7kt
7kt
7kt
10kt
10kt
10kt
10kt
12kt
12kt
12kt
12kt
12kt
12kt
8kt
8kt
Visibility
>6SM
1/2SM
1/2SM
1/2SM
1/2SM
1/2SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
>6SM
Weather
☀️ Clear
Fog
FG
Fog
FG
Fog
FG
Fog
FG
Fog
FG
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
CLR
BKN002
BKN002
BKN002
BKN002
BKN002
SCT003
SCT003
SCT003
SCT003
SCT090
SCT090
SCT090
SCT090
SCT090
SCT090
CLR
CLR
Ceiling
🌤️ Unlimited
200ft
AGL
200ft
AGL
200ft
AGL
200ft
AGL
200ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules VFR LIFR LIFR LIFR LIFR LIFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
🌙
Night
🌅 05:52
☀️
Day
🌅 05:52
☀️
Day
🌅 05:52
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:07
☀️
Day
🌇 18:07
☀️
Day
🌇 18:07
🌙
Night
🌇 18:07
🌙
Night
🌇 18:07
🌙
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
60° at 8 kt
Visibility
>6SM
Clouds
CLR
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East-Northeast (60°) at 8kt. Visibility will be excellent at more than 6SM. Skies will be clear. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM160200 2025-10-16 02:00:00 - 2025-10-16 08:00:00
MVFR
Wind
60° at 8 kt
Visibility
5SM
Weather
Mist
Clouds
SCT006
📖 Plain English Explanation:

Winds from the East-Northeast (60°) at 8kt. Visibility will be good at 5SM. Weather conditions: Mist. Scattered clouds at 600 feet. Marginal VFR conditions - some restrictions for visual flying.

FM160400 2025-10-16 04:00:00 - 2025-10-16 10:00:00
IFR
Wind
70° at 8 kt
Visibility
4SM
Weather
Mist
Clouds
BKN006
📖 Plain English Explanation:

Winds from the East-Northeast (70°) at 8kt. Visibility will be good at 4SM. Weather conditions: Mist. Broken clouds at 600 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

FM160600 2025-09-16 06:00:00 - 2025-09-16 12:00:00
LIFR
Wind
70° at 7 kt
Visibility
1/2SM
Weather
Fog
Clouds
BKN002
📖 Plain English Explanation:

Winds from the East-Northeast (70°) at 7kt. Visibility will be moderate at 1/2SM. Weather conditions: Fog. Broken clouds at 200 feet. Low IFR conditions - challenging even for instrument operations.

FM161100 2025-09-16 11:00:00 - 2025-09-16 17:00:00
VFR
Wind
70° at 10 kt
Visibility
>6SM
Clouds
SCT003
📖 Plain English Explanation:

Winds from the East-Northeast (70°) at 10kt. Visibility will be excellent at more than 6SM. Scattered clouds at 300 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

FM161500 2025-09-16 15:00:00 - 2025-09-16 21:00:00
VFR
Wind
70° at 12 kt
Visibility
>6SM
Clouds
SCT090
📖 Plain English Explanation:

Winds from the East-Northeast (70°) at 12kt. Visibility will be excellent at more than 6SM. Scattered clouds at 9000 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

📚 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.