Nantucket Memorial Airport (KACK) Aviation Weather, METAR, TAF & ATIS Alerts
Live aviation weather for Nantucket Memorial Airport in Nantucket, MA, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.
Nantucket Memorial Airport (KACK) is a regional airport serving Nantucket, MA at 47 ft. KACK reports its own METAR and publishes a TAF, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 6 runways (06, 12, 15, 24), longest 6,303 ft, are checked against the current wind in the crosswind table below. The official FAA airport diagram is at the bottom of the page. Track KACK in the ATIS Alerts Telegram bot to get a message when a new METAR changes the picture: flight category, wind, or ceiling past your selected minimums.
Wind from the south-southeast (150°) at 12 kt, visibility 10+ statute miles, a few clouds at 3,500 ft, temperature 19°C (66°F), altimeter 30.08 inHg. Conditions are Visual Flight Rules (VFR).
METAR KACK 130653Z AUTO 15012KT 10SM FEW035 19/16 A3008 RMK AO2 SLP185 T01890156
What changed at KACK?
Since the 0553Z (1:53 AM EDT) report, compared automatically against the latest METAR.
- Pressure falling: altimeter 30.10 → 30.08 inHg.
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Current pilot readout for KACK
KACK is currently VFR with winds from 150° at 12 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 06, about 12 knots. Density altitude is approximately 350 ft (field elevation 47 ft). Review the latest TAF below for forecast changes before departure.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
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Runway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
Use this section to quickly compare current wind alignment across available runways at KACK. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 15FAV | 4,500 ft | ASP | 12 kt head | 3 kt right |
| 24 | 6,303 ft | ASP | 3 kt head | 12 kt left |
| 06 | 6,303 ft | ASP | 3 kt tail | 12 kt right |
| 33 | 4,500 ft | ASP | 12 kt tail | 3 kt left |
Open the crosswind calculator to try your own wind and runway numbers →
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 6→12 kt, ceiling unlimited → unlimited.
KACK weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Nantucket Memorial Airport in Nantucket, MA: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around KACK is headed.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap
Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.
Recent aviation weather trends at KACK
From ATIS Alerts' hourly weather history.
Over the past 24 hours, KACK reported mostly VFR across 24 observations, with 0 flight-category changes. The lowest ceiling was 4,100 ft. Wind most often came from the SE.
Most recent change: MVFR → VFR
- 06
- 33%
- 24
- 27%
- 15
- 26%
- 33
- 14%
TAF | Terminal Aerodrome Forecast
Issued 0534Z (1:34 AM EDT)
TAF KACK 130534Z 1306/1406 16009KT P6SM SCT035 BKN150 FM131400 14011KT 4SM SHRA OVC015 TEMPO 1314/1318 1SM TSRA OVC008CB FM131800 16012KT 2SM SHRA BR OVC008 WS020/23035KT FM132100 24008KT 1SM BR OVC004 FM140200 27010KT 2SM BR BKN008
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Airport facts
Reference data from the OurAirports dataset.
- Type
- Regional airport
- ICAO
- KACK
- IATA
- ACK
- FAA LID
- ACK
- City
- Nantucket
- State
- Massachusetts
- Country
- United States
- Elevation
- 47 ft
- Coordinates
- 41.2531, -70.0602
- Runways
- 6
- Longest runway
- 6,303 ft
- Weather reporting
- Reports METAR
- TAF
- Published
- ATIS
- 127.5 MHz
- CTAF
- 118.3 MHz
- Time zone
- America/New_York
- Next sunset
- 15h 42m
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Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
3 airports25–50 NM
8 airports+2 more within 50 NM
50–100 NM
8 airports+2 more within 100 NM
RC flying fields nearby
AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.
- Lambert R/C Flying Association - South Shore Rd , Nantucket, MA · 2 mi
- Martha's Vineyard Model Flying Club - Marth'as Vineyard Regional High School , Oak Bluffs, MA · 30 mi
- Martha's Vineyard Model Flying Club - MF Correllus State Forest , Edgartown, MA · 30 mi
Historical Flying Weather at KACK
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KACK reported VFR conditions during about 70.3% of valid daylight observations, with an estimated 231 VFR flying days a year. November had the most VFR weather; July had the most instrument conditions. Surface winds averaged 10.6 kt, calm 3.3% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 69.4 | 16.7 | 6.8 | 7.1 |
| Feb | 71.7 | 13.6 | 6.8 | 7.9 |
| Mar | 72.1 | 12.4 | 6.3 | 9.3 |
| Apr | 71.8 | 10.7 | 6.0 | 11.6 |
| May | 63.4 | 9.5 | 6.9 | 20.1 |
| Jun | 62.5 | 10.0 | 6.0 | 21.5 |
| Jul | 58.8 | 10.8 | 6.1 | 24.2 |
| Aug | 69.7 | 10.2 | 6.0 | 14.1 |
| Sep | 74.4 | 8.7 | 6.0 | 11.0 |
| Oct | 73.8 | 12.7 | 6.4 | 7.0 |
| Nov | 77.9 | 12.9 | 4.2 | 4.9 |
| Dec | 70.7 | 16.9 | 6.4 | 6.0 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 12.1 kt |
| Feb | 12.1 kt |
| Mar | 12.6 kt |
| Apr | 11.6 kt |
| May | 10.4 kt |
| Jun | 9.2 kt |
| Jul | 8.3 kt |
| Aug | 8.2 kt |
| Sep | 9.3 kt |
| Oct | 10.9 kt |
| Nov | 11.5 kt |
| Dec | 11.6 kt |
Historical summary of past observations: not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
KACK airport diagram
Official FAA taxiway and runway layout. Tap to zoom.
The FAA airport diagram for Nantucket Memorial Airport in Nantucket, MA shows the runway and taxiway layout across 6 runways, ramp areas, and hold-short positions. Review it before taxiing at an unfamiliar field.
Official FAA airport diagram · d-TPP cycle 2610 · Not for navigation. Download the official FAA PDF ↗
KACK weather: frequently asked
What runways are available at KACK?+
KACK has 6 runways: 06, 12, 15, 24, 30, 33; the longest is 6,303 ft. This page computes the live crosswind for each runway end from the current wind.
Does KACK report its own weather?+
Yes. Nantucket Memorial Airport has its own weather station and publishes METAR observations, which this page decodes live.
Does KACK have a TAF?+
Yes. The TAF is shown on this page below the current conditions.
Does KACK broadcast D-ATIS?+
No. KACK does not broadcast D-ATIS. Alerts for KACK from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR instead.
Where can I find the KACK airport diagram?+
The official FAA airport diagram for Nantucket Memorial Airport (KACK) is shown on this page. It maps the runway and taxiway layout, ramps, and hold-short lines. Tap it to zoom, or download the official FAA PDF free from the link under the diagram (updated every 28-day FAA charting cycle).
Pilot PIREPs for Nantucket Memorial Airport (KACK)
Community-submittedCommunity-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.
Read recent community-submitted pilot notes for Nantucket Memorial Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.
⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.
No Pilot PIREPs have been submitted for KACK yet. Recently flew here? Help the next pilot by leaving a quick airport note.
Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.
Why pilots use ATIS Alerts
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⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
No D-ATIS at this airport, showing METAR.
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