KACK/ACK METAR & TAF Nantucket Memorial Airport

Nantucket, MassachusettsElevation 47 ftMedium airport

CURRENT STATUS

VFR19 min old

No ceiling, visibility 9 SM.

FLIGHT CATEGORY

VFR

ceiling & visibility

WIND

280@3

steady

VISIBILITY

9 SM

14.5 km

CEILING

None

no BKN/OVC layer

DENSITY ALT

-1,978 ft

-2,025 ft vs field

CURRENT METAR

Decoded observation

Observed 0932Z (5:32 AM local) · 19 min old

KACK is currently VFR. Winds are from the west at 3 knots. Visibility is 9 statute miles. There is no ceiling.

WIND

280° at 3 kt

Steady.

VISIBILITY

9 statute miles

14.5 km, good.

CEILING & SKY

CLR

FEW and SCT layers are not ceilings.

TEMP / DEWPOINT

3°C / 3°C

37°F / 37°F. 0°C spread.

ALTIMETER

30.53 inHg

1033.9 hPa, above standard.

WEATHER & HAZARDS

No significant hazards

No precipitation or obscuration reported.

Codes in this report: AUTO CLR RMK AO2

Hover or tap any group for a plain-English explanation.

REMARKS: DECODED

AO2

automated station with a precipitation discriminator (can tell rain from snow)

T00280028

precise temperature 2.8°C, dew point 2.8°C

station needs maintenance

TERMINAL AERODROME FORECAST

TAF timeline

Issued 0859Z (4:59 AM local) · valid to 0600Z (2:00 AM local)

KACK forecast starts VFR at 09Z. Worst period is 09Z to 12Z with MVFR possible. Best period is 12Z to 16Z (VFR). Overall the forecast improves over the period.

MVFR

VFR

0900Z5:00 AM1312Z9:12 AM1724Z1:24 PM2136Z5:36 PM0148Z9:48 PM0600Z2:00 AM

Codes in this report: P6SM SKC TEMPO BR FEW

Tap any group to decode it.

FAA: no delays reported at ACK.

Source: FAA System Operations (ASWS). Operational status only; verify with official FAA sources and NOTAMs.

SUGGESTED RISK · TRAINING USE

Suggested risk level: Low

›No significant weather concerns in the current report.

A suggested risk level for training and situational awareness only, not a go/no-go authority. Verify with official sources and apply your personal minimums.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

Current aviation conditions show flight category VFR, wind from 280° at 3 kt, visibility 9 SM, ceiling none. Forecast suggests sunday sunny, high near 55F, low near 46F, 0% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

Day	Conditions	Temp F	Wind	Gusts	Precip
Sunday	Sunny	55/46	S 5 kt	–	0%
Monday	Sunny	59/47	W 13 kt	–	0%
Tuesday	Sunny	52/44	N 16 kt	–	0%
Wednesday	Sunny	52/44	NE 5 kt	–	0%
Thursday	Mostly Sunny	60/51	SW 12 kt	–	1%
Friday	Sunny	60/49	W 11 kt	–	1%
Saturday	Mostly Sunny	59	NE 10 kt	–	3%

Source: National Weather Service (office BOX). Forecast issued 0950Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND

2 runways · crosswind ranking

ON-FIELD METAR

READING THE BARB · SWIPE FOR MORE →

Calm

5 kt

10 kt

15 kt

20 kt

25 kt

30 kt

35 kt

40 kt

45 kt

50 kt

65 kt

75 kt

100 kt

105 kt

Half feather = 5 kt, full = 10 kt, filled pennant = 50 kt; add them up. The staff points the direction the wind blows from.

WIND USED

280° at 3 kt

Components computed from the current on-field METAR wind.

RECOMMENDED

RWY 332 kt headwind · 2 kt crosswind

RUNWAYS BY WIND · best end

HEAD

2 kt

CROSS

2 kt L

BEST

HEAD

2 kt

CROSS

2 kt R

HEAD

2 kt tail

CROSS

2 kt L

HEAD

2 kt tail

CROSS

2 kt R

Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.

RUNWAYS

Runway detail & declared distances

2 runways · longest 6,303 ft

06/24

Dimensions

6,303 x 150 ft

Surface

Asphalt (good)

Edge lights

HIGH

RWY 0645°T

Landing length (LDA)5,765 ft

TORA / TODA / ASDA6,303 / 6,303 / 6,303 ft

Displaced threshold538 ft

ILSILS/DME

Approach lightsMALSF

VGSIPAPI (P4R)

Traffic patternLeft

RWY 24225°T

Landing length (LDA)6,303 ft

TORA / TODA / ASDA6,303 / 6,303 / 6,303 ft

ILSILS/DME

Approach lightsSSALR

VGSIPAPI (P4L)

Traffic patternLeft

15/33

Dimensions

4,500 x 100 ft

Surface

Asphalt (good)

Edge lights

MED

RWY 15135°T

Landing length (LDA)4,500 ft

TORA / TODA / ASDA4,500 / 4,500 / 4,500 ft

REILYes

Traffic patternLeft

RWY 33315°T

Landing length (LDA)4,500 ft

TORA / TODA / ASDA4,500 / 4,500 / 4,500 ft

REILYes

VGSIPAPI (P4L)

Traffic patternLeft

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Performance & density altitude

Density altitude

-1,978 ft

Pressure altitude

-563 ft

Field elevation

47 ft MSL

Temperature

3°C (37°F)

Dewpoint

3°C (37°F)

Altimeter

30.53 inHg

Density altitude estimates how the aircraft performs versus standard atmosphere. Higher density altitude reduces climb performance and increases takeoff distance.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset

2146Z 5:46 PM

Sunrise

1103Z 7:03 AM

Loggable night

2214Z (6:14 PM local) → 1034Z (6:34 AM local)

end of evening to start of morning civil twilight

Position lights required

2146Z (5:46 PM local) → 1103Z (7:03 AM local)

sunset to sunrise (91.209)

Night passenger currency

2246Z (6:46 PM local) → 1003Z (6:03 AM local)

1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Nantucket Memorial Airport is in Nantucket, Massachusetts. Field elevation 47 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT

OwnershipPublicly owned

UseOpen to the public

TypeMedium airport

Airline serviceYes

ManagerWARREN SMITH

Manager phone508-325-7531

AttendedContinuous (24 hours)

CHARTS & AIRSPACE

ICAO / IATAKACK / ACK

SectionalNEW YORK

Center (ARTCC)BOSTON

Flight service (AFSS)BRIDGEPORT

RegionMassachusetts

CountryUnited States

Coordinates41.2531, -70.0602

Distance from city3 NM SE

SERVICES & LIGHTING

Fuel100LL · Jet A

Control towerTowered

Field lightingSee remarks

BeaconSunset to sunrise · White-green (lighted land airport)

CTAF118.300

UNICOM122.950

FREQUENCIES

Communications

126.1

CAPE APP/DEP

A/D

127.5

ATIS

119.375

CLNC DEL

CLD

118.3

CTAF

121.7

GND

116.2

BRIDGEPORT RDO

RDO

118.3

TWR

122.95

UNICOM

UNIC

122.950

UNICOM

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

KACK traffic patterns

2026-06-14 to 2026-09-01, 16 days observed · data 2026-10-23

Insufficient confidence

TRAFFIC VOLUME (30-DAY)

AVG LANDINGS/DAY

4.3

AVG OPS/DAY

5.3

Operations trend (4 days)

Busiest day: Wed · Busiest month: Jun

FLEET MIX

Jet 48%Piston single 21%Turboprop 15%Twin 9%Airliner 7%

Mostly jet aircraft.

TOP AIRCRAFT TYPES

›C182 (Piston single) · ~2 landings/mo

›C208 (Turboprop) · ~2 landings/mo

›C56X (Jet) · ~2 landings/mo

›C68A (Jet) · ~2 landings/mo

›PC12 (Turboprop) · ~2 landings/mo

Data limitations (4)

›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.

›Some aircraft do not transmit usable ADS-B and are not counted.

›Aircraft types and based estimates are inferred and may be wrong.

›This is not official ATC, FAA, or airport data.

NEARBY AIRPORTS

Weather reference stations

Current flight category at nearby reporting stations.

KMVY Martha's Vineyard Airport

26 NM W

VFR

KHYA Cape Cod Gateway Airport

27 NM N

VFR

KFMH Cape Cod Coast Guard Air Station

32 NM NW

VFR

KEWB New Bedford Regional Airport

48 NM NW

LIFR

KPYM Plymouth Municipal Airport

50 NM NW

LIFR

KPVC Provincetown Municipal Airport

50 NM N

VFR

AIRPORT REMARKS

Operational remarks

›PCR VALUE: 770/F/A/X/T

›SSALR UNMON WHEN TWR CLSD.

›WHEN ATCT CLSD ACTVT MALSF RWY 06; SSALR RWY 24; HIRL RWY 06/24; MIRL RWY 15/33; TWY LGTS - CTAF. PAPI RWY 06, 24 & 33 OPR 24 HRS.

›ESTAB PRIOR TO 1959.

›FEE FOR NON-COML ACFT PRKG.

›TWY F RSTRD TO SML ACFT 12500 LBS OR LESS.

›BE AWARE OF HIGH-SPD MIL JET & HVY HEL TFC VCNTY AIR STATION CAPE COD.

›FOR CD IF TWR CLSD & UNA TO CTC FSS FREQ, CTC BOSTON APCH AT 603-594-5554.

›ARFF INDEX C SVCS PRVD BTN 0600 AND 2200. FOR INDEX C SVCS BTN 2201 AND 0559, 2 HR PPR AT 508-325-7569 TO NANTUCKET AIRPORT OPS. PPR 2 HRS FOR UNSKED ACFT OPS WITH MORE THAN 9 PAX SEATS; CALL AMGR 508-325-5300.

›DEER & BIRDS ON & INVOF ARPT.

›PCR VALUE: 430/F/A/X/T

›TXL F BTN TWY B & TWY H CLSD TO ACFT WITH WINGSPAN MORE THAN 79FT.

›ARPT HAS NOISE ABATEMENT PROCS CTC NOISE OFFICER 508-325-5300.

OFFICIAL LINKS & SOURCES

↗Official METAR on AviationWeather.gov

↗Search NOTAMs (official FAA NOTAM Search)

↗Wikipedia

↗KACK on OurAirports

FREQUENTLY ASKED

Does KACK have a METAR?

Yes. KACK has a current METAR observation, decoded into plain English on this page.

Does KACK have a TAF?

Yes, a TAF is issued for KACK; the decoded forecast timeline is shown above.

What is the field elevation at KACK?

KACK sits at 47 ft MSL, which factors into the density-altitude estimate on this page.

Is this an official preflight weather briefing for KACK?

No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.

This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.