Long Island MacArthur Airport (KISP) Aviation Weather, METAR, TAF & ATIS Alerts

Live aviation weather for Long Island MacArthur Airport in Islip, NY, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.

Long Island MacArthur Airport (KISP) is a regional airport serving Islip, NY at 99 ft. KISP reports its own METAR and publishes a TAF — decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 8 runways (06, 10, 15L, 15R) — longest 7,006 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 KISP 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.

VFR

Observed 0156Z (9:56 PM EDT)live · refreshes every 60s

Wind

160° 13 kt

gusting 20 kt

Visibility

10+ sm

Ceiling

12,000 ft

Altimeter

29.65"

Temp / Dew

23°C / 74°F

dew 21°C

Wind from the south-southeast (160°) at 13 kt, gusting 20 kt, visibility 10+ statute miles, a few clouds at 1,500 ft, scattered clouds at 6,000 ft, broken clouds at 12,000 ft, overcast at 15,000 ft, temperature 23°C (74°F), altimeter 29.65 inHg. Conditions are Visual Flight Rules (VFR), ceiling 12,000 ft.

Raw METAR

METAR KISP 290156Z 16013G20KT 10SM FEW015 SCT060 BKN120 OVC150 23/21 A2965 RMK AO2 RAE41 SLP040 P0000 T02330211

What changed at KISP?

Since the 0056Z (8:56 PM EDT) report — compared automatically against the latest METAR.

Gusts began — now gusting 20 kt.
Rain ended (-RA).

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Current pilot readout for KISP

KISP is currently VFR with winds from 160° at 13 knots gusting 20, visibility 10+ statute miles, and a 12,000 ft ceiling. The strongest crosswind component is currently on runway 06, about 12 knots. Density altitude is approximately 1,450 ft (field elevation 99 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 KISP. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

Runway	Length	Surface	Head / Tail	Crosswind
15LFAV	3,175 ft	ASP	12 kt head	5 kt right (g8)
15R	5,186 ft	ASP	12 kt head	5 kt right (g8)
24	7,006 ft	ASP	5 kt head	12 kt left (g18)
06	7,006 ft	ASP	5 kt tail	12 kt right (g18)
33L	5,186 ft	ASP	12 kt tail	5 kt left (g8)
33R	3,175 ft	ASP	12 kt tail	5 kt left (g8)

Open the crosswind calculator — try your own wind and runway numbers →

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip — flight category:VFRMVFRIFRLIFRNo report

Over the last 23 h: wind 7→13 kt, ceiling 12,000 ft → 12,000 ft.

KISP weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.

Live weather radar around Long Island MacArthur Airport in Islip, NY: 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 KISP is headed.

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Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO

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.

Pilot reports (PIREPs) within 100 NM of KISP

Reported by pilots in flight over the past 6 hours — via aviationweather.gov.

PIREP0158Z (9:58 PM EDT) · 30 NM W of KISP · during climb · B738

light chop turbulence

Show raw report

LGA UA /OV KLGA090005/TM 0158/FL050/TP B738/WX -RA/TB LGT CHOP/RM DURC

LGA UAHeader — reporting station and UA: a routine pilot report.

OV KLGA090005Location — fix or navaid, optionally with a radial and distance in NM.

TM 0158Reported at 01:58 UTC.

FL050Altitude: 5,000 ft MSL.

TP B738Aircraft type reporting.

WX -RAWeather and flight visibility observed.

TB LGT CHOPTurbulence: light chop.

RM DURCRemarks.

PIREP0139Z (9:39 PM EDT) · 41 NM N of KISP · 30,000 ft MSL · UAL2834

Show raw report

ARP UAL2834 4128N 07318W 0139 F300 189/038KT TB OCNL LGT CHOP IC

ARP UAL2834 4128N 07318W 013…Header — reporting station and UA: a routine pilot report.

PIREP0108Z (9:08 PM EDT) · 43 NM W of KISP · 19,000 ft MSL · C25B

light rime icing

Show raw report

TEB UA /OV TEB180005/TM 0108/FL190/TP C25B/TA M10/IC LGT RIME

TEB UAHeader — reporting station and UA: a routine pilot report.

OV TEB180005Location — fix or navaid, optionally with a radial and distance in NM.

TM 0108Reported at 01:08 UTC.

FL190Altitude: 19,000 ft MSL.

TP C25BAircraft type reporting.

TA M10Outside air temperature, °C.

IC LGT RIMEIcing: light rime.

PIREP0024Z (8:24 PM EDT) · 32 NM NW of KISP · during descent · CL35

Show raw report

HPN UA /OV RWY 16/TM 0024/FLDURD/TP CL35/SK BASES AT 1000

HPN UAHeader — reporting station and UA: a routine pilot report.

OV RWY 16Location — fix or navaid, optionally with a radial and distance in NM.

TM 0024Reported at 00:24 UTC.

FLDURDReported during descent.

TP CL35Aircraft type reporting.

SK BASES AT 1000Sky condition — cloud bases and tops in hundreds of feet MSL.

PIREP0024Z (8:24 PM EDT) · 32 NM W of KISP · 1,600 ft MSL · A321

Show raw report

JFK UA /OV JFK /TM 0024/FL016/TP A321/SK SCT016/RM INBOUND RWY 22L, BASES REPORTED AT 016

JFK UAHeader — reporting station and UA: a routine pilot report.

OV JFKLocation — fix or navaid, optionally with a radial and distance in NM.

TM 0024Reported at 00:24 UTC.

FL016Altitude: 1,600 ft MSL.

TP A321Aircraft type reporting.

SK SCT016Sky condition — cloud bases and tops in hundreds of feet MSL.

RM INBOUND RWY 22L, BASES RE…Remarks.

PIREP0009Z (8:09 PM EDT) · 44 NM W of KISP · 3,000 ft MSL · B79M

moderate turbulence

Show raw report

EWR UA /OV EWR090005/TM 0009/FL030/TP B79M/TB MOD

EWR UAHeader — reporting station and UA: a routine pilot report.

OV EWR090005Location — fix or navaid, optionally with a radial and distance in NM.

TM 0009Reported at 00:09 UTC.

FL030Altitude: 3,000 ft MSL.

TP B79MAircraft type reporting.

TB MODTurbulence: moderate.

PIREP2353Z (7:53 PM EDT) · 71 NM N of KISP · 19,000 ft MSL · P46T

occasional light chop turbulence

Show raw report

BAF UA /OV BAF164019/TM 2353/FL190/TP P46T/TB OCNL LGT CHOP

BAF UAHeader — reporting station and UA: a routine pilot report.

OV BAF164019Location — fix or navaid, optionally with a radial and distance in NM.

TM 2353Reported at 23:53 UTC.

FL190Altitude: 19,000 ft MSL.

TP P46TAircraft type reporting.

TB OCNL LGT CHOPTurbulence: occasional light chop.

PIREP2350Z (7:50 PM EDT) · 0 NM E of KISP · during descent · C65X

Show raw report

ISP UA /OV APP OF RY 24/TM 2350/FL020/TP C65X/SK OVC040/RM WS+10 -5 KNOTS DURD

ISP UAHeader — reporting station and UA: a routine pilot report.

OV APP OF RY 24Location — fix or navaid, optionally with a radial and distance in NM.

TM 2350Reported at 23:50 UTC.

FL020Altitude: 2,000 ft MSL.

TP C65XAircraft type reporting.

SK OVC040Sky condition — cloud bases and tops in hundreds of feet MSL.

RM WS+10 -5 KNOTS DURDRemarks.

⚠️ PIREPs are unverified pilot reports. Not for operational use — conditions change between reports.

Recent aviation weather trends at KISP

From ATIS Alerts' hourly weather history.

Over the past 24 hours, KISP reported a mix of conditions, most often marginal VFR across 33 observations, with 11 flight-category changes. The strongest gust reached 26 kt, the lowest ceiling was 600 ft. Wind most often came from the S.

Last 24 hours

VFR 33%MVFR 45%IFR 21%

Wind avg/max: 10/17 kt

Max gust: 26 kt

Lowest ceiling: 600 ft

Lowest vis: —

Prevailing wind: S

Category changes: 11

Most recent change: MVFR → VFR

Last 7 days

VFR 86%MVFR 11%IFR 3%

Wind avg/max: 7/17 kt

Max gust: 25 kt

Lowest ceiling: 700 ft

Lowest vis: 10 sm

Prevailing wind: SW

Category changes: 11

Most recent change: MVFR → VFR

Active Runway - past 30 days

24: 45%
06: 20%
33L/33R: 20%
15L/15R: 15%

TAF — Terminal Aerodrome Forecast

Issued 2339Z (7:39 PM EDT)

TAF KISP 282339Z 2900/2924 16011G22KT P6SM VCSH SCT015 BKN150 PROB30 2900/2904 3SM -SHRA BR BKN010 FM290400 16010G18KT 3SM -SHRA BR SCT009 BKN015 TEMPO 2904/2908 1SM TSRA BR BKN015CB FM291000 18010KT P6SM VCSH SCT008 BKN012 FM291400 18007KT P6SM VCSH BKN015 FM291800 VRB05KT P6SM VCSH BKN020 PROB30 2918/2922 3SM -SHRA BR

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Airport facts

Reference data from the OurAirports dataset.

Type: Regional airport
ICAO: KISP
IATA: ISP
FAA LID: ISP
City: Islip
State: New York
Country: United States
Elevation: 99 ft
Coordinates: 40.7963, -73.1017
Runways: 8
Longest runway: 7,006 ft
Weather reporting: Reports METAR
TAF: Published
ATIS: 120.725 MHz
CTAF: 119.3 MHz
Time zone: America/New_York
Next sunset: 22h 7m

Run a flight school, FBO, or club here? Embed KISP's live status on your website — free →

Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

VFRMVFRIFRLIFRNo report

Within 25 NM

8 airports

KHWVBrookhaven Calabro AirportShirley, NY11 nm EVFR METAR KFRGRepublic AirportEast Farmingdale, NY15 nm WVFR METAR KFOKFrancis S Gabreski AirportWesthampton Beach, NY22 nm EVFR METAR KBDRIgor I Sikorsky Memorial AirportBridgeport, CT22 nm NVFR METAR · TAF 23NBayport AerodromeBayport, NY3 nm SE K3C8Calverton Executive AirparkCalverton, NY16 nm NE

+2 more within 25 NM

25–50 NM

8 airports

KHVNTweed New Haven AirportNew Haven, CT30 nm NVFR METAR KHPNWestchester County AirportWhite Plains, NY32 nm NWMVFR METAR · TAF KJFKJohn F. Kennedy International AirportNew York, NY32 nm WVFR METAR · TAF KLGALaGuardia AirportNew York, NY35 nm WMVFR METAR · TAF KDXRDanbury Municipal AirportDanbury, CT39 nm NWMVFR METAR KHTOTown of East Hampton AirportEast Hampton, NY40 nm EMETAR

+2 more within 50 NM

50–100 NM

8 airports

KLDJLinden AirportLinden, NJ53 nm WMVFR METAR KCDWEssex County AirportCaldwell, NJ54 nm WMVFR METAR KMTPMontauk AirportMontauk, NY56 nm EMETAR KGONGroton New London AirportGroton, CT58 nm NEVFR METAR · TAF KBLMMonmouth Executive AirportBelmar/Farmingdale, NJ59 nm SWMETAR KMMUMorristown Municipal AirportMorristown, NJ60 nm WIFR METAR

+2 more within 100 NM

RC flying fields nearby

AMA model-aircraft club fields around this airport — live wind, crosswind & flyability on each page.

Long Island Aero Radio Society - Henrietta Acampora — Blue Point, NY · 4 mi
Suffolk Aero Modelers - Hecksher Park — Great River, NY · 7 mi
Long Island Aero Radio Society - iMiller Ave — Bellport, NY · 9 mi

All RC flying fields →

See all New York airports →

Historical Flying Weather

2006–2025 · ATIS Alerts Flying Weather Index

Based on historical observations from 2006–2025, KISP reported VFR conditions during about 76.9% of valid daylight observations, with an estimated 264 VFR flying days a year. November had the most VFR weather; May had the most instrument conditions. Surface winds averaged 8.0 kt, calm 10.3% of the time.

VFR Score

Wind Score

Reliability Score

National VFR rank

#972 of 1,400

Regional rank

#94

State rank

#14

Full historical breakdown

Daylight VFR

76.9%

MVFR

9.7%

IFR

7.4%

LIFR

5.5%

Est. VFR days/yr

264

Most VFR month

November

Fewest VFR month

May

Median ceiling

5,500 ft

Median visibility

10 sm

Calm wind

10.3%

Median wind

8 kt

Gusty hours

17.9%

Crosswind >15 kt

0.1%

Fog/mist days/yr

147

Thunderstorm days/yr

Summer density alt

1,365 ft

Flight category by month

VFRMVFRIFRLIFR

KISP monthly flight-category distribution, 2006–2025
Month	VFR %	MVFR %	IFR %	LIFR %
Jan	78.5	8.6	6.5	6.5
Feb	78.0	7.7	7.5	6.8
Mar	78.6	8.2	7.1	6.1
Apr	77.3	8.2	7.0	7.5
May	71.3	9.1	8.9	10.7
Jun	75.6	9.6	7.9	6.9
Jul	78.3	11.2	8.0	2.5
Aug	81.4	11.5	6.2	0.9
Sep	78.5	10.4	7.7	3.4
Oct	76.1	12.3	7.6	4.0
Nov	81.8	8.9	5.4	3.9
Dec	74.1	9.8	8.5	7.6

Average wind by month

KISP average wind by month, 2006–2025
Month	Mean wind (kt)
Jan	8.8 kt
Feb	9.0 kt
Mar	9.6 kt
Apr	9.1 kt
May	7.8 kt
Jun	7.3 kt
Jul	6.9 kt
Aug	6.5 kt
Sep	6.9 kt
Oct	7.6 kt
Nov	8.0 kt
Dec	8.4 kt

Mid-Atlantic flying weather Most VFR airports Windiest airports Flying Weather Index

Historical summary of past observations — not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.

KISP airport diagram

Official FAA taxiway and runway layout. Tap to zoom.

The FAA airport diagram for Long Island MacArthur Airport in Islip, NY shows the runway and taxiway layout across 8 runways, ramp areas, and hold-short positions — review it before taxiing at an unfamiliar field.

Official FAA airport diagram · d-TPP cycle 2608 · Not for navigation. Download the official FAA PDF ↗

KISP weather — frequently asked

What runways are available at KISP?+

KISP has 8 runways — 06, 10, 15L, 15R, 24, 28, 33L, 33R; the longest is 7,006 ft. This page computes the live crosswind for each runway end from the current wind.

Does KISP report its own weather?+

Yes — Long Island MacArthur Airport has its own weather station and publishes METAR observations, which this page decodes live.

Does KISP have a TAF?+

Yes — the TAF is shown on this page below the current conditions.

Does KISP broadcast D-ATIS?+

No — KISP does not broadcast D-ATIS. Alerts for KISP from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR instead.

Where can I find the KISP airport diagram?+

The official FAA airport diagram for Long Island MacArthur Airport (KISP) 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 Long Island MacArthur Airport (KISP)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for Long Island MacArthur 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 KISP 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.

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