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.
Wind from the southeast (140°) at 5 kt, visibility 10+ statute miles, scattered clouds at 13,000 ft, broken clouds at 25,000 ft, temperature 21°C (70°F), altimeter 30.08 inHg. Conditions are Visual Flight Rules (VFR), ceiling 25,000 ft.
METAR KISP 130256Z 14005KT 10SM SCT130 BKN250 21/17 A3008 RMK AO2 SLP184 T02110167 58005
Current pilot readout for KISP
KISP is currently VFR with winds from 140° at 5 knots, visibility 10+ statute miles, and a 25,000 ft ceiling. The strongest crosswind component is currently on runway 06, about 5 knots. Density altitude is approximately 650 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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For pilots and crews overnighting at Long Island MacArthur Airport (KISP).
Nearby Pilot Hotel Deals
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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 | 5 kt head | 0 kt |
| 15R | 5,186 ft | ASP | 5 kt head | 0 kt |
| 06 | 7,006 ft | ASP | 0 kt head | 5 kt right |
| 24 | 7,006 ft | ASP | 0 kt head | 5 kt left |
| 33L | 5,186 ft | ASP | 5 kt tail | 0 kt |
| 33R | 3,175 ft | ASP | 5 kt tail | 0 kt |
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 20 h: wind 0→5 kt, ceiling unlimited → 25,000 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.
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.
Pilot reports (PIREPs) within 100 NM of KISP
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
BDL UA /OV BDL270030/TM 0200/FL265/TP E75L/TB LGT CHOP/RM DURC 200-255 SMOOTH ABV
BDL UAHeader: reporting station and UA: a routine pilot report.OV BDL270030Location: fix or navaid, optionally with a radial and distance in NM.TM 0200Reported at 02:00 UTC.FL265Altitude: 26,500 ft MSL.TP E75LAircraft type reporting.TB LGT CHOPTurbulence: light chop.RM DURC 200-255 SMOOTH ABVRemarks.Show raw report
POU UA /OV PWL210010/TM 0118/FL070/TP C25A/TB NEG/IC NEG/RM DURD 170-080
POU UAHeader: reporting station and UA: a routine pilot report.OV PWL210010Location: fix or navaid, optionally with a radial and distance in NM.TM 0118Reported at 01:18 UTC.FL070Altitude: 7,000 ft MSL.TP C25AAircraft type reporting.TB NEGTurbulence: none reported.IC NEGIcing: none reported.RM DURD 170-080Remarks.⚠️ 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 mostly VFR across 21 observations, with 0 flight-category changes. The lowest ceiling was 25,000 ft. Wind most often came from the SE.
Most recent change: MVFR → VFR
- 24
- 32%
- 06
- 24%
- 33L/33R
- 23%
- 15L/15R
- 21%
TAF | Terminal Aerodrome Forecast
Issued 0522Z (1:22 AM EDT)
TAF KISP 130522Z 1306/1406 14006KT P6SM FEW030 BKN250 FM130900 14005KT 6SM -SHRA BKN015 OVC025 TEMPO 1309/1311 3SM SHRA BR FM131100 13007KT 3SM SHRA BKN006 OVC010 TEMPO 1311/1315 1SM +TSRA BKN006 OVC010CB FM131500 36008KT 5SM -SHRA BR BKN008 BKN015 PROB30 1315/1317 4SM -TSRA SCT008 BKN015CB FM131800 29007KT P6SM BKN015 FM132100 28006KT P6SM BKN035
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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
- 16h 39m
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.
Within 25 NM
8 airports+2 more within 25 NM
25–50 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.
- 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
Historical Flying Weather at KISP
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.
Full historical breakdown
Flight category by month
| 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
| 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 |
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 2610 · 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-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 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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⚠️ 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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