Greenwood Lake Airport (K4N1) Area Aviation Weather & Runway Winds
Aviation weather near Greenwood Lake Airport in West Milford, NJ, decoded from the nearest reporting station (KFWN): conditions, runway crosswinds, and free Telegram airport alerts.
Greenwood Lake Airport (K4N1) is a general aviation airport serving pilots in and around West Milford, NJ at 791 ft. K4N1 has no weather station of its own. Conditions here are decoded from KFWN, about 13 nm away, the nearest reporting station, and local conditions can differ. Its 2 runways (06, 24), longest 3,471 ft, are checked against the current wind in the crosswind table below. CTAF is 122.9. Track it in the ATIS Alerts Telegram bot to get alerts read from KFWN, the station this page is based on.
No weather station at this airport: showing the nearest station KFWN, 13.2 nm away.
Wind from the south-southwest (200°) at 6 kt, visibility 1 statute miles, broken clouds at 600 ft, overcast at 3,900 ft, temperature 23°C (73°F), altimeter 29.98 inHg. Conditions are Instrument Flight Rules (IFR), ceiling 600 ft.
SPECI KFWN 011618Z AUTO 20006KT 1SM TSRA BR BKN006 OVC039 23/22 A2998 RMK AO2 RAB05 TSB15 P0010 T02280222 $
Current pilot readout for K4N1
Based on the nearest station (KFWN), K4N1 is currently IFR with winds from 200° at 6 knots, visibility 1 statute miles, and a 600 ft ceiling. The strongest crosswind component is currently on runway 06, about 3 knots. Density altitude is approximately 1,850 ft (field elevation 791 ft). K4N1 does not publish a TAF. The nearest TAF station is KTEB, about 21 nm away.
⚠️ 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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Track K4N1 free on TelegramRunway 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 K4N1. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 24FAV | 3,471 ft | ASP | 5 kt head | 3 kt left |
| 06 | 3,471 ft | ASP | 5 kt tail | 3 kt right |
Open the crosswind calculator to try your own wind and runway numbers →
K4N1 weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Greenwood Lake Airport in West Milford, NJ: 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 K4N1 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 K4N1
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
ALB UA /OV ALB130008/TM 0151/FL040/TP B737/SK BASE 050/RM DURD RY 19
ALB UAHeader: reporting station and UA: a routine pilot report.OV ALB130008Location: fix or navaid, optionally with a radial and distance in NM.TM 0151Reported at 01:51 UTC.FL040Altitude: 4,000 ft MSL.TP B737Aircraft type reporting.SK BASE 050Sky condition: cloud bases and tops in hundreds of feet MSL.RM DURD RY 19Remarks.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.Show raw report
BGM UA /OV RKA/TM 0046/FL350/TP E75L/TB CONS LGT CHOP 350
BGM UAHeader: reporting station and UA: a routine pilot report.OV RKALocation: fix or navaid, optionally with a radial and distance in NM.TM 0046Reported at 00:46 UTC.FL350Altitude: 35,000 ft MSL.TP E75LAircraft type reporting.TB CONS LGT CHOP 350Turbulence: continuous light chop 350.Show raw report
SWF UA /OV SWF270010/TM 2346/FL085/TP E75L/TB INTMT LGT CHOP 100-085/RM DURD IN PRECIP FLOSI4 ARR
SWF UAHeader: reporting station and UA: a routine pilot report.OV SWF270010Location: fix or navaid, optionally with a radial and distance in NM.TM 2346Reported at 23:46 UTC.FL085Altitude: 8,500 ft MSL.TP E75LAircraft type reporting.TB INTMT LGT CHOP 100-085Turbulence: intermittent light chop 10,000–8,500 ft.RM DURD IN PRECIP FLOSI4 ARRRemarks.Show raw report
BDL UA /OV BDL250020/TM 2335/FL270/TP A319/TB NEG/RM DURC N90 DEPT
BDL UAHeader: reporting station and UA: a routine pilot report.OV BDL250020Location: fix or navaid, optionally with a radial and distance in NM.TM 2335Reported at 23:35 UTC.FL270Altitude: 27,000 ft MSL.TP A319Aircraft type reporting.TB NEGTurbulence: none reported.RM DURC N90 DEPTRemarks.Show raw report
AVP UA /OV LOPEZ/TM 2228/FL100/TP E170/SK OVC044-TOP070
AVP UAHeader: reporting station and UA: a routine pilot report.OV LOPEZLocation: fix or navaid, optionally with a radial and distance in NM.TM 2228Reported at 22:28 UTC.FL100Altitude: 10,000 ft MSL.TP E170Aircraft type reporting.SK OVC044-TOP070Sky condition: cloud bases and tops in hundreds of feet MSL.Show raw report
BGM UA /OV BNK130010/TM 2224/FL160/TP PC12/IC LGT RIME
BGM UAHeader: reporting station and UA: a routine pilot report.OV BNK130010Location: fix or navaid, optionally with a radial and distance in NM.TM 2224Reported at 22:24 UTC.FL160Altitude: 16,000 ft MSL.TP PC12Aircraft type reporting.IC LGT RIMEIcing: light rime.Show raw report
PNE UA /OV PNE240001/TM 2055/FL005/TP H25B/RM RPTD +/- 8KTS DURD RY24
PNE UAHeader: reporting station and UA: a routine pilot report.OV PNE240001Location: fix or navaid, optionally with a radial and distance in NM.TM 2055Reported at 20:55 UTC.FL005Altitude: 500 ft MSL.TP H25BAircraft type reporting.RM RPTD +/- 8KTS DURD RY24Remarks.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at K4N1
From ATIS Alerts' hourly weather history.
Recent trend data is not available yet for K4N1. Check back as ATIS Alerts collects more airport weather history.
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Airport facts
Reference data from the OurAirports dataset.
- Type
- General aviation airport
- FAA LID
- 4N1
- City
- West Milford
- State
- New Jersey
- Country
- United States
- Elevation
- 791 ft
- Coordinates
- 41.1282, -74.3467
- Runways
- 2
- Longest runway
- 3,471 ft
- Weather reporting
- Nearest station KFWN
- TAF
- Nearest KTEB
- CTAF
- 122.9 MHz
- Time zone
- America/New_York
- Next sunset
- 20h 44m
Run a flight school, FBO, or club here? Embed K4N1'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.
- Bergen County Silent Fliers - Warwick Airport , Greenwood Lake, NY · 8 mi
- RCRCC - Rockland County RC Club, Sterling Forest , Tuxedo Park, NY · 11 mi
- Wayne Modelers - Barbour Pond Park , Wayne, NJ · 13 mi
K4N1 weather: frequently asked
What runways are available at K4N1?+
K4N1 has 2 runways: 06, 24; the longest is 3,471 ft. This page computes the live crosswind for each runway end from the current wind.
Where does the weather shown for K4N1 come from?+
Greenwood Lake Airport does not have its own weather station. Conditions shown here come from the nearest reporting station, KFWN, about 13 nm away, close enough for situational awareness, but local conditions at K4N1 can differ.
Does K4N1 have a TAF?+
No. K4N1 does not publish its own TAF. The nearest TAF station is KTEB, about 21 nm away.
Does K4N1 broadcast D-ATIS?+
No. K4N1 does not broadcast D-ATIS. Alerts for K4N1 from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.
Pilot PIREPs for Greenwood Lake Airport (K4N1)
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 Greenwood Lake 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 K4N1 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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