Plantation Key Seaplane Base (42FL) Area Aviation Weather & Runway Winds
Aviation weather near Plantation Key Seaplane Base in Marathon, FL, decoded from the nearest reporting station (KMTH) — conditions, runway crosswinds, and free Telegram airport alerts.
Plantation Key Seaplane Base (42FL) is a seaplane base in Marathon, FL. 42FL has no weather station of its own — conditions here are decoded from KMTH, about 29 nm away, the nearest reporting station, and local conditions can differ. Its 2 runways (09, 27) — longest 6,600 ft — are checked against the current wind in the crosswind table below. The nearest TAF is issued for KMTH. Track it in the ATIS Alerts Telegram bot to get alerts read from KMTH, the station this page is based on.
No weather station at this airport — showing the nearest station KMTH, 28.9 nm away.
Wind from the southwest (220°) at 3 kt, visibility 10+ statute miles, scattered clouds at 2,700 ft, broken clouds at 3,400 ft, temperature 29°C (84°F), altimeter 29.94 inHg. Conditions are Visual Flight Rules (VFR), ceiling 3,400 ft.
METAR KMTH 290453Z AUTO 22003KT 10SM SCT027 BKN034 29/24 A2994 RMK AO2 SLP139 T02890244 403170250
What changed at KMTH (nearest station)?
Since the 0353Z (11:53 PM EDT) report — compared automatically against the latest METAR.
- A ceiling formed at 3,400 ft.
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Current pilot readout for 42FL
Based on the nearest station (KMTH), 42FL is currently VFR with winds from 220° at 3 knots, visibility 10+ statute miles, and a 3,400 ft ceiling. The strongest crosswind component is currently on runway 09, about 2 knots. Density altitude is approximately 1,650 ft (field elevation 0 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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Track 42FL 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 42FL. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 09FAV | 6,600 ft | WATER | 2 kt tail | 2 kt left |
| 27 | 6,600 ft | WATER | 2 kt tail | 2 kt left |
Open the crosswind calculator — 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 4→3 kt, ceiling unlimited → 3,400 ft.
42FL weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Plantation Key Seaplane Base in Marathon, FL: 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 42FL is headed.
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 42FL
Reported by pilots in flight over the past 6 hours — via aviationweather.gov.
Show raw report
FXE UA /OV FXE270005/TM 0120/FL019/TP C172/SK SKC
FXE UAHeader — reporting station and UA: a routine pilot report.OV FXE270005Location — fix or navaid, optionally with a radial and distance in NM.TM 0120Reported at 01:20 UTC.FL019Altitude: 1,900 ft MSL.TP C172Aircraft type reporting.SK SKCSky condition — cloud bases and tops in hundreds of feet MSL.Show raw report
EYW UA /OV EYW100040/TM 0110/FL230/TP B38M/TB OCNL LGT CHOP
EYW UAHeader — reporting station and UA: a routine pilot report.OV EYW100040Location — fix or navaid, optionally with a radial and distance in NM.TM 0110Reported at 01:10 UTC.FL230Altitude: 23,000 ft MSL.TP B38MAircraft type reporting.TB OCNL LGT CHOPTurbulence: occasional light chop.Show raw report
FLL UA /OV FLL090006/TM 0050/FL015/TP A320/SK CLR/TB SMOOTH
FLL UAHeader — reporting station and UA: a routine pilot report.OV FLL090006Location — fix or navaid, optionally with a radial and distance in NM.TM 0050Reported at 00:50 UTC.FL015Altitude: 1,500 ft MSL.TP A320Aircraft type reporting.SK CLRSky condition — cloud bases and tops in hundreds of feet MSL.TB SMOOTHTurbulence: smooth.Show raw report
FXE UA /OV FXE270005/TM 0015/FL015/TP CL60/SK SKC
FXE UAHeader — reporting station and UA: a routine pilot report.OV FXE270005Location — fix or navaid, optionally with a radial and distance in NM.TM 0015Reported at 00:15 UTC.FL015Altitude: 1,500 ft MSL.TP CL60Aircraft type reporting.SK SKCSky condition — cloud bases and tops in hundreds of feet MSL.⚠️ PIREPs are unverified pilot reports. Not for operational use — conditions change between reports.
Recent aviation weather trends at 42FL
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KMTH reported mostly VFR across 30 observations, with 4 flight-category changes. The strongest gust reached 18 kt, the lowest ceiling was 2,400 ft. Wind most often came from the SW.
Most recent change: MVFR → VFR
Most recent change: MVFR → VFR
- 09/27
- 100%
TAF — Terminal Aerodrome Forecast
Issued 2326Z (7:26 PM EDT)
TAF KMTH 282326Z 2900/2924 24006KT P6SM FEW030
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Airport facts
Reference data from the OurAirports dataset.
- Type
- Seaplane base
- FAA LID
- 42FL
- City
- Marathon
- State
- Florida
- Country
- United States
- Elevation
- 0 ft
- Coordinates
- 24.9712, -80.5956
- Runways
- 2
- Longest runway
- 6,600 ft
- Weather reporting
- Nearest station KMTH
- TAF
- Nearest KMTH
- Time zone
- America/New_York
- Next sunset
- 18h 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
2 airports25–50 NM
8 airports+2 more within 50 NM
50–100 NM
8 airports+2 more within 100 NM
42FL weather — frequently asked
What runways are available at 42FL?+
42FL has 2 runways — 09, 27; the longest is 6,600 ft. This page computes the live crosswind for each runway end from the current wind.
Where does the weather shown for 42FL come from?+
Plantation Key Seaplane Base does not have its own weather station. Conditions shown here come from the nearest reporting station, KMTH, about 29 nm away — close enough for situational awareness, but local conditions at 42FL can differ.
Does 42FL have a TAF?+
Yes — the KMTH TAF is shown on this page below the current conditions.
Does 42FL broadcast D-ATIS?+
No — 42FL does not broadcast D-ATIS. Alerts for 42FL from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.
Pilot PIREPs for Plantation Key Seaplane Base (42FL)
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 Plantation Key Seaplane Base, 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 42FL 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.
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