42FL Weather Plantation Key Seaplane Base
Marathon, FloridaSeaplane base
OFF-FIELD REFERENCE
Nearest report: KMTH · 29 NM SW · 50 min old
No ceiling, visibility 10 SM, gusts to 22 kt.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KMTH
WIND
010@8
gust 22 kt
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
ACTIVE NWS ALERTS
Active weather alerts
Gale Watch
26 0900Z to 27 0900Z
Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound; Bayside and Gulfside from Craig Key to West End of Seven Mile Bridge; Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms; Gulf of America including Dry Tortugas and Rebecca Shoal Channel; Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms; Hawk Channel from Ocean Reef to Craig Key out to the reef; Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef; Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef; Straits of Florida from Ocean Reef to Craig Key out 20 NM; Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM; Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM; Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM; Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out; Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out; Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out; Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out
* WHAT...For the Small Craft Advisory, northeast winds 20 to 30 kt
and seas building to 6 to 9 ft. For the Gale Watch, northeast
winds 25 to 30 kt with gusts up to 35 kt and seas 6 to 11 ft
possible early Monday morning through early Tuesday morning.
* WHERE...Straits of Florida, Hawk Channel, Gulf waters
including the Dry Tortugas, and Florida Bay.
* WHEN...In Effect.
* IMPACTS...A Gale Watch …
A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased, but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.
Small Craft Advisory
26 0230Z to 26 0900Z
Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound; Bayside and Gulfside from Craig Key to West End of Seven Mile Bridge; Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms; Gulf of America including Dry Tortugas and Rebecca Shoal Channel; Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms; Hawk Channel from Ocean Reef to Craig Key out to the reef; Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef; Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef; Straits of Florida from Ocean Reef to Craig Key out 20 NM; Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM; Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM; Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM; Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out; Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out; Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out; Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out
* WHAT...For the Small Craft Advisory, northeast winds 20 to 30 kt
and seas building to 6 to 9 ft. For the Gale Watch, northeast
winds 25 to 30 kt with gusts up to 35 kt and seas 6 to 11 ft
possible early Monday morning through early Tuesday morning.
* WHERE...Straits of Florida, Hawk Channel, Gulf waters
including the Dry Tortugas, and Florida Bay.
* WHEN...In Effect.
* IMPACTS...A Gale Watch …
A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased, but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.
Alerts from the National Weather Service. For situational awareness only; always confirm against an official briefing.
FORECAST & PILOT NOTES · SUPPLEMENTAL
Extended forecast and pilot notes
No aviation METAR is published for this airport. The nearest National Weather Service station reports wind from 10° at 9 kt, gusting 19 kt, visibility 10 SM, temperature 24C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight showers and thunderstorms likely, low near 75F, 72% chance of precipitation. Key risks: thunderstorms in the forecast.
PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Tonight: Showers And Thunderstorms Likely. Watch for developing convection and plan alternates.
| Day | Conditions | Temp F | Wind | Gusts | Precip | Pilot note |
|---|---|---|---|---|---|---|
| Tonight | Showers And Thunderstorms Likely | 75 | NE 17 kt | – | 72% | Thunderstorms in the forecast |
| Monday | Showers And Thunderstorms Likely | 83/75 | NE 17 kt | – | 72% | |
| Tuesday | Showers And Thunderstorms Likely | 83/76 | NE 17 kt | – | 56% | |
| Wednesday | Chance Showers And Thunderstorms | 84/78 | NE 13 kt | – | 51% | |
| Thursday | Chance Showers And Thunderstorms | 82/78 | NE 9 kt | – | 32% | |
| Friday | Slight Chance Showers And Thunderstorms | 82/78 | E 9 kt | – | 23% | |
| Saturday | Slight Chance Showers And Thunderstorms | 83/77 | E 13 kt | – | 25% | |
| Sunday | Chance Showers And Thunderstorms | 82 | E 13 kt | – | 32% |
Source: National Weather Service (office KEY). Forecast issued 0242Z.
Radar
Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.
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Visit David ClarkRUNWAYS & WIND
Crosswind calculator
No runway layout is available for 42FL. Enter a runway number or heading to estimate wind components.
RUNWAYS
Runway detail & declared distances
09W/27W
RWY 09W
Traffic patternRight
RWY 27W
Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.
DAYLIGHT & NIGHT
Sun & logging windows
Sunset
2247Z 6:47 PM
Sunrise
1126Z 7:26 AM
Loggable night
2310Z (7:10 PM local) → 1102Z (7:02 AM local)
end of evening to start of morning civil twilight
Position lights required
2247Z (6:47 PM local) → 1126Z (7:26 AM local)
sunset to sunrise (91.209)
Night passenger currency
2347Z (7:47 PM local) → 1026Z (6:26 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
Plantation Key Seaplane Base is in Marathon, Florida. Airport facts are drawn from OurAirports and the FAA NASR dataset.
OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSeaplane base
ManagerHENRY RUZAKOWSKI
Manager phone305-664-2406
AttendedALL FRI-MON, IREG
CHARTS & AIRSPACE
ICAO / IATA42FL
SectionalMIAMI
Center (ARTCC)MIAMI
Flight service (AFSS)MIAMI
RegionFlorida
CountryUnited States
Coordinates24.9712, -80.5956
Distance from city12 NM SW
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY
Traffic patterns
Aircraft activity data is not available for this airport yet.
NEARBY AIRPORTS
Weather reference stations
AIRPORT REMARKS
Operational remarks
›VFR; PRIVATE USE ONLY.
›FOR CD CTC MIAMI ARTCC AT 305-716-1731.
FREQUENTLY ASKED
Does 42FL have a METAR?
No on-field METAR is issued for 42FL. This page uses the nearest reporting station as a reference.
Does 42FL have a TAF?
No TAF is issued directly for 42FL. Use the nearest TAF-issuing field as a planning reference.
Is this an official preflight weather briefing for 42FL?
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.