WxDecoder

MA78 Weather Russell Mill Pond Seaplane Base

Plymouth, MassachusettsElevation 55 ftSeaplane base
OFF-FIELD REFERENCE
Nearest report: KPYM · 5 NM W · 31 min old
No ceiling, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KPYM
WIND
210@5
steady
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
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 200° at 4 kt, visibility 10 SM, temperature 7C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight clear, low near 38F, 0% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Tonight Clear 38 SW 5 kt – 0%
Monday Sunny 66/46 SW 8 kt – 3%
Tuesday Sunny 52/35 NE 12 kt – 0%
Wednesday Sunny 54/42 E 3 kt – 0%
Thursday Sunny 63/51 SW 11 kt – 1%
Friday Sunny 68/49 W 8 kt – 2%
Saturday Mostly Sunny 62/50 NE 6 kt – 8%
Sunday Partly Sunny then Slight Chance Light Rain 64 SW 9 kt – 21%

Source: National Weather Service (office BOX). Forecast issued 0222Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND
Crosswind calculator
No runway layout is available for MA78. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 2,800 ft

09W/27W
Dimensions
2,800 x 400 ft
Surface
Water
RWY 09W
RWY 27W

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Field elevation

Field elevation
55 ft MSL

Density and pressure altitude need a current temperature and altimeter from the METAR.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2146Z 5:46 PM
Sunrise
1107Z 7:07 AM
Loggable night
2214Z (6:14 PM local) → 1038Z (6:38 AM local)
end of evening to start of morning civil twilight
Position lights required
2146Z (5:46 PM local) → 1107Z (7:07 AM local)
sunset to sunrise (91.209)
Night passenger currency
2246Z (6:46 PM local) → 1007Z (6:07 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

Russell Mill Pond Seaplane Base is in Plymouth, Massachusetts. Field elevation 55 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSeaplane base
ManagerDANIEL AND KEVIN ENOS
Manager phone774-766-0027
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATAMA78
SectionalNEW YORK
Center (ARTCC)BOSTON
Flight service (AFSS)BRIDGEPORT
RegionMassachusetts
CountryUnited States
Coordinates41.9179, -70.6278
Distance from city3 NM SE
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

MA78 traffic patterns

2026-06-20 to 2026-09-08, 4 days observed · data 2026-10-23

Insufficient confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
2
AVG OPS/DAY
4
Operations trend (1 days)

Busiest day: Tue · Busiest month: Sep

FLEET MIX
Helicopter 67%Piston single 33%

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›B06 (Helicopter) · ~2 landings/mo
›P28A (Piston single) · ~1 landings/mo
›C172 (Piston single) · ~0 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly rotorcraft.

›B06 (Helicopter)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

MA78 has no on-field report. Nearest reporting station: KPYM (5 NM W, VFR).

KPYM Plymouth Municipal Airport
5 NM W
VFR
KFMH Cape Cod Coast Guard Air Station
16 NM S
VFR
KPVC Provincetown Municipal Airport
20 NM NE
VFR
KEWB New Bedford Regional Airport
21 NM SW
VFR
KHYA Cape Cod Gateway Airport
22 NM SE
VFR
KOWD Norwood Memorial Airport
29 NM NW
VFR
AIRPORT REMARKS

Operational remarks

›PROVIDED VFR/DALGT OPNS ONLY.
›FOR CD CTC BOSTON APCH AT 603-594-5551, WHEN APCH CLSD CTC BOSTON ARTCC AT 603-879-6859..
›RWY 09W/27W HAS 100 FT PLINE 1000 FT SW.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗MA78 on OurAirports
FREQUENTLY ASKED
Does MA78 have a METAR?
No on-field METAR is issued for MA78. This page uses the nearest reporting station as a reference.
Does MA78 have a TAF?
No TAF is issued directly for MA78. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at MA78?
MA78 sits at 55 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for MA78?
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.