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WS82

Johnson Island Seaplane Base

Mountain, WisconsinElevation 870 ftSeaplane base

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RUNWAYS

Runway detail & declared distances

2 runways · longest 4,200 ft

09W/27W
Dimensions
3,600 x 400 ft
Surface
Water
RWY 09W
RWY 27W
16W/34W
Dimensions
4,200 x 400 ft
Surface
Water
RWY 16W
RWY 34W

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

AIRPORT INFORMATION

Facility & services

Johnson Island Seaplane Base is in Mountain, Wisconsin. Field elevation 870 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSeaplane base
ManagerALVIN D. JOHNSON
Manager phone815-728-9007
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATAWS82
SectionalGREEN BAY
Center (ARTCC)MINNEAPOLIS
Flight service (AFSS)GREEN BAY
RegionWisconsin
CountryUnited States
Coordinates45.1267, -88.4433
Distance from city5 NM SW
SERVICES & LIGHTING
Control towerNon-towered
AIRPORT REMARKS

Operational remarks

›PRVDD CLEAR 20:1 APPROACHES, AND YOU REFERENCE (FAR) 91.115, RIGHT OF WAY RULES; WATER OPERATIONS.
›FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
›JOHNSON ISLAND HAS DOCKING DURING SUMMER MONTHS FOR VISITORS.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗WS82 on OurAirports
FREQUENTLY ASKED
Does WS82 have a METAR?
No on-field METAR is issued for WS82. This page uses the nearest reporting station as a reference.
Does WS82 have a TAF?
No TAF is issued directly for WS82. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at WS82?
WS82 sits at 870 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for WS82?
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.