WxDecoder

WS01 Weather Archie's Seaplane Base

Janesville, WisconsinElevation 768 ftSeaplane base
OFF-FIELD REFERENCE
Nearest report: KJVL · 7 NM S · 2 min old
Ceiling 25,000 ft, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KJVL
WIND
Calm
no steady wind
VISIBILITY
10 SM
16.1 km
CEILING
25,000 ft
lowest BKN/OVC
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 190° at 4 kt, visibility 10 SM, temperature 16C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 49F, 1% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Thursday: Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 49 NW 4 kt – 1%
Monday Mostly Cloudy 60/46 NE 9 kt – 10%
Tuesday Mostly Cloudy 67/53 SE 9 kt – 6%
Wednesday Mostly Sunny 72/56 S 9 kt – 37%
Thursday Chance Showers And Thunderstorms 72/51 SW 9 kt – 37% Thunderstorms in the forecast
Friday Chance Rain Showers 71/54 SE 9 kt – 38%
Saturday Chance Rain Showers 69/53 S 9 kt – 57%
Sunday Chance Rain Showers 67 SW 9 kt – 35%

Source: National Weather Service (office MKX). Forecast issued 0146Z.

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 WS01. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 7,800 ft

12W/30W
Dimensions
7,800 x 175 ft
Surface
Water
RWY 12W
Displaced threshold1,000 ft
Traffic patternLeft
RWY 30W
Displaced threshold1,000 ft
Traffic patternLeft

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
768 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2258Z 5:58 PM
Sunrise
1222Z 7:22 AM
Loggable night
2327Z (6:27 PM local) → 1153Z (6:53 AM local)
end of evening to start of morning civil twilight
Position lights required
2258Z (5:58 PM local) → 1222Z (7:22 AM local)
sunset to sunrise (91.209)
Night passenger currency
2358Z (6:58 PM local) → 1122Z (6:22 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

Archie's Seaplane Base is in Janesville, Wisconsin. Field elevation 768 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSeaplane base
ManagerARCHIE H. HENKELMANN
Manager phone608-752-5474
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATAWS01
SectionalCHICAGO
Center (ARTCC)CHICAGO
Flight service (AFSS)GREEN BAY
RegionWisconsin
CountryUnited States
Coordinates42.7375, -89.0709
Distance from city4 NM NW
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

WS01 has no on-field report. Nearest reporting station: KJVL (7 NM S, VFR).

KJVL Southern Wisconsin Regional Airport
7 NM S
VFR
KMSN Dane County Regional Truax Field
27 NM NW
VFR
KRFD Chicago Rockford International Airport
33 NM S
VFR
KFEP Albertus Airport
37 NM SW
VFR
KUES Waukesha County Airport
41 NM NE
VFR
KUNU Dodge County Airport
44 NM N
VFR
AIRPORT REMARKS

Operational remarks

›FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
›EMAIL ADDRESS: SEAPLANEPILOT@CHARTER.NET (ALL LOWER CASE)
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗WS01 on OurAirports
FREQUENTLY ASKED
Does WS01 have a METAR?
No on-field METAR is issued for WS01. This page uses the nearest reporting station as a reference.
Does WS01 have a TAF?
No TAF is issued directly for WS01. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at WS01?
WS01 sits at 768 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for WS01?
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.