WxDecoder

WI73 Weather Happy Jacks Air Strip

Eureka, WisconsinElevation 800 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KOSH · 12 NM E · 53 min old
Ceiling 12,000 ft, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KOSH
WIND
010@12
steady
VISIBILITY
10 SM
16.1 km
CEILING
12,000 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 visibility 10 SM, temperature 15C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 47F, 11% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Thursday: Showers And Thunderstorms Likely. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 47 NNE 5 kt – 11%
Monday Mostly Cloudy 54/43 NE 8 kt – 10%
Tuesday Partly Sunny 65/52 ESE 9 kt 16 kt 10%
Wednesday Mostly Sunny 72/55 SSW 10 kt – 66%
Thursday Showers And Thunderstorms Likely 69/47 WSW 7 kt – 66% Thunderstorms in the forecast
Friday Chance Rain Showers 67/51 ESE 6 kt – 50%
Saturday Chance Rain Showers 67/51 SSE 8 kt – 50%
Sunday Chance Rain Showers 64 WSW 7 kt – 36%

Source: National Weather Service (office GRB). 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 WI73. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 1,200 ft

NW/SE
Dimensions
1,200 x 75 ft
Surface
Turf
RWY NW
Traffic patternLeft
RWY SE
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
800 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2255Z 5:55 PM
Sunrise
1223Z 7:23 AM
Loggable night
2325Z (6:25 PM local) → 1154Z (6:54 AM local)
end of evening to start of morning civil twilight
Position lights required
2255Z (5:55 PM local) → 1223Z (7:23 AM local)
sunset to sunrise (91.209)
Night passenger currency
2355Z (6:55 PM local) → 1123Z (6:23 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

Happy Jacks Air Strip is in Eureka, Wisconsin. Field elevation 800 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATAWI73
SectionalGREEN BAY
Center (ARTCC)CHICAGO
Flight service (AFSS)GREEN BAY
RegionWisconsin
CountryUnited States
Coordinates44.0000, -88.8334
Distance from city0 NM SE
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

WI73 traffic patterns

2026-06-15 to 2026-08-06, 2 days observed · data 2026-10-23

Insufficient confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
0
AVG OPS/DAY
1
Operations trend (1 days)

Busiest day: Mon · Busiest month: Jun

FLEET MIX
Turboprop 100%

Mostly turboprop aircraft.

TOP AIRCRAFT TYPES
›AT8T (Turboprop) · ~1 landings/mo
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

WI73 has no on-field report. Nearest reporting station: KOSH (12 NM E, VFR).

KOSH Wittman Regional Airport
12 NM E
VFR
KFLD Fond du Lac County Airport
20 NM SE
VFR
KATW Appleton International Airport
21 NM NE
VFR
KUNU Dodge County Airport
35 NM S
VFR
KCLI Clintonville Municipal Airport
37 NM N
MVFR
KGRB Austin Straubel International Airport
42 NM NE
VFR
AIRPORT REMARKS

Operational remarks

›FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗WI73 on OurAirports
FREQUENTLY ASKED
Does WI73 have a METAR?
No on-field METAR is issued for WI73. This page uses the nearest reporting station as a reference.
Does WI73 have a TAF?
No TAF is issued directly for WI73. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at WI73?
WI73 sits at 800 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for WI73?
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.