WS77 Weather Circle T Airport

Grantsburg, WisconsinElevation 895 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KOEO · 22 NM S · 16 min old
Ceiling 5,000 ft, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KOEO
WIND
350@7
steady
VISIBILITY
10 SM
16.1 km
CEILING
5,000 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 290° at 3 kt, visibility 10 SM, temperature 7.1C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight chance light rain, low near 37F, 36% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Saturday: Showers And Thunderstorms Likely. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Chance Light Rain 37 N 4 kt – 36%
Monday Chance Light Rain 49/38 NE 4 kt – 94%
Tuesday Rain Showers 61/46 SE 13 kt 22 kt 94%
Wednesday Chance Rain Showers 67/42 SW 9 kt 17 kt 52%
Thursday Mostly Sunny 62/39 NW 4 kt – 13%
Friday Chance Rain Showers 63/45 E 4 kt – 61%
Saturday Showers And Thunderstorms Likely 62/44 SE 4 kt – 61% Thunderstorms in the forecast
Sunday Slight Chance Rain Showers then Mostly Cloudy 59 N 4 kt – 19%

Source: National Weather Service (office DLH). Forecast issued 0231Z.

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 WS77. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 2,215 ft

09/27
Dimensions
2,215 x 96 ft
Surface
Turf
RWY 09
RWY 27

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
895 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2308Z 6:08 PM
Sunrise
1241Z 7:41 AM
Loggable night
2338Z (6:38 PM local) → 1211Z (7:11 AM local)
end of evening to start of morning civil twilight
Position lights required
2308Z (6:08 PM local) → 1241Z (7:41 AM local)
sunset to sunrise (91.209)
Night passenger currency
0008Z (7:08 PM local) → 1141Z (6:41 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

Circle T Airport is in Grantsburg, Wisconsin. Field elevation 895 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerMICHAEL SHUTE
Manager phone715-431-0043
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATAWS77
SectionalGREEN BAY
Center (ARTCC)MINNEAPOLIS
Flight service (AFSS)GREEN BAY
RegionWisconsin
CountryUnited States
Coordinates45.6840, -92.6871
Distance from city7 NM S
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

WS77 has no on-field report. Nearest reporting station: KOEO (22 NM S, VFR).

AIRPORT REMARKS

Operational remarks

›FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
›PRVDD OBST IN RY APCH SFC BE LOWERED OR REMOVED OR RELOCATE THLDS TO PROVIDE 20:1 SLOPE, AREA 125 FT EITHER SIDE RY + 200 FT OFF RY ENDS CLEAR OF OBST, AREA 60 FT EITHER SIDE RY CNTRLN + 240 FT OFF RY ENDS IS CLEAR + GRADED.
FREQUENTLY ASKED
Does WS77 have a METAR?
No on-field METAR is issued for WS77. This page uses the nearest reporting station as a reference.
Does WS77 have a TAF?
No TAF is issued directly for WS77. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at WS77?
WS77 sits at 895 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for WS77?
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.