2WI5 Weather Blair Lake Airport

Mercer, WisconsinElevation 1,625 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KARV · 21 NM SE · 17 min old
Ceiling 10,000 ft, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KARV
WIND
Calm
no steady wind
VISIBILITY
10 SM
16.1 km
CEILING
10,000 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 calm, visibility 10 SM, temperature 7.5C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight chance light rain, low near 35F, 27% 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 35 NW 4 kt – 27%
Monday Mostly Cloudy 47/34 NE 4 kt – 73%
Tuesday Rain Showers Likely 57/45 SE 9 kt 22 kt 62%
Wednesday Partly Sunny 66/43 SW 9 kt 22 kt 59%
Thursday Chance Rain Showers then Mostly Sunny 60/35 NW 4 kt – 33%
Friday Chance Rain Showers 60/42 S 4 kt – 56%
Saturday Showers And Thunderstorms Likely 60/42 S 4 kt – 56% Thunderstorms in the forecast
Sunday Slight Chance Rain Showers 58 SW 4 kt 17 kt 24%

Source: National Weather Service (office DLH). Forecast issued 0232Z.

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 2WI5. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 2,000 ft

09/27
Dimensions
2,000 x 60 ft
Surface
Turf
RWY 09
RWY 27
Traffic patternRight

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
1,625 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2257Z 5:57 PM
Sunrise
1232Z 7:32 AM
Loggable night
2328Z (6:28 PM local) → 1201Z (7:01 AM local)
end of evening to start of morning civil twilight
Position lights required
2257Z (5:57 PM local) → 1232Z (7:32 AM local)
sunset to sunrise (91.209)
Night passenger currency
2357Z (6:57 PM local) → 1132Z (6:32 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

Blair Lake Airport is in Mercer, Wisconsin. Field elevation 1,625 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerKEN REESE
Manager phone414-358-2069
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATA2WI5
SectionalGREEN BAY
Center (ARTCC)MINNEAPOLIS
Flight service (AFSS)GREEN BAY
RegionWisconsin
CountryUnited States
Coordinates46.0974, -90.1632
Distance from city6 NM SW
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

2WI5 has no on-field report. Nearest reporting station: KARV (21 NM SE, VFR).

AIRPORT REMARKS

Operational remarks

›FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
›OBS REMOVED/LOWERED OR THR DSPLCD TO PRVD 20:1 SLOPE; 125' EITHER SIDE OF CNTRLN & 200' EITHER END BE CLEAR.
FREQUENTLY ASKED
Does 2WI5 have a METAR?
No on-field METAR is issued for 2WI5. This page uses the nearest reporting station as a reference.
Does 2WI5 have a TAF?
No TAF is issued directly for 2WI5. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 2WI5?
2WI5 sits at 1,625 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 2WI5?
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.