Olson's Airport
3WI1 · Union Grove, WI · Print kneeboard
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-04 · night begins 08:41 PM
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:15 AM | 10:15Z |
| Sunrise | 05:47 AM | 10:47Z |
| Sunset | 08:09 PM | 01:09Z |
| Evening civil twilight Loggable night begins | 08:41 PM | 01:41Z |
Plan a flight from 3WI1
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Advisories
NOTAMs
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Pilot reports
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Airspace hazards
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Runways
RWY 27LEFT traffic
- Heading
- 270° true
- Dimensions
- 1,600 × 100 ft
- TPA
- 1,800 ft MSL (≈1,000 AGL) · standard
- Surface
- TURF
Enter the left downwind (heading 090°) on the 45° at 1,800 ft MSL (≈1,000 AGL).
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: schematic (headings + lengths)
Headings shown are true (magnetic variation unavailable).
| Runway | Length | Your margin |
|---|---|---|
| 09/27 | 1,600 ft |
Prefer one flat page? Full runway details for 3WI1 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 3WI1 kneeboard →
Comms & NavAids
Nearby navigation aids
OBK 113.00 · BAE 116.40
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| OBK · Northbrook | VOR/DME | 113.00 · 77X | High | r349° / 26.8 NM |
| BAE · Badger | VOR/DME | 116.40 · 111X | High | r161° / 28.9 NM |
Charts & procedures
No published instrument procedures or Chart Supplement for 3WI1 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- 3WI1
- Coordinates
- 42.6570, -88.0876
- Elevation
- 825 ft MSL
Detailed FAA facility data isn't available for this airport.
No published services or facility detail for 3WI1.
Nearby airports
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Also nearby: WI86 Ori Airport (private) (2 NM) · 4WN9 Digger Dougs Airport (private) (4 NM) · WI95 Binzel Airport (private) (6 NM) · C89 Sylvania Airport (6 NM) · WI72 Valhalla Airport (private) (7 NM)
About 3WI1
Olson's Airport (3WI1) is an airport in Union Grove, WI, at 825 ft MSL. It has 1 runway, the longest 1,600 ft. This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 3WI1, refreshed from the Aviation Weather Center and FAA NASR.
What is the longest runway at 3WI1?
Olson's Airport has 1 runway; the longest is 1,600 ft. See the Runways section for headings, surface, and lighting.
Where is 3WI1?
Olson's Airport is in Union Grove, WI, at an elevation of 825 ft MSL. Coordinates: 42.6570, -88.0876.
Fly out of 3WI1 often?
Save 3WI1 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 3WI1 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.