Judge Lewis Field Mount Ayr Municipal Airport
1Y3 · Mount Ayr, IA · 1,265 ft elevation · var 5E · Non-towered
Airport information
- FAA LID
- 1Y3
- Coordinates
- 40.7060, -94.2202
- Elevation
- 1,265 ft MSL
- Magnetic variation
- 5E
- Sectional chart
- OMAHA
- Airport use
- Public
- Control tower
- No
- ARTCC
- MINNEAPOLIS (ZMP)
- Flight service (FSS)
- FORT DODGE
- NOTAM facility
- FOD
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1971/04
- Distance from city
- 2 SE
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:12 AM | 10:12Z |
| Sunrise | 05:46 AM | 10:46Z |
| Sunset | 08:51 PM | 01:51Z |
| Evening civil twilight Loggable night begins | 09:25 PM | 02:25Z |
Plan a flight from 1Y3
Night operations
- Pilot-controlled lighting
- Usually keyed on CTAF 122.9 — confirm the click sequence in the Chart Supplement ↗
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 17 · 170°
- Pattern
- left (turns left)
- TPA
- 2,300 ft MSL (≈1,000 AGL)
- CTAF
- 122.9
Enter the left downwind for Rwy 17 at 2,300 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 17/35
2,600 ft × 40 ft · ASPH-TURF (Good)- Heading
- 170° mag · 175° true
- Traffic pattern
- Left
- Approach obstacle
- Tree, 48 ft, 1,058 ft from threshold, 88 ft R of centerline — 22:1 slope to clear
- Heading
- 350° mag · 355° true
- Traffic pattern
- Left
- Approach obstacle
- Tree, 13 ft, 306 ft from threshold, 85 ft L of centerline — 23:1 slope to clear
| Runway | Length | Your margin |
|---|---|---|
| 17/35 | 2,600 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| LMN · Lamoni | VORTAC | 116.70 | r293° / 13.2 NM |
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
Ownership & management
Remarks FAA
- AIRPORT IS NOT LIGHTED
- FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
- 17/35 THLDS MARKED WITH YELLOW CONES; DSPLCD THLD & EDGES 60 FT FM CNTRLN.
- 35 FT WIDE ASPH STRIP IN MID OF 120 FT WIDE TURF RWY.
Nearby airports
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 1Y3 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.
About 1Y3
Judge Lewis Field Mount Ayr Municipal Airport (1Y3) is an airport in Mount Ayr, IA, at 1,265 ft MSL. It has 1 runway, the longest 2,600 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 1Y3, refreshed from the Aviation Weather Center and FAA NASR.
Does 1Y3 have a control tower?
No. Judge Lewis Field Mount Ayr Municipal Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 1Y3?
Judge Lewis Field Mount Ayr Municipal Airport has 1 runway; the longest is 2,600 ft. See the Runways tab for headings, surface, and lighting.
Where is 1Y3?
Judge Lewis Field Mount Ayr Municipal Airport is in Mount Ayr, IA, at an elevation of 1,265 ft MSL. Coordinates: 40.7060, -94.2202.
Fly out of 1Y3 often?
Save 1Y3 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.