Judge Lewis Field/Mount Ayr Municipal
1Y3 · Mount Ayr, IA · Non-towered · Print kneeboard · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-11-02 · night begins 05:41 PM
| Event | Local (CST) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:20 AM | 12:20Z |
| Sunrise | 06:48 AM | 12:48Z |
| Sunset | 05:12 PM | 23:12Z |
| Evening civil twilight Loggable night begins | 05:41 PM | 23:41Z |
Plan a flight from 1Y3
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
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Airspace hazards · Checking SIGMETs and G-AIRMETs…
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Runways
RWY 17LEFT traffic
- Heading
- 170° mag · 175° true
- Dimensions
- 2,600 × 40 ft
- TPA
- 2,300 ft MSL (≈1,000 AGL) · standard
- Surface
- ASPH-TURF
- CTAF
- 122.9
Enter the left downwind (heading 350°) on the 45° at 2,300 ft MSL (≈1,000 AGL).
More details — RWY 17
- Threshold elev
- 1,226 ft
- Approach obstacle
- Tree, 48 ft, 1,058 ft from threshold, 88 ft R of centerline — 22:1 slope to clear
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 17/35 | 2,600 ft |
Prefer one flat page? Full runway details for 1Y3 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 1Y3 kneeboard →
Comms & NavAids
Communication frequencies
Taxi & takeoff
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
LMN 116.70
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| LMN · Lamoni | VOR/DME | 116.70 · 114X | High | r293° / 13.3 NM |
Prefer one flat list? All 1Y3 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- 1Y3
- Coordinates
- 40.7064, -94.2203
- 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 · 1-800-WX-BRIEF
- NOTAM facility
- FOD
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1971/04
- Distance from city
- 2 SE
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 under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
Ownership & management 2 contacts
Remarks FAA · 4 notes
General
- FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
Runways
- 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.
Lighting
- AIRPORT IS NOT LIGHTED
Nearby airports
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Also nearby: Y46 Bedford Municipal (24 NM) · K19 Albany Municipal (27 NM) · 75K Bethany Memorial (28 NM)
About 1Y3
Judge Lewis Field/Mount Ayr Municipal (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 is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 1Y3?
Judge Lewis Field/Mount Ayr Municipal has 1 runway; the longest is 2,600 ft. See the Runways section for headings, surface, and lighting.
Where is 1Y3?
Judge Lewis Field/Mount Ayr Municipal is in Mount Ayr, IA, at an elevation of 1,265 ft MSL. Coordinates: 40.7064, -94.2203.
More about 1Y3
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.
Something here wrong or out of date? Report a data problem.