WxDecoder

1Y3 Weather Judge Lewis Field Mount Ayr Municipal Airport

Mount Ayr, IowaElevation 1,265 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KCSQ · 20 NM N · 23 min old
No ceiling, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KCSQ
WIND
050@7
steady
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
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 20° at 4 kt, visibility 10 SM, temperature 13C. Treat this as supplemental, not an aviation observation. Forecast suggests monday partly sunny, high near 74F, low near 57F, 4% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Thursday: Showers And Thunderstorms Likely then Partly Sunny. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Monday Partly Sunny 74/57 ESE 7 kt – 4%
Tuesday Mostly Cloudy then Slight Chance Rain Showers 69/55 SSW 8 kt – 17%
Wednesday Chance Rain Showers 73/57 S 12 kt – 62%
Thursday Showers And Thunderstorms Likely then Partly Sunny 74/56 SW 6 kt – 62% Thunderstorms in the forecast
Friday Chance Rain Showers 72/55 SE 9 kt – 51%
Saturday Chance Showers And Thunderstorms 69/53 SSE 7 kt – 45%
Sunday Slight Chance Rain Showers 68 S 5 kt – 21%

Source: National Weather Service (office DMX). Forecast issued 0918Z.

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
1 runway
NESW1735
WIND
No on-field weather data
No reporting weather station on the field, so wind components cannot be computed. See nearby stations below.
RUNWAYS

Runway detail & declared distances

1 runway · longest 2,600 ft

17/35
Dimensions
2,600 x 40 ft
Surface
Asphalt
RWY 17175°T
Traffic patternLeft
RWY 35355°T
Traffic patternLeft

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
1,265 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2322Z 6:22 PM
Sunrise
1240Z 7:40 AM
Loggable night
2350Z (6:50 PM local) → 1212Z (7:12 AM local)
end of evening to start of morning civil twilight
Position lights required
2322Z (6:22 PM local) → 1240Z (7:40 AM local)
sunset to sunrise (91.209)
Night passenger currency
0022Z (7:22 PM local) → 1140Z (6:40 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

Judge Lewis Field Mount Ayr Municipal Airport is in Mount Ayr, Iowa. Field elevation 1,265 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeSmall airport
ManagerMIKE WARIN
Manager phone(641) 202-1939
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATA1Y3
SectionalOMAHA
Center (ARTCC)MINNEAPOLIS
Flight service (AFSS)FORT DODGE
RegionIowa
CountryUnited States
Coordinates40.7060, -94.2203
Distance from city2 NM SE
SERVICES & LIGHTING
Control towerNon-towered
BeaconSee remarks
CTAF122.900
FREQUENCIES

Communications

122.900
CTAF
CTAF

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

1Y3 has no on-field report. Nearest reporting station: KCSQ (20 NM N, VFR).

KCSQ Creston Municipal Airport
20 NM N
VFR
KICL Schenck Field
37 NM W
VFR
KDSM Des Moines International Airport
56 NM NE
VFR
KAIO Atlantic Municipal Airport
56 NM NW
VFR
KSTJ Rosecrans Memorial Airport
64 NM SW
VFR
KPRO Perry Municipal Airport
67 NM N
VFR
AIRPORT REMARKS

Operational remarks

›FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
›35 FT WIDE ASPH STRIP IN MID OF 120 FT WIDE TURF RWY.
›AIRPORT IS NOT LIGHTED
›17/35 THLDS MARKED WITH YELLOW CONES; DSPLCD THLD & EDGES 60 FT FM CNTRLN.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗1Y3 on OurAirports
FREQUENTLY ASKED
Does 1Y3 have a METAR?
No on-field METAR is issued for 1Y3. This page uses the nearest reporting station as a reference.
Does 1Y3 have a TAF?
No TAF is issued directly for 1Y3. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 1Y3?
1Y3 sits at 1,265 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 1Y3?
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.